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List of TCP and UDP port numbers

From Wikipedia, the free encyclopedia

This is a list of TCP and UDP port numbers used by protocols for operation of network applications. The (TCP) and the (UDP) only need one for , bidirectional traffic. They usually use port numbers that match the services of the corresponding TCP or UDP implementation, if they exist.

The Internet Assigned Numbers Authority (IANA) is responsible for maintaining the official assignments of port numbers for specific uses,[1] However, many unofficial uses of both well-known and registered port numbers occur in practice. Similarly, many of the official assignments refer to protocols that were never or are no longer in common use. This article lists port numbers and their associated protocols that have experienced significant uptake.

Table legend

[edit]
Legend of TCP and UDP protocol table cells for port numbers
Cell Description
Yes Described protocol is assigned by IANA for this port, and is: standardized, specified, or widely used for such.
Unofficial Described protocol is not assigned by IANA for this port, but is: standardized, specified, or widely used for such.
Assigned Described protocol is assigned by IANA for this port,[2] but is not: standardized, specified, or widely used for such.
No Described protocol is not assigned by IANA for this port, standardized, specified, or widely used for such.
Reserved Port is reserved by IANA,[2] generally to prevent collision having its previous use removed.[3][4] The port number may be available for assignment upon request to IANA.[3]

Well-known ports

[edit]
This is a dynamic list and may never be able to satisfy particular standards for completeness. You can help by adding missing items with reliable sources.

The port numbers in the range from 0 to 1023 (0 to 210 − 1) are the well-known ports or system ports.[3] They are used by system processes that provide widely used types of network services. On Unix-like operating systems, a process must execute with superuser privileges to be able to bind a network socket to an IP address using one of the well-known ports.[5]

Well-known ports
Port TCP UDP SCTP DCCP Description
0 Reserved In programming APIs (not in communication between hosts), requests a system-allocated (dynamic) port[6]
1 Yes Assigned TCP Port Service Multiplexer (TCPMUX). Historic. Both TCP and UDP have been assigned to TCPMUX by IANA,[2] but by design only TCP is specified.[7]
2 Assigned compressnet (Management Utility)[3]
3 Assigned compressnet (Compression Process)[3]
5 Assigned Remote Job Entry[8] was historically using socket 5 in its old socket form, while MIB PIM has identified it as TCP/5[9] and IANA has assigned both TCP and UDP 5 to it.
7 Yes Echo Protocol[10][11]
9 Yes Yes[12] Assigned Discard Protocol[13]
No Unofficial Wake-on-LAN[14]
11 Yes Active Users (systat service)[15][16]
13 Yes Daytime Protocol[17]
15 Unofficial No Previously netstat service[2][15]
17 Yes Quote of the Day (QOTD)[18]
18 Yes Message Send Protocol[19][20]
19 Yes Character Generator Protocol (CHARGEN)[21]
20 Yes Assigned Yes[12] File Transfer Protocol (FTP) data transfer[11]
21 Yes Assigned Yes[12] File Transfer Protocol (FTP) control (command)[11][12][22][23]
22 Yes Assigned Yes[12] Secure Shell (SSH),[11] secure logins, file transfers (scp, sftp) and port forwarding
23 Yes Assigned Telnet protocol—unencrypted text communications[11][24]
25 Yes Assigned Simple Mail Transfer Protocol (SMTP),[11][25] used for email routing between mail servers
27 Assigned nsw-fe (NSW User System FE)[3][26]
28 Unofficial Palo Alto Networks' Panorama High Availability (HA) sync encrypted port.[27]
29 Assigned msg-icp (MSG ICP)[3]
31 Assigned msg-auth (MSG Authentication)[3]
33 Assigned dsp (Display Support Protocol)[3]
37 Yes Time Protocol[28]
38 Assigned rap (Route Access Protocol)[3]
39 Assigned rlp (Resource Location Protocol)[3]
41 Assigned graphics (Graphics)[3]
42 Assigned Yes Host Name Server Protocol[29]
43 Yes Assigned WHOIS protocol[30][31][32]
44 Assigned mpm-flags (MPM FLAGS Protocol)[3]
45 Assigned mpm (Message Processing Module [recv])[3]
46 Assigned mpm-snd (MPM [default send])[3]
47 Reserved
48 Assigned auditd (Digital Audit Daemon)[3]
49 Yes TACACS Login Host protocol.[33] TACACS+, still in draft which is an improved but distinct version of TACACS, only uses TCP 49.[34]
50 Assigned re-mail-ck (Remote Mail Checking Protocol)[3]
51 Reserved Historically used for Interface Message Processor logical address management,[35] entry has been removed by IANA on 2013-05-25
52 Assigned Xerox Network Systems (XNS) Time Protocol. Despite this port being assigned by IANA, the service is meant to work on SPP (ancestor of IPX/SPX), instead of TCP/IP.[36]
53 Yes Domain Name System (DNS)[37][11]
54 Assigned Xerox Network Systems (XNS) Clearinghouse (Name Server). Despite this port being assigned by IANA, the service is meant to work on SPP (ancestor of IPX/SPX), instead of TCP/IP.[36]
55 Assigned isi-gl (ISI Graphics Language)[3]
56 Assigned Xerox Network Systems (XNS) Authentication Protocol. Despite this port being assigned by IANA, the service is meant to work on SPP (ancestor of IPX/SPX), instead of TCP/IP.[36]
58 Assigned Xerox Network Systems (XNS) Mail. Despite this port being assigned by IANA, the service is meant to work on SPP (ancestor of IPX/SPX), instead of TCP/IP.[36]
61 Reserved Historically assigned to the NIFTP-Based Mail protocol,[38] but was never documented in the related IEN.[39] The port number entry was removed from IANA's registry on 2017-05-18.[2]
62 Assigned acas (ACA Services)[3]
63 Assigned whoispp (whois++)[3]
64 Assigned covia (Communications Integrator (CI))[3]
65 Assigned tacacs-ds (TACACS-Database Service)[3]
66 Assigned sql-net (Oracle SQL*NET)[3]
67 Assigned Yes Bootstrap Protocol (BOOTP) server;[11] also used by Dynamic Host Configuration Protocol (DHCP)
68 Assigned Yes Bootstrap Protocol (BOOTP) client;[11] also used by Dynamic Host Configuration Protocol (DHCP)
69 Assigned Yes Trivial File Transfer Protocol (TFTP)[11][40][41][42]
70 Yes Assigned Gopher protocol[43]
71–74 Yes NETRJS protocol[44][45][46]
76 Assigned deos (Distributed External Object Store)[3]
78 Assigned vettcp (vettcp)[3]
79 Yes Assigned Finger protocol[11][47][48]
80 Yes Yes[12] Hypertext Transfer Protocol (HTTP)[49][50] uses TCP in versions 1.x and 2. HTTP/3 uses QUIC,[51] a transport protocol on top of UDP.
81 Unofficial TorPark onion routing[52]
82 Assigned xfer (XFER Utility)[3]
82 Unofficial TorPark control[53]
83 Assigned mit-ml-dev (MIT ML Device)[3]
84 Assigned ctf (Common Trace Facility)[3]
85 Assigned mit-ml-dev (MIT ML Device)[3]
86 Assigned mfcobol (Micro Focus Cobol)[3]
88 Yes Kerberos[11][54][55] authentication system
89 Assigned su-mit-tg (SU/MIT Telnet Gateway)[3]
90 Assigned dnsix (DNSIX Security Attribute Token Map)[3]
90 Unofficial PointCast (dotcom)[2]
91 Assigned mit-dov (MIT Dover Spooler)[3]
92 Assigned npp (Network Printing Protocol)[3]
93 Assigned dcp (Device Control Protocol)[3]
94 Assigned objcall (Tivoli Object Dispatcher)[3]
95 Yes Assigned SUPDUP, terminal-independent remote login[56]
96 Assigned dixie (DIXIE Protocol Specification)[3]
97 Assigned swift-rvf (Swift Remote Virtual File Protocol)[3]
98 Assigned tacnews (TAC News)[3]
99 Assigned metagram (Metagram Relay)[3]
101 Yes Assigned NIC host name[57]
102 Yes Assigned ISO Transport Service Access Point (TSAP) Class 0 protocol;[58][59]
104 Yes Digital Imaging and Communications in Medicine (DICOM; also port 11112)
105 Yes CCSO Nameserver[60]
106 Unofficial No macOS Server, (macOS) password server[11]
107 Yes Remote User Telnet Service (RTelnet)[61]
108 Yes IBM Systems Network Architecture (SNA) gateway access server
109 Yes Assigned Post Office Protocol, version 2 (POP2)[62]
110 Yes Assigned Post Office Protocol, version 3 (POP3)[11][63][64]
111 Yes Open Network Computing Remote Procedure Call (ONC RPC, sometimes referred to as Sun RPC)
112 Yes McIDAS Data Transmission Protocol
113 Yes No Ident, authentication service/identification protocol,[11][65] used by IRC servers to identify users
Yes Assigned Authentication Service (auth), the predecessor to identification protocol. Used to determine a user's identity of a particular TCP connection.[66]
115 Yes Assigned Simple File Transfer Protocol[67]
117 Yes UUCP Mapping Project (path service)[68]
118 Yes Structured Query Language (SQL) Services[jargon]
119 Yes Assigned Network News Transfer Protocol (NNTP),[11] retrieval of newsgroup messages[69][70]
123 Assigned Yes Network Time Protocol (NTP), used for time synchronization[11]
126 Yes Formerly Unisys Unitary Login, renamed by Unisys to NXEdit. Used by Unisys Programmer's Workbench for Clearpath MCP, an IDE for Unisys MCP software development
135 Yes DCE endpoint resolution
Yes Microsoft EPMAP (End Point Mapper), also known as DCE/RPC Locator service,[71] used to remotely manage services including DHCP server, DNS server and WINS. Also used by DCOM
137 Yes NetBIOS Name Service, used for name registration and resolution[72][73]
138 Assigned Yes NetBIOS Datagram Service[11][72][73]
139 Yes Assigned NetBIOS Session Service[72][73]
143 Yes Assigned Internet Message Access Protocol (IMAP),[11] management of electronic mail messages on a server[74]
151 Assigned HEMS
152 Yes Background File Transfer Program (BFTP)[75][importance?]
153 Yes Simple Gateway Monitoring Protocol (SGMP), a protocol for remote inspection and alteration of gateway management information[76]
156 Yes Structured Query Language (SQL) Service[jargon]
158 Yes Distributed Mail System Protocol (DMSP, sometimes referred to as Pcmail)[77][importance?]
161 Assigned Yes Simple Network Management Protocol (SNMP)[68]
162 Yes Simple Network Management Protocol Trap (SNMPTRAP)[68]
165 Assigned Xerox
169 Assigned SEND
170 Yes Network PostScript print server
177 Yes X Display Manager Control Protocol (XDMCP), used for remote logins to an X Display Manager server[78][self-published source]
179 Yes Assigned Yes[12] Border Gateway Protocol (BGP),[79] used to exchange routing and reachability information among autonomous systems (AS) on the Internet
180 Assigned ris
194 Yes Internet Relay Chat (IRC)[80]
199 Yes SNMP Unix Multiplexer (SMUX)[81]
201 Yes AppleTalk Routing Maintenance
209 Yes Assigned Quick Mail Transfer Protocol[82][self-published source]
210 Yes ANSI Z39.50
213 Yes Internetwork Packet Exchange (IPX)
218 Yes Message posting protocol (MPP)
220 Yes Internet Message Access Protocol (IMAP), version 3
225–241 Reserved
249–255 Reserved
259 Yes Efficient Short Remote Operations (ESRO)
262 Yes Arcisdms
264 Yes Border Gateway Multicast Protocol (BGMP)
280 Yes http-mgmt
300 Unofficial ThinLinc Web Access, Spartan protocol [83]
308 Yes Novastor Online Backup
311 Yes Assigned macOS Server Admin[11] (officially AppleShare IP Web administration[2])
312 Unofficial No macOS Xsan administration[11]
318 Yes PKIX Time Stamp Protocol (TSP)
319 Yes Precision Time Protocol (PTP) event messages
320 Yes Precision Time Protocol (PTP) general messages
323 Yes Resource Public Key Infrastructure[84]
350 Yes Mapping of Airline Traffic over Internet Protocol (MATIP) type A
351 Yes MATIP type B
356 Yes cloanto-net-1 (used by Cloanto Amiga Explorer and VMs)
366 Yes On-Demand Mail Relay (ODMR)
369 Yes Rpc2portmap
370 Yes codaauth2, Coda authentication server
Yes securecast1, outgoing packets to NAI's SecureCast servers[85]As of 2000
371 Yes ClearCase albd
376 Yes Amiga Envoy Network Inquiry Protocol
383 Yes HP data alarm manager
384 Yes A Remote Network Server System
387 Yes AURP (AppleTalk Update-based Routing Protocol)[86]
388 Yes Assigned Unidata LDM near real-time data distribution protocol[87][self-published source][88][self-published source]
389 Yes Assigned Lightweight Directory Access Protocol (LDAP)[11]
399 Yes Digital Equipment Corporation DECnet+ (Phase V) over TCP/IP (RFC1859)
401 Yes Uninterruptible power supply (UPS)
427 Yes Service Location Protocol (SLP)[11]
433 Yes NNTP, part of Network News Transfer Protocol
434 Yes Mobile IP Agent (RFC 5944)
443 Yes Yes[12] Hypertext Transfer Protocol Secure (HTTPS)[49][50] uses TCP in versions 1.x and 2. HTTP/3 uses QUIC,[51] a transport protocol on top of UDP.
444 Yes Simple Network Paging Protocol (SNPP), RFC 1568
445 Yes Microsoft-DS (Directory Services) Active Directory,[89] Windows shares
Yes Assigned Microsoft-DS (Directory Services) SMB[11] file sharing
464 Yes Kerberos Change/Set password
465[note 1] Yes No Message Submission over TLS protocol[90][91]
Yes No URL Rendezvous Directory for Cisco SSM[90]
475 Yes tcpnethaspsrv, Aladdin Knowledge Systems Hasp services
476–490 Unofficial Centro Software ERP[92] ports
491 Unofficial GO-Global remote access and application publishing software
497 Yes Retrospect
500 Assigned Yes Internet Security Association and Key Management Protocol (ISAKMP) / Internet Key Exchange (IKE)[11]
502 Yes Modbus Protocol
504 Yes Citadel, multiservice protocol for dedicated clients for the Citadel groupware system
510 Yes FirstClass Protocol (FCP), used by FirstClass client/server groupware system
512 Yes Rexec, Remote Process Execution
Yes comsat, together with biff
513 Yes rlogin
Yes Who[68]
514 Unofficial Remote Shell, used to execute non-interactive commands on a remote system (Remote Shell, rsh, remsh)
No Yes Syslog,[11] used for system logging
515 Yes Assigned Line Printer Daemon (LPD),[11] print service
517 Yes Talk
518 Yes NTalk
520 Yes efs, extended file name server
Yes Routing Information Protocol (RIP)
521 Yes Routing Information Protocol Next Generation (RIPng)
524 Yes NetWare Core Protocol (NCP) is used for a variety things such as access to primary NetWare server resources, Time Synchronization, etc.
525 Yes Timed, Timeserver
530 Yes Remote procedure call (RPC)
532 Yes Assigned netnews[11]
533 Yes netwall, for emergency broadcasts
540 Yes Unix-to-Unix Copy Protocol (UUCP)
542 Yes commerce (Commerce Applications)
543 Yes klogin, Kerberos login
544 Yes kshell, Kerberos Remote shell
546 Yes DHCPv6 client
547 Yes DHCPv6 server
548 Yes Assigned Apple Filing Protocol (AFP) over TCP[11]
550 Yes new-rwho, new-who[68]
554 Yes Real Time Streaming Protocol (RTSP)[11]
556 Yes Remotefs, RFS, rfs_server
560 Yes rmonitor, Remote Monitor
561 Yes monitor
563 Yes NNTP over TLS/SSL (NNTPS)
564 Unofficial 9P (Plan 9)
585 No Previously assigned for use of Internet Message Access Protocol over TLS/SSL (IMAPS), now deregistered in favour of port 993.[93]
587 Yes Assigned Email Message Submission (No longer preferred; see port 465.)[91][11][94]
591 Yes FileMaker 6.0 (and later) Web Sharing (HTTP Alternate, also see port 80)
593 Yes HTTP RPC Ep Map, Remote procedure call over Hypertext Transfer Protocol, often used by Distributed Component Object Model services and Microsoft Exchange Server
601 Yes Reliable Syslog Service — used for system logging
604 Yes TUNNEL profile,[95] a protocol for BEEP peers to form an application layer tunnel
623 Yes ASF Remote Management and Control Protocol (ASF-RMCP) & IPMI Remote Management Protocol
625 Unofficial No Open Directory Proxy (ODProxy)[11]
631 Yes Internet Printing Protocol (IPP)[11]
Unofficial Common Unix Printing System (CUPS) administration console (extension to IPP)
635 Yes RLZ DBase
636 Yes Assigned Lightweight Directory Access Protocol over TLS/SSL (LDAPS)[11]
639 Yes Multicast Source Discovery Protocol, MSDP
641 Yes SupportSoft Nexus Remote Command (control/listening), a proxy gateway connecting remote control traffic
643 Yes SANity
646 Yes Label Distribution Protocol (LDP), a routing protocol used in MPLS networks
647 Yes DHCP Failover protocol[96]
648 Yes Registry Registrar Protocol (RRP)[97]
651 Yes IEEE-MMS
653 Yes SupportSoft Nexus Remote Command (data), a proxy gateway connecting remote control traffic
654 Yes Media Management System (MMS) Media Management Protocol (MMP)[98]
655 Yes Tinc VPN daemon
657 Yes IBM RMC (Remote monitoring and Control) protocol, used by System p5 AIX Integrated Virtualization Manager (IVM)[99] and Hardware Management Console to connect managed logical partitions (LPAR) to enable dynamic partition reconfiguration
660 Yes Assigned macOS Server administration,[2] version 10.4 and earlier[11]
666 Yes Doom, the first online first-person shooter
Unofficial airserv-ng,[100] aircrack-ng's server for remote-controlling wireless devices
674 Yes Application Configuration Access Protocol (ACAP)
684 Yes CORBA IIOP SSL[101]
688 Yes REALM-RUSD (ApplianceWare Server Appliance Management Protocol)
690 Yes Velneo Application Transfer Protocol (VATP)
691 Yes MS Exchange Routing
694 Yes Linux-HA high-availability heartbeat
695 Yes Assigned IEEE Media Management System over SSL (IEEE-MMS-SSL)[102]
698 Yes Optimized Link State Routing (OLSR)
700 Yes Extensible Provisioning Protocol (EPP), a protocol for communication between domain name registries and registrars (RFC 5734)
701 Yes Link Management Protocol (LMP),[103] a protocol that runs between a pair of nodes and is used to manage traffic engineering (TE) links
702 Yes IRIS[104][105] (Internet Registry Information Service) over BEEP (Blocks Extensible Exchange Protocol)[106] (RFC 3983)
706 Yes Secure Internet Live Conferencing (SILC)
711 Yes Cisco Tag Distribution Protocol[107][108][109]—being replaced by the MPLS Label Distribution Protocol[110]
712 Yes Topology Broadcast based on Reverse-Path Forwarding routing protocol (TBRPF; RFC 3684)
749 Yes Kerberos administration[11]
750 Yes kerberos-iv, Kerberos version IV
751 Unofficial kerberos_master, Kerberos authentication
752 Unofficial passwd_server, Kerberos password (kpasswd) server
753 Yes Reverse Routing Header (RRH)[111]
Unofficial userreg_server, Kerberos userreg server
754 Yes tell send
Unofficial krb5_prop, Kerberos v5 slave propagation
760 Unofficial krbupdate [kreg], Kerberos registration
782 Unofficial Conserver serial-console management server
783 Unofficial SpamAssassin spamd daemon
800 Yes mdbs-daemon
802 Yes MODBUS/TCP Security[112]
808 Unofficial Microsoft Net.TCP Port Sharing Service
829 Yes Assigned Certificate Management Protocol[113]
830 Yes NETCONF over SSH
831 Yes NETCONF over BEEP
832 Yes NETCONF for SOAP over HTTPS
833 Yes NETCONF for SOAP over BEEP
843 Unofficial Adobe Flash[114]
847 Yes DHCP Failover protocol
848 Yes Group Domain Of Interpretation (GDOI) protocol
853 Yes DNS over TLS (RFC 7858)
Yes DNS over QUIC or DNS over DTLS[115]
860 Yes iSCSI (RFC 3720)
861 Yes OWAMP control (RFC 4656)
862 Yes TWAMP control (RFC 5357)
873 Yes rsync file synchronization protocol
888 Unofficial cddbp, CD DataBase (CDDB) protocol (CDDBP)
Unofficial IBM Endpoint Manager Remote Control
897 Unofficial Brocade SMI-S RPC
898 Unofficial Brocade SMI-S RPC SSL
902 Unofficial VMware ESXi[116][117]
903 Unofficial VMware ESXi[116][117]
953 Yes Reserved BIND remote name daemon control (RNDC)[118][119]
981 Unofficial Remote HTTPS management for firewall devices running embedded Check Point VPN-1 software[120]
987 Unofficial Sony PlayStation Wake On Lan
Unofficial Microsoft Remote Web Workplace, a feature of Windows Small Business Server[121]
988 Unofficial Lustre (file system)[122] Protocol (data).
989 Yes FTPS Protocol (data), FTP over TLS/SSL
990 Yes FTPS Protocol (control), FTP over TLS/SSL
991 Yes Netnews Administration System (NAS)[123]
992 Yes Telnet protocol over TLS/SSL
993 Yes Assigned Internet Message Access Protocol over TLS/SSL (IMAPS)[11]
994 Reserved Previously assigned to Internet Relay Chat over TLS/SSL (IRCS), but was not used in common practice.
995 Yes Post Office Protocol 3 over TLS/SSL (POP3S)[11]
1010 Unofficial ThinLinc web-based administration interface[124]
1011–1020 Reserved
1023 Reserved [2]
Unofficial z/OS Network File System (NFS) (potentially ports 991–1023)[80][81][125]

Registered ports

[edit]
This is a dynamic list and may never be able to satisfy particular standards for completeness. You can help by adding missing items with reliable sources.

The range of port numbers from 1024 to 49151 (210 to 215 + 214 − 1) are the registered ports. They are assigned by IANA for specific service upon application by a requesting entity.[2] On most systems, registered ports can be used without superuser privileges.

Registered ports
Port TCP UDP SCTP DCCP Description
1024 Reserved Reserved
1025 Assigned network blackjack[126]
1027 Reserved Reserved
Yes Native IPv6 behind IPv4-to-IPv4 NAT Customer Premises Equipment (6a44)[127]
1029 Unofficial Microsoft DCOM services
1058 Yes nim, IBM AIX Network Installation Manager (NIM)
1059 Yes nimreg, IBM AIX Network Installation Manager (NIM)
1080 Yes SOCKS proxy
1085 Yes WebObjects[11]
1098 Yes rmiactivation, Java remote method invocation (RMI) activation
1099 Yes Assigned rmiregistry, Java remote method invocation (RMI) registry
1100 Unofficial SaltoSystems - Handshake for IP-Components
1112 Unofficial ESET virus updates[128]
1113 Assigned
[note 2][129]		 Yes[130] Licklider Transmission Protocol (LTP) delay tolerant networking protocol
1119 Yes Battle.net chat/game protocol, used by Blizzard's games[131]
1167 Yes Yes Yes Cisco IP SLA (Service Assurance Agent)
1194 Yes OpenVPN
1198 Yes The cajo project Free dynamic transparent distributed computing in Java
1212 Unofficial Equalsocial Fediverse protocol
1214 Yes Kazaa
1220 Yes Assigned QuickTime Streaming Server administration[11]
1234 Yes Infoseek search agent
Unofficial VLC media player default port for UDP/RTP stream
1241 Unofficial Nessus Security Scanner
1270 Yes Microsoft System Center Operations Manager (SCOM) (formerly Microsoft Operations Manager (MOM)) agent
1293 Yes Internet Protocol Security (IPSec)
1311 Yes Windows RxMon.exe
Unofficial Dell OpenManage HTTPS[132]
1314 Unofficial Festival Speech Synthesis System server[133]
1319 Yes AMX ICSP (Protocol for communications with AMX control systems devices)
1337 Yes Men&Mice DNS[134]
Unofficial Strapi[135]
Unofficial Razer Chroma SDK Server[136]
Unofficial Sails.js default port[137]
1341 Yes Qubes (Manufacturing Execution System)
1344 Yes Internet Content Adaptation Protocol
1352 Yes HCL Notes / Domino (RPC) protocol
1360 Yes Mimer SQL
1414 Yes IBM WebSphere MQ (formerly known as MQSeries)
1417 Yes Timbuktu Service 1 Port
1418 Yes Timbuktu Service 2 Port
1419 Yes Timbuktu Service 3 Port
1420 Yes Timbuktu Service 4 Port
1431 Yes Reverse Gossip Transport Protocol (RGTP), used to access a General-purpose Reverse-Ordered Gossip Gathering System (GROGGS) bulletin board, such as that implemented on the Cambridge University's Phoenix system
1433 Yes Microsoft SQL Server database management system (MSSQL) server
1434 Yes Microsoft SQL Server database management system (MSSQL) monitor
1476 Yes WiFi Pineapple Hak5.
1481 Yes AIRS data interchange.
1492 Unofficial Sid Meier's CivNet, a multiplayer remake of the original Sid Meier's Civilization game[citation needed]
1494 Unofficial Citrix Independent Computing Architecture (ICA)[138]
1500 Unofficial IBM Tivoli Storage Manager server[139]
1501 Unofficial IBM Tivoli Storage Manager client scheduler[139]
1503 Unofficial Windows Live Messenger (Whiteboard and Application Sharing)[140]
1512 Yes Microsoft's Windows Internet Name Service (WINS)
1513 Unofficial Garena game client[citation needed]
1521 Yes nCUBE License Manager
Unofficial Oracle database default listener, in future releases[when?][141] official port 2483 (TCP/IP) and 2484 (TCP/IP with SSL)
1524 Yes ingreslock, ingres
1527 Yes Oracle Net Services, formerly known as SQL*Net[142]
Unofficial Apache Derby Network Server[143]
1533 Yes IBM Sametime Virtual Places Chat
1534 No Unofficial Eclipse Target Communication Framework[144]
1540 Unofficial 1C:Enterprise server agent (ragent)[145][146]
1541 Unofficial 1C:Enterprise master cluster manager (rmngr)[145]
1542 Unofficial 1C:Enterprise configuration repository server[145]
1545 Unofficial 1C:Enterprise cluster administration server (RAS)[145]
1547 Yes Laplink
1550 Unofficial 1C:Enterprise debug server[145]
Unofficial Gadu-Gadu (direct client-to-client)[citation needed]
1560–1590 Unofficial 1C:Enterprise cluster working processes[145]
1581 Yes MIL STD 2045-47001 VMF
Unofficial IBM Tivoli Storage Manager web client[139]
1582–1583 Unofficial IBM Tivoli Storage Manager server web interface[139]
1583 Unofficial Pervasive PSQL[147]
1589 Yes Cisco VLAN Query Protocol (VQP)
1604 Unofficial DarkComet remote administration tool (RAT)[citation needed]
1626 Unofficial iSketch[148]
1627 Unofficial iSketch[148]
1628 Yes LonTalk normal
1629 Yes LonTalk urgent
1645 No Unofficial Early deployment of RADIUS before RFC standardization was done using UDP port number 1645. Enabled for compatibility reasons by default on Cisco[citation needed] and Juniper Networks RADIUS servers.[149] Official port is 1812. TCP port 1645 must not be used for RADIUS.[150]
1646 No Unofficial Old radacct port,[when?] RADIUS accounting protocol. Enabled for compatibility reasons by default on Cisco[citation needed] and Juniper Networks RADIUS servers.[149] Official port is 1813. TCP port 1646 must not be used for RADIUS.[150]
1666 Unofficial Perforce[151]
1677 Yes Novell GroupWise clients in client/server access mode
1688 Unofficial Microsoft Key Management Service (KMS) for Windows Activation[152]
1701 Yes Layer 2 Forwarding Protocol (L2F)
Assigned Yes Layer 2 Tunneling Protocol (L2TP)[11]
1707 Yes Windward Studios games (vdmplay)
Unofficial L2TP/IPsec, for establishing an initial connection[153]
1714–1764 Unofficial KDE Connect[154]
1716 Unofficial America's Army, a massively multiplayer online game (MMO)[155]
1719 Yes H.323 registration and alternate communication
1720 Yes H.323 call signaling
1723 Yes Assigned Point-to-Point Tunneling Protocol (PPTP)[11]
1755 Yes Microsoft Media Services (MMS, ms-streaming)
1761 Unofficial Novell ZENworks[156][157]
1776 Yes Emergency management information system
1801 Yes Microsoft Message Queuing
1812 Yes RADIUS authentication protocol, radius
1813 Yes RADIUS accounting protocol, radius-acct
1863 Yes Microsoft Notification Protocol (MSNP), used by the Microsoft Messenger service and a number of instant messaging Messenger clients
1880 Unofficial Node-RED[158]
1883 Yes MQTT (formerly MQ Telemetry Transport)
1900 Assigned Yes Simple Service Discovery Protocol (SSDP),[11] discovery of UPnP devices
1935 Yes Macromedia Flash Communications Server MX, the precursor to Adobe Flash Media Server before Macromedia's acquisition by Adobe on December 3, 2005
Unofficial Real Time Messaging Protocol (RTMP)[citation needed], primarily used in Adobe Flash[159]
1965 Unofficial No Gemini, a lightweight, collaboratively designed protocol, striving to fill the gap between Gopher and HTTP[160]
1967 Unofficial Cisco IOS IP Service Level Agreements (IP SLAs) Control Protocol[citation needed]
1972 Yes InterSystems Caché, and InterSystems IRIS versions 2020.3 and later
1984 Yes Big Brother
Unofficial Arweave mining node[161]
1985 Assigned Yes Cisco Hot Standby Router Protocol (HSRP)[162][self-published source]
1998 Yes Cisco X.25 over TCP (XOT) service
2000 Yes Cisco Skinny Client Control Protocol (SCCP)
2001–2009 Unofficial hexss http server (python package)
2010 Unofficial Artemis: Spaceship Bridge Simulator[163]
2033 Unofficial Civilization IV multiplayer[164]
2049 Yes Yes Yes Network File System (NFS)[11]
2056 Unofficial Civilization IV multiplayer[164]
2080 Yes Autodesk NLM (FLEXlm)
2082 Unofficial cPanel default[165]
2083 Yes Secure RADIUS Service (radsec)
Unofficial cPanel default TLS[165]
2086 Yes GNUnet
Unofficial WebHost Manager default[165]
2087 Unofficial WebHost Manager default TLS[165]
2095 Yes cPanel default web mail[165]
2096 Unofficial cPanel default TLS web mail[165]
2100 Unofficial Warzone 2100 multiplayer[citation needed]
2101 Unofficial Networked Transport of RTCM via Internet Protocol (NTRIP)[citation needed]
2102 Yes Zephyr Notification Service server
2103 Yes Zephyr Notification Service serv-hm connection
2104 Yes Zephyr Notification Service hostmanager
2123 Yes GTP control messages (GTP-C)
2137 Unofficial
2142 Yes TDMoIP (TDM over IP)
2152 Yes GTP user data messages (GTP-U)
2159 Yes GDB remote debug port
2181 Yes EForward-document transport system
Unofficial Apache ZooKeeper default client port[citation needed]
2195 Unofficial Apple Push Notification Service, binary, gateway.[11][166] Deprecated March 2021.[167]
2196 Unofficial Apple Push Notification Service, binary, feedback.[11][166] Deprecated March 2021.[167]
2197 Unofficial Apple Push Notification Service, HTTP/2, JSON-based API.
2210 Yes NOAAPORT Broadcast Network
2211 Yes EMWIN
2221 Unofficial ESET anti-virus updates[128]
2222 Yes EtherNet/IP implicit messaging for IO data
Unofficial DirectAdmin Access[168]
2222–2226 Yes ESET Remote administrator[128]
2240 Yes General Dynamics Remote Encryptor Configuration Information Protocol (RECIPe)
2261 Yes CoMotion master
2262 Yes CoMotion backup
2302 Unofficial ArmA multiplayer[169]
Unofficial Halo: Combat Evolved multiplayer host[170]
2303 Unofficial ArmA multiplayer (default port for game +1)[169][171]
Unofficial Halo: Combat Evolved multiplayer listener[170]
2305 Unofficial ArmA multiplayer (default port for game +3)[169]
2351 Unofficial AIM game LAN network port[citation needed]
2368 Unofficial Ghost (blogging platform)[172]
2369 Unofficial Default for BMC Control-M/Server Configuration Agent
2370 Unofficial Default for BMC Control-M/Server, to allow the Control-M/Enterprise Manager to connect to the Control-M/Server
2372 Unofficial Default for K9 Web Protection/parental controls, content filtering agent[citation needed]
2375 Yes Reserved Docker REST API (plain)
2376 Yes Reserved Docker REST API (SSL)
2377 Yes Reserved Docker Swarm cluster management communications[173][self-published source]
2379 Yes Reserved CoreOS etcd client communication
Unofficial KGS Go Server[174]
2380 Yes Reserved CoreOS etcd server communication
2389 Assigned OpenView Session Mgr
2399 Yes FileMaker Data Access Layer (ODBC/JDBC)
2401 Yes CVS version control system password-based server
2404 Yes IEC 60870-5-104, used to send electric power telecontrol messages between two systems via directly connected data circuits
2424 Unofficial OrientDB database listening for binary client connections[175]
2427 Yes Media Gateway Control Protocol (MGCP) media gateway
2447 Yes ovwdb—OpenView Network Node Manager (NNM) daemon
2456 Unofficial Valheim
2459 Yes XRPL
2480 Unofficial OrientDB database listening for HTTP client connections[175]
2483 Yes Oracle database listening for insecure client connections, replaces port 1521[when?]
2484 Yes Oracle database listening for SSL client connections
2500 Unofficial NetFS communication[176]
2501 Unofficial NetFS probe
2535 Yes Multicast Address Dynamic Client Allocation Protocol (MADCAP).[177] All standard messages are UDP datagrams.[178]
2541 Yes LonTalk/IP
2546–2548 Yes EVault data protection services
2593 Unofficial Ultima Online servers[citation needed]
2598 Unofficial Citrix Independent Computing Architecture (ICA) with Session Reliability; port 1494 without session reliability[138]
2599 Unofficial Ultima Online servers[citation needed]
2628 Yes DICT[179]
2638 Yes SQL Anywhere database server[180][181]
2710 Unofficial XBT Tracker.[182] UDP tracker extension is considered experimental.[183]
2727 Yes Media Gateway Control Protocol (MGCP) media gateway controller (call agent)
2759 Unofficial SuperTuxKart server [184]
2761 Yes DICOM over Integrated Secure Communication Layer (ISCL) [185]
2762 Yes DICOM over TLS[186]
2775 Yes Short Message Peer-to-Peer (SMPP)[citation needed]
2809 Yes corbaloc:iiop URL, per the CORBA 3.0.3 specification
2811 Yes gsi ftp, per the GridFTP specification
2827 Unofficial I2P BOB Bridge[187]
2944 Yes Megaco text H.248
2945 Yes Megaco binary (ASN.1) H.248
2947 Yes gpsd, GPS daemon
2948–2949 Yes WAP push Multimedia Messaging Service (MMS)
2967 Yes Symantec System Center agent (SSC-AGENT)
2989 Yes Zarkov Intelligent Agent Communication[188]
3000 Unofficial Ruby on Rails development default[189]
Unofficial Meteor development default[190][failed verification]
Unofficial Resilio Sync,[191] spun from BitTorrent Sync.
Unofficial Create React App, script to create single-page React applications[192]
Unofficial Gogs and Gitea (self-hosted Git service)[193]
Unofficial Grafana[194]
3001 Yes No Honeywell Prowatch[195]
3004 Unofficial iSync[11]
3010 Yes KWS Connector
3020 Yes Common Internet File System (CIFS). See also port 445 for Server Message Block (SMB), a dialect of CIFS.
3050 Yes gds-db (Interbase/Firebird databases)
3052 Yes APC PowerChute Network
3074 Yes Xbox LIVE and Games for Windows – Live
3101 Unofficial BlackBerry Enterprise Server communication protocol[196]
3128 Unofficial No Squid caching web proxy[197]
3225 Yes Fibre Channel over IP (FCIP)
3233 Yes WhiskerControl research control protocol
3260 Yes iSCSI
3268 Yes msft-gc, Microsoft Global Catalog (LDAP service which contains data from Active Directory forests)
3269 Yes msft-gc-ssl, Microsoft Global Catalog over SSL (similar to port 3268, LDAP over SSL)
3283 Yes Net Assistant,[11] a predecessor to Apple Remote Desktop
Unofficial Apple Remote Desktop 2.0 or later[11]
3290 Unofficial Virtual Air Traffic Simulation (VATSIM) network voice communication[citation needed]
3305 Yes Odette File Transfer Protocol (OFTP)
3306 Yes Assigned MySQL database system[11]
3323 Unofficial DECE GEODI Server
3332 Unofficial Thundercloud DataPath Overlay Control
3333 Unofficial Eggdrop, an IRC bot default port[198]
Unofficial Network Caller ID server
Unofficial CruiseControl.rb[199]
Unofficial OpenOCD (gdbserver)[200]
3344 Unofficial Repetier-Server
3351 Unofficial Pervasive PSQL[147]
3386 Yes GTP' 3GPP GSM/UMTS CDR logging protocol
3389 Yes Microsoft Terminal Server (RDP) officially registered as Windows Based Terminal (WBT)[201]
3396 Yes Novell NDPS Printer Agent
3412 Yes xmlBlaster
3423 Yes Xware xTrm Communication Protocol
3424 Yes Xware xTrm Communication Protocol over SSL
3435 Yes Pacom Security User Port
3455 Yes Resource Reservation Protocol (RSVP)
3478 Yes STUN, a protocol for NAT traversal[202]
Yes TURN, a protocol for NAT traversal[203] (extension to STUN)
Yes STUN Behavior Discovery.[204] See also port 5349.
3478–3481 Unofficial Microsoft Teams[205]
3479 Unofficial PlayStation Network[206]
3480 Unofficial PlayStation Network[206]
3483 Yes Slim Devices discovery protocol
Yes Slim Devices SlimProto protocol
3493 Yes Network UPS Tools (NUT)
3503 Yes MPLS LSP-echo Port
3516 Yes Smartcard Port
3527 Yes Microsoft Message Queuing
3535 Unofficial SMTP alternate[207]
3544 Yes Teredo tunneling
3551 Yes Apcupsd Information Port [208]
3601 Yes SAP Message Server Port[209]
3632 Yes Assigned Distcc, distributed compiler[11]
3645 Yes Cyc
3655 Yes Advanced Systems Concepts, Inc. ActiveBatch Exec Agent[210]
3659 Yes Apple SASL, used by macOS Server Password Server[11]
Unofficial Battlefield 4
3667 Yes Information Exchange
3671 Yes KNXnet/IP(EIBnet/IP)
3689 Yes Assigned Digital Audio Access Protocol (DAAP), used by Apple's iTunes and AirPlay[11]
3690 Yes Subversion (SVN)[11] version control system
3702 Yes Web Services Dynamic Discovery (WS-Discovery), used by various components of Windows Vista and later
3721 Unofficial ES File Explorer FTP server
3724 Yes Some Blizzard games[131]
Unofficial Club Penguin Disney online game for kids
3725 Yes Netia NA-ER Port
3749 Yes CimTrak[211] registered port
3768 Yes RBLcheckd server daemon
3784 Yes Bidirectional Forwarding Detection (BFD)for IPv4 and IPv6 (Single Hop) (RFC 5881)
3785 Unofficial VoIP program used by Ventrilo
3799 Yes RADIUS change of authorization
3804 Yes Harman Professional HiQnet protocol
3825 Unofficial RedSeal Networks client/server connection[citation needed]
3826 Yes WarMUX game server
Unofficial RedSeal Networks client/server connection[citation needed]
3835 Unofficial RedSeal Networks client/server connection[citation needed]
3830 Yes System Management Agent, developed and used by Cerner to monitor and manage solutions
3856 Unofficial ERP Server Application used by F10 Software
3880 Yes IGRS
3868 Yes Yes Diameter base protocol (RFC 3588)
3872 Yes Oracle Enterprise Manager Remote Agent
3900 Yes udt_os, IBM UniData UDT OS[212]
3960 Unofficial Warframe online interaction[citation needed]
3962 Unofficial Warframe online interaction[citation needed]
3978 Unofficial OpenTTD game (masterserver and content service)
3978 Unofficial Palo Alto Networks' Panorama management of firewalls and log collectors & pre-PAN-OS 8.0 Panorama-to-managed devices software updates.[213]
3979 Unofficial OpenTTD game
3999 Yes Norman distributed scanning service
4000 Unofficial Diablo II game
4001 Unofficial Microsoft Ants game
Unofficial CoreOS etcd client communication
4018 Yes Protocol information and warnings[clarification needed]
4035 Unofficial IBM Rational Developer for System z Remote System Explorer Daemon
4045 Unofficial Solaris lockd NFS lock daemon/manager
4050 Unofficial Mud Master Chat protocol (MMCP) – Peer-to-peer communications between MUD clients.[214]
4061 Yes Ice Location Service[215]
4069 Yes Minger Email Address Verification Protocol[216]
4070 Unofficial Amazon Echo Dot (Amazon Alexa) streaming connection with Spotify[217]
4089 Yes OpenCORE Remote Control Service
4090 Yes Kerio
4093 Yes PxPlus Client server interface ProvideX
4096 Yes Ascom Timeplex Bridge Relay Element (BRE)
4105 Yes Shofar (ShofarNexus)
4111 Yes Assigned Xgrid[11]
4116 Yes Smartcard-TLS
4123 Assigned Yes Z-Wave Protocol[218]
4125 Unofficial Microsoft Remote Web Workplace administration
4172 Yes Teradici PCoIP
4190 Yes ManageSieve[219]
4195 Yes AWS protocol for cloud remoting solution
4197 Yes Harman International's HControl protocol for control and monitoring of Audio, Video, Lighting and Control equipment
4198 Unofficial Couch Potato Android app[220]
4200 Unofficial Angular app
4201 Unofficial TinyMUD and various derivatives
4222 Unofficial NATS server default port[221]
4226 Unofficial Aleph One, a computer game
4242 Unofficial Orthanc – DICOM server[222]
Unofficial Quassel distributed IRC client
4243 Unofficial Docker implementations, redistributions, and setups default[223][needs update?]
Unofficial CrashPlan
4244 Unofficial Viber[224]
4303 Yes Simple Railroad Command Protocol (SRCP)
4307 Yes TrueConf Client – TrueConf Server media data exchange[225]
4321 Yes Referral Whois (RWhois) Protocol[226]
4433 Unofficial SaltoSystems - DTLS Based Communication for NCoder
4444 Unofficial Oracle WebCenter Content: Content Server—Intradoc Socket port. (formerly known as Oracle Universal Content Management).
Unofficial Metasploit's default listener port[227]
Unofficial Xvfb X server virtual frame buffer service
Unofficial OpenOCD (Telnet)[200]
4444–4445 Unofficial I2P HTTP/S proxy
4455 Unofficial OBS Studio built-in WebSocket plugin default port
4460 Yes Assigned Network Time Security Key Establishment (NTS)[228][229]
4486 Yes Integrated Client Message Service (ICMS)
4488 Yes Assigned Apple Wide Area Connectivity Service, used by Back to My Mac[11]
4500 Assigned Yes IPSec NAT Traversal[11] (RFC 3947, RFC 4306)
4502–4534 Yes Microsoft Silverlight connectable ports under non-elevated trust
4505–4506 Unofficial Salt master
4534 Unofficial Armagetron Advanced server default
4560 Unofficial default Log4j socketappender port
4567 Unofficial Sinatra default server port in development mode (HTTP)
4569 Yes Inter-Asterisk eXchange (IAX2)
4604 Yes Identity Registration Protocol
4605 Yes Direct End to End Secure Chat Protocol
4610–4640 Unofficial QualiSystems TestShell Suite Services
4662 Yes OrbitNet Message Service
Unofficial Default for older versions of eMule[230]
4664 Unofficial Google Desktop Search
4672 Unofficial Default for older versions of eMule[230]
4711 Unofficial eMule optional web interface[230]
4713 Unofficial PulseAudio sound server
4723 Unofficial Appium open source automation tool
4724 Unofficial Default bootstrap port to use on device to talk to Appium
4728 Yes Computer Associates Desktop and Server Management (DMP)/Port Multiplexer[231]
4730 Yes Gearman's job server
4739 Yes IP Flow Information Export
4747 Unofficial Apprentice
4753 Yes SIMON (service and discovery)
4789 Yes Virtual eXtensible Local Area Network (VXLAN)
4791 Yes IP Routable RocE (RoCEv2)
4840 Yes OPC UA Connection Protocol (TCP) and OPC UA Multicast Datagram Protocol (UDP) for OPC Unified Architecture from OPC Foundation
4843 Yes OPC UA TCP Protocol over TLS/SSL for OPC Unified Architecture from OPC Foundation
4847 Yes Web Fresh Communication, Quadrion Software & Odorless Entertainment
4848 Unofficial Java GlassFish Application Server administration default
4894 Yes LysKOM Protocol A[232]
4944 No Unofficial DrayTek DSL Status Monitoring[233]
4949 Yes Munin Resource Monitoring Tool
4950 Yes Cylon Controls UC32 Communications Port
5000 Unofficial UPnP—Windows network device interoperability
Unofficial VTun, VPN Software
Unofficial ASP.NET Core — Development Webserver
Unofficial FlightGear multiplayer[234]
Unofficial Synology Inc. Management Console, File Station, Audio Station
Unofficial Flask Development Webserver
Unofficial Heroku console access
Unofficial Docker Registry[235]
Unofficial AT&T U-verse public, educational, and government access (PEG) streaming over HTTP[236]
Unofficial High-Speed SECS Message Services[citation needed]
Unofficial 3CX Phone System Management Console/Web Client (HTTP)
Unofficial RidgeRun GStreamer Daemon (GSTD) [237]
Unofficial Apple's AirPlay Receiver[238]
Unofficial AWS Elastic Beanstalk Proxy server[239]
5000–5500 No Unofficial League of Legends, a multiplayer online battle arena video game[240]
5001 Unofficial Slingbox and Slingplayer
Unofficial Iperf (Tool for measuring TCP and UDP bandwidth performance)
Unofficial Synology Inc. Secured Management Console, File Station, Audio Station
Unofficial 3CX Phone System Management Console/Web Client (HTTPS)
5002 Unofficial ASSA ARX access control system[241]
5003 Yes Assigned FileMaker – name binding and transport[11]
5004 Yes Yes Real-time Transport Protocol media data (RTP) (RFC 3551, RFC 4571)
5005 Yes Yes Real-time Transport Protocol control protocol (RTCP) (RFC 3551, RFC 4571)
5007 Unofficial Palo Alto Networks – User-ID agent
5010 Yes Registered to: TelePath (the IBM FlowMark workflow-management system messaging platform)[242]
The TCP port is now used for: IBM WebSphere MQ Workflow
5011 Yes TelePath (the IBM FlowMark workflow-management system messaging platform)[242]
5022 Unofficial MSSQL Server Replication and Database mirroring endpoints[243]
5025 Yes scpi-raw Standard Commands for Programmable Instruments
5029 Unofficial Sonic Robo Blast 2 and Sonic Robo Blast 2 Kart servers
5031 Unofficial AVM CAPI-over-TCP (ISDN over Ethernet tunneling)[citation needed]
5037 Unofficial Android ADB server
5044 Yes Standard port in Filebeats/Logstash implementation of Lumberjack protocol.
5048 Yes Texai Message Service
5050 Unofficial Yahoo! Messenger
5051 Yes ita-agent Symantec Intruder Alert[244]
5060 Yes Session Initiation Protocol (SIP)[11]
5061 Yes[245] Session Initiation Protocol (SIP) over TLS
5062 Yes Localisation access
5064 Yes EPICS Channel Access server[246]
5065 Assigned Yes EPICS Channel Access repeater beacon[246]
5070 Unofficial No Binary Floor Control Protocol (BFCP)[247]
5075 Yes No EPICS PV Access Data[248][249]
5076 No Yes EPICS PV Access Searches[248][249]
5080 Unofficial NEC Phone System SV8100 and SV9100 MLC phones: default iSIP port
5084 Yes EPCglobal Low Level Reader Protocol (LLRP)
5085 Yes EPCglobal Low Level Reader Protocol (LLRP) over TLS
5090 Unofficial 3CX Phone System 3CX Tunnel Protocol, 3CX App API, 3CX Session Border Controller
5093 Yes SafeNet, Inc Sentinel LM, Sentinel RMS, License Manager, client-to-server
5099 Yes SafeNet, Inc Sentinel LM, Sentinel RMS, License Manager, server-to-server
5104 Unofficial IBM Tivoli Framework NetCOOL/Impact[250] HTTP Service
5121 Unofficial Neverwinter Nights
5150 Yes ATMP Ascend Tunnel Management Protocol[251]
5151 Yes ESRI SDE Instance
Yes ESRI SDE Remote Start
5154 Yes BZFlag
5172 Yes PC over IP Endpoint Management[252]
5173 Unofficial Vite[253]
5190 Yes AOL Instant Messenger protocol.[11] The chat app is defunct as of 15 December 2017.[254]
5198 Unofficial EchoLink VoIP Amateur Radio Software (Voice)
5199 Unofficial EchoLink VoIP Amateur Radio Software (Voice)
5200 Unofficial EchoLink VoIP Amateur Radio Software (Information)
5201 Unofficial Iperf3 (Tool for measuring TCP and UDP bandwidth performance)
5222 Yes Reserved Extensible Messaging and Presence Protocol (XMPP) client connection[11][255][256]
5223 Unofficial Apple Push Notification Service[11][166]
Unofficial Extensible Messaging and Presence Protocol (XMPP) client connection over SSL
5228 Yes HP Virtual Room Service
Unofficial Google Play, Android Cloud to Device Messaging Service, Google Cloud Messaging
5231 Yes Remote Control of Scan Software for Cruse Scanners[257]
5232 Yes Cruse Scanning System Service[258]
Unofficial Silicon Graphics Distributed Graphics Library daemon (dgld)[259][260][261]
5235–5236 Unofficial Firebase Cloud Messaging[262]
5242 Unofficial Viber[224]
5243 Unofficial Viber[224]
5246 Yes Control And Provisioning of Wireless Access Points (CAPWAP) CAPWAP control[263]
5247 Yes Control And Provisioning of Wireless Access Points (CAPWAP) CAPWAP data[263]
5269 Yes Extensible Messaging and Presence Protocol (XMPP) server-to-server connection[11][255][256]
5280 Yes Extensible Messaging and Presence Protocol (XMPP)[264]
5281 Unofficial Extensible Messaging and Presence Protocol (XMPP)[265]
5298 Yes Extensible Messaging and Presence Protocol (XMPP)[266]
5310 Assigned Yes Outlaws, a 1997 first-person shooter video game[267]
5318 Yes Reserved Certificate Management over CMS[268]
5349 Yes STUN over TLS/DTLS, a protocol for NAT traversal[202]
Yes TURN over TLS/DTLS, a protocol for NAT traversal[203]
Yes Reserved STUN Behavior Discovery over TLS.[204] See also port 3478.
5351 Reserved Yes NAT Port Mapping Protocol and Port Control Protocol—client-requested configuration for connections through network address translators and firewalls
5353 Assigned Yes Multicast DNS (mDNS)[11]
5355 Yes Link-Local Multicast Name Resolution (LLMNR), allows hosts to perform name resolution for hosts on the same local link (only provided by Windows Vista and Server 2008)
5357 Unofficial Web Services for Devices (WSDAPI) (starting from Windows Vista, Windows 7 and Server 2008)
5358 Unofficial WSDAPI Applications to Use a Secure Channel (only provided by Windows Vista, Windows 7 and Server 2008)
5394 Unofficial Kega Fusion, a Sega multi-console emulator[269][270]
5402 Yes Multicast File Transfer Protocol (MFTP)[271][importance?]
5405 Yes NetSupport Manager
5412 Yes IBM Rational Synergy (Telelogic Synergy) (Continuus CM) Message Router
5413 Yes Wonderware SuiteLink service
5417 Yes SNS Agent
5421 Yes NetSupport Manager
5432 Yes Assigned PostgreSQL[11] database system
5433 Unofficial Bouwsoft file/webserver[272]
5445 Unofficial Cisco Unified Video Advantage[citation needed]
5450 Unofficial OSIsoft PI Server Client Access [273]
5457 Unofficial OSIsoft PI Asset Framework Client Access [274]
5458 Unofficial OSIsoft PI Notifications Client Access [275]
5480 Unofficial VMware VAMI (Virtual Appliance Management Infrastructure)—used for initial setup of various administration settings on Virtual Appliances designed using the VAMI architecture.
5481 Unofficial Schneider Electric's ClearSCADA (SCADA implementation for Windows) — used for client-to-server communication.[276]
5495 Unofficial IBM Cognos TM1 Admin server
5498 Unofficial Hotline tracker server connection
5499 Unofficial Hotline tracker server discovery
5500 Unofficial Hotline control connection
Unofficial VNC Remote Frame Buffer RFB protocol—for incoming listening viewer
5501 Unofficial Hotline file transfer connection
5517 Unofficial Setiqueue Proxy server client for SETI@Home project
5550 Unofficial Hewlett-Packard Data Protector[citation needed]
5554 Unofficial Fastboot default wireless port
5555 Unofficial Oracle WebCenter Content: Inbound Refinery—Intradoc Socket port. (formerly known as Oracle Universal Content Management). Port though often changed during installation
Unofficial Freeciv versions up to 2.0, Hewlett-Packard Data Protector, McAfee EndPoint Encryption Database Server, SAP, Default for Microsoft Dynamics CRM 4.0, Softether VPN default port
Unofficial Wireless adb (Android Debug Bridge) control of an Android device over the network.
5556 Yes Freeciv, Oracle WebLogic Server Node Manager[277]
5568 Yes Session Data Transport (SDT), a part of Architecture for Control Networks (ACN)[278][full citation needed]
5601 Unofficial Kibana[279]
5631 Yes pcANYWHEREdata, Symantec pcAnywhere (version 7.52 and later[280])[281] data
5632 Yes pcANYWHEREstat, Symantec pcAnywhere (version 7.52 and later) status
5656 Unofficial IBM Lotus Sametime p2p file transfer
5666 Unofficial NRPE (Nagios)
5667 Unofficial NSCA (Nagios)
5670 Yes FILEMQ ZeroMQ File Message Queuing Protocol
Yes ZRE-DISC ZeroMQ Realtime Exchange Protocol (Discovery)
5671 Yes Assigned Advanced Message Queuing Protocol (AMQP)[282] over TLS
5672 Yes Assigned Yes Advanced Message Queuing Protocol (AMQP)[282]
5678 Unofficial No n8n[283]
No Yes MikroTik Neighbor Discovery Protocol[284][285]
5683 Yes Constrained Application Protocol (CoAP)
5684 Yes Constrained Application Protocol Secure (CoAPs)
5693 Unofficial Nagios Cross Platform Agent (NCPA)[286]
5701 Unofficial Hazelcast default communication port[287]
5718 Unofficial Microsoft DPM Data Channel (with the agent coordinator)
5719 Unofficial Microsoft DPM Data Channel (with the protection agent)
5722 Yes Microsoft RPC, DFSR (SYSVOL) Replication Service[citation needed]
5723 Unofficial System Center Operations Manager[288]
5724 Unofficial Operations Manager Console
5741 Yes IDA Discover Port 1
5742 Yes IDA Discover Port 2
5800 Unofficial VNC Remote Frame Buffer RFB protocol over HTTP
Unofficial ProjectWise Server[289]
5900 Yes Remote Frame Buffer protocol (RFB)
Unofficial Virtual Network Computing (VNC) Remote Frame Buffer RFB protocol[11][290]
5905 Unofficial Windows service "C:\Program Files\Intel\Intel(R) Online Connect Access\IntelTechnologyAccessService.exe" that listens on 127.0.0.1
5931 Yes AMMYY admin Remote Control
5938 Unofficial TeamViewer remote desktop protocol[291]
5984 Yes CouchDB database server
5985 Yes Windows PowerShell Default psSession Port[292] Windows Remote Management Service (WinRM-HTTP)[293]
5986 Yes Windows PowerShell Default psSession Port[292] Windows Remote Management Service (WinRM-HTTPS)[293]
5988–5989 Yes CIM-XML (DMTF Protocol)[294]
6000–6063 Yes X11—used between an X client and server over the network
6005 Unofficial Default for BMC Software Control-M/Server—Socket used for communication between Control-M processes—though often changed during installation
Unofficial Default for Camfrog chat & cam client
6009 Unofficial JD Edwards EnterpriseOne ERP system JDENet messaging client listener
6024-6025 Unofficial Tigermeeting Android client discovery[295]
6026 Unofficial Tigermeeting client/server communication[295]
6030-6031 Unofficial Tigermeeting Admin user discovery[295]
6050 Unofficial Arcserve backup
6051 Unofficial Arcserve backup
6081 Yes Generic Network Virtualization Encapsulation (Geneve)[296]
6086 Yes Peer Distributed Transfer Protocol (PDTP), FTP like file server in a P2P network
6100 Unofficial Vizrt System
Unofficial Ventrilo authentication for version 3
6101 Unofficial Backup Exec Agent Browser[citation needed]
6110 Yes softcm, HP Softbench CM
6111 Yes spc, HP Softbench Sub-Process Control
6112 Yes dtspcd, execute commands and launch applications remotely
Unofficial Blizzard's Battle.net gaming service and some games,[131] ArenaNet gaming service, Relic gaming service
Unofficial Club Penguin Disney online game for kids
6113 Unofficial Club Penguin Disney online game for kids, Used by some Blizzard games[131]
6136 Unofficial ObjectDB database server[297]
6159 Yes ARINC 840 EFB Application Control Interface
6160 Unofficial Veeam Installer Service
6161 Unofficial Veeam vPower NFS Service
6162 Unofficial Veeam Data Mover
6163 Unofficial Veeam Hyper-V Integration Service
6164 Unofficial Veeam WAN Accelerator
6165 Unofficial Veeam WAN Accelerator Data Transfer
6167 Unofficial Veeam Log Shipping Service
6170 Unofficial Veeam Mount Server
6200 Unofficial Oracle WebCenter Content Portable: Content Server (With Native UI) and Inbound Refinery
6201 Assigned Thermo-Calc Software AB: Management of service nodes in a processing grid for thermodynamic calculations
Unofficial Oracle WebCenter Content Portable: Admin
6225 Unofficial Oracle WebCenter Content Portable: Content Server Web UI
6227 Unofficial Oracle WebCenter Content Portable: JavaDB
6240 Unofficial Oracle WebCenter Content Portable: Capture
6244 Unofficial Oracle WebCenter Content Portable: Content Server—Intradoc Socket port
6255 Unofficial Oracle WebCenter Content Portable: Inbound Refinery—Intradoc Socket port
6257 Unofficial WinMX (see also 6699)
6260 Unofficial planet M.U.L.E.
6262 Unofficial Sybase Advantage Database Server
6343 Yes SFlow, sFlow traffic monitoring
6346 Yes gnutella-svc, gnutella (FrostWire, Limewire, Shareaza, etc.)
6347 Yes gnutella-rtr, Gnutella alternate
6350 Yes App Discovery and Access Protocol
6379 Yes Redis key-value data store
6389 Unofficial EMC CLARiiON
6432 Yes PgBouncer—A connection pooler for PostgreSQL
6436 Unofficial Leap Motion Websocket Server TLS
6437 Unofficial Leap Motion Websocket Server
6443 Yes Kubernetes API server [298]
6444 Yes Sun Grid Engine Qmaster Service
6445 Yes Sun Grid Engine Execution Service
6454 Unofficial Art-Net protocol
6463–6472 Unofficial Discord RPC[299]
6464 Yes Port assignment for medical device communication in accordance to IEEE 11073-20701
6513 Yes NETCONF over TLS
6514 Yes Syslog over TLS[300]
6515 Yes Elipse RPC Protocol (REC)
6516 Unofficial Windows Admin Center
6543 Unofficial Pylons project#Pyramid Default Pylons Pyramid web service port
6556 Unofficial Check MK Agent
6566 Yes SANE (Scanner Access Now Easy)—SANE network scanner daemon[301]
6560–6561 Unofficial Speech-Dispatcher daemon[citation needed]
6571 Unofficial Windows Live FolderShare client
6600 Yes Microsoft Hyper-V Live
Unofficial Music Player Daemon (MPD)
6601 Yes Microsoft Forefront Threat Management Gateway
6602 Yes Microsoft Windows WSS Communication
6619 Yes odette-ftps, Odette File Transfer Protocol (OFTP) over TLS/SSL
6622 Yes Multicast FTP
6626 Yes Semaphore Messenger
6653 Yes Assigned OpenFlow[302]
6660–6664 Unofficial Internet Relay Chat (IRC)
6665–6669 Yes Internet Relay Chat (IRC)
6679 Yes Osorno Automation Protocol (OSAUT)
Unofficial Internet Relay Chat (IRC) SSL (Secure Internet Relay Chat)—often used
6690 Unofficial Synology Cloud station
6697 Yes IRC SSL (Secure Internet Relay Chat)—often used
6699 Unofficial WinMX (see also 6257)
6715 Unofficial AberMUD and derivatives default port
6771 Unofficial BitTorrent Local Peer Discovery
6783–6785 Unofficial Splashtop Remote server broadcast
6801 Yes ACNET Control System Protocol
6881–6887 Unofficial BitTorrent beginning of range of ports used most often
6888 Yes MUSE
Unofficial BitTorrent continuation of range of ports used most often
6889–6890 Unofficial BitTorrent continuation of range of ports used most often
6891–6900 Unofficial BitTorrent continuation of range of ports used most often
6891–6900 Unofficial Windows Live Messenger (File transfer)
6901 Unofficial Windows Live Messenger (Voice)
Unofficial BitTorrent continuation of range of ports used most often
6902–6968 Unofficial BitTorrent continuation of range of ports used most often
6924 Yes split-ping, ping with RX/TX latency/loss split
6935 Yes EthoScan Service
6936 Yes XenSource Management Service
6969 Yes acmsoda
Unofficial BitTorrent tracker
6970–6999 Unofficial BitTorrent end of range of ports used most often
Unofficial QuickTime Streaming Server[11]
6980 Unofficial Voicemeeter VBAN network audio protocol[303]
7000 Unofficial Default for Vuze's built-in HTTPS Bittorrent tracker
Unofficial Avira Server Management Console
7001 Unofficial Avira Server Management Console
Unofficial Default for BEA WebLogic Server's HTTP server, though often changed during installation
7002 Unofficial Default for BEA WebLogic Server's HTTPS server, though often changed during installation
7005 Unofficial Default for BMC Software Control-M/Server and Control-M/Agent for Agent-to-Server, though often changed during installation
7006 Unofficial Default for BMC Software Control-M/Server and Control-M/Agent for Server-to-Agent, though often changed during installation
7010 Unofficial Default for Cisco AON AMC (AON Management Console)[304]
7022 Unofficial MSSQL Server Replication and Database mirroring endpoints[243]
7023 Yes Bryan Wilcutt T2-NMCS Protocol for SatCom Modems
7025 Unofficial Zimbra LMTP [mailbox]—local mail delivery
7047 Unofficial Zimbra conversion server
7070 Unofficial Real Time Streaming Protocol (RTSP), used by QuickTime Streaming Server. TCP is used by default, UDP is used as an alternate.[11]
7077 Yes Development-Network Authentification-Protocol
7133 Unofficial Enemy Territory: Quake Wars
7144 Unofficial Peercast[citation needed]
7145 Unofficial Peercast[citation needed]
7171 Unofficial Tibia
7262 Yes CNAP (Calypso Network Access Protocol)
7272 Yes WatchMe – WatchMe Monitoring
7306 Unofficial Zimbra mysql [mailbox][citation needed]
7307 Unofficial Zimbra mysql [logger][citation needed]
7312 Unofficial Sibelius License Server
7396 Unofficial Web control interface for Folding@home v7.3.6 and later[305]
7400 Yes RTPS (Real Time Publish Subscribe) DDS Discovery
7401 Yes RTPS (Real Time Publish Subscribe) DDS User-Traffic
7402 Yes RTPS (Real Time Publish Subscribe) DDS Meta-Traffic
7471 Unofficial Stateless Transport Tunneling (STT)
7473 Yes Rise: The Vieneo Province
7474 Yes Neo4J Server webadmin[306]
7478 Yes Default port used by Open iT Server.[307]
7542 Yes Saratoga file transfer protocol[308][309]
7547 Yes CPE WAN Management Protocol (CWMP) Technical Report 069
7575 Unofficial Populous: The Beginning server
7624 Yes Instrument Neutral Distributed Interface
7631 Yes ERLPhase
7634 Unofficial hddtemp—Utility to monitor hard drive temperature
7652–7654 Unofficial I2P anonymizing overlay network
7655 Unofficial I2P SAM Bridge Socket API
7656–7660 Unofficial I2P anonymizing overlay network
7659 Unofficial Polypheny User Interface (database system)
7670 Unofficial BrettspielWelt BSW Boardgame Portal
7680 Unofficial Delivery Optimization for Windows 10[310]
7687 Yes Bolt database connection
7707–7708 Unofficial Killing Floor
7717 Unofficial Killing Floor
7777 Unofficial iChat server file transfer proxy[11]
Unofficial Oracle Cluster File System 2[citation needed]
Unofficial Windows backdoor program tini.exe default[citation needed]
Unofficial Just Cause 2: Multiplayer Mod Server[citation needed]
Unofficial Terraria default server
Unofficial Unofficial Super Foosball multiplayer gameplay port
Unofficial San Andreas Multiplayer (SA-MP) default port server
Unofficial SCP: Secret Laboratory Multiplayer Server
7777–7788 Yes Steam common default game server ports (Ark, L4D2, etc.)[citation needed]
7777–7788 Unofficial Unreal Tournament series default server[citation needed]
7831 Unofficial Default used by Smartlaunch Internet Cafe Administration[311] software
7880 Yes PowerSchool Gradebook Server[2][312]
7890 Unofficial Default that will be used by the iControl Internet Cafe Suite Administration software
7915 Unofficial Default for YSFlight server[313]
7935 Unofficial Fixed port used for Adobe Flash Debug Player to communicate with a debugger (Flash IDE, Flex Builder or fdb).[314]
7946 Unofficial Docker Swarm communication among nodes[173]
7979 Unofficial Used by SilverBluff Studios for communication between servers and clients.[citation needed]
7990 Unofficial Atlassian Bitbucket (default port)[citation needed]
8000 Unofficial Commonly used for Internet radio streams such as SHOUTcast[citation needed], Icecast[315] and iTunes Radio[11]
Unofficial DynamoDB Local[316]
Unofficial Django Development Webserver[317]
Unofficial Python 3 http.server[318]
8005 Unofficial Tomcat remote shutdown[11]
Unofficial PLATO ASCII protocol (RFC 600)
Unofficial Windows SCCM HTTP listener service[319]
8006 Unofficial Quest AppAssure 5 API[320]
Unofficial No Proxmox Virtual Environment admin web interface[321]
8007 Unofficial Quest AppAssure 5 Engine[320]
8007 Yes Proxmox Backup Server admin web interface
8008 Unofficial Alternative port for HTTP. See also ports 80 and 8080.
Unofficial IBM HTTP Server administration default[importance?]
Unofficial iCal, a calendar application by Apple[11]
Unofficial No Matrix homeserver federation over HTTP[322]
8009 Unofficial Apache JServ Protocol (ajp13)[citation needed]
8010 Unofficial No Buildbot web status page[citation needed]
8042 Unofficial Orthanc – REST API over HTTP[222]
8061 Yes Reserved Nikatron Device Protocol (nikatron-dev)
8069 Unofficial OpenERP 5.0 XML-RPC protocol[323]
8070 Unofficial OpenERP 5.0 NET-RPC protocol[323]
8074 Yes Gadu-Gadu
8075 Unofficial Killing Floor web administration interface[citation needed]
8080 Yes Alternative port for HTTP. See also ports 80 and 8008.
Unofficial Apache Tomcat[324]
Unofficial Atlassian JIRA applications[325]
8081 Yes Sun Proxy Admin Service[326]
8088 Unofficial Asterisk management access via HTTP[citation needed]
Unofficial YARN ResourceManager Web UI[327]
8089 Unofficial No Splunk daemon management[328]
Unofficial Fritz!Box automatic TR-069 configuration[329]
8090 Unofficial Atlassian Confluence[330]
Unofficial Coral Content Distribution Network (legacy; 80 and 8080 now supported)[331]
Unofficial Matrix identity server[citation needed]
8091 Unofficial CouchBase web administration[332]
8092 Unofficial CouchBase API[332]
8096 Unofficial Emby and Jellyfin HTTP port[333]
8100 Unofficial SaltoSystems - Pro Access Space Service
Unofficial BlueMap, a 3D Minecraft web viewer and mapping tool
8102 Unofficial SaltoSystems - Used for LocalIO-Bridge for USB-Devices
8111 Unofficial JOSM Remote Control
8112 Unofficial PAC Pacifica Coin
8116 Unofficial Check Point Cluster Control Protocol
8118 Yes Privoxy—advertisement-filtering Web proxy
8123 Unofficial Polipo Web proxy
Unofficial Home Assistant Home automation
Unofficial Minecraft Dynmap plugin/mod
8124 Unofficial
8125 Unofficial StatsD server[334][335][336]
8139 Unofficial Puppet (software) Client agent
8140 Yes Puppet (software) Master server
8172 Unofficial Microsoft Remote Administration for IIS Manager[337]
8181–8186 Unofficial FRITZ!Box services
8184 Unofficial NCSA Brown Dog Data Access Proxy
8194–8195 Yes Bloomberg Terminal[338]
8200 Unofficial GoToMyPC
Unofficial MiniDLNA media server Web Interface
Unofficial Elastic APM Server
8222 Unofficial VMware VI Web Access via HTTP[339]
8236 Unofficial jRCS listener for Rocket Software jBASE Remote Connectivity Server[340]
8243 Yes HTTPS listener for Apache Synapse[341]
8245 Unofficial Dynamic DNS for at least No-IP and DynDNS[342]
8280 Yes HTTP listener for Apache Synapse[341]
8281 Unofficial HTTP Listener for Gatecraft Plugin
8291 Unofficial Winbox—Default on a MikroTik RouterOS for a Windows application used to administer MikroTik RouterOS[343]
8303 Unofficial Teeworlds Server
8332 Unofficial Bitcoin JSON-RPC server[344]
8333 Unofficial Bitcoin[345]
Unofficial VMware VI Web Access via HTTPS[339]
8334 Unofficial Filestash server (default) [346]
8337 Unofficial VisualSVN Distributed File System Service (VDFS)[347]
8384 Unofficial Syncthing web GUI
8388 Unofficial Shadowsocks proxy server[citation needed]
8400 Yes Commvault Communications Service[348] (GxCVD, found in all client computers)
8401 Yes Commvault Server Event Manager (GxEvMgrS, available in CommServe)
8403 Yes Commvault Firewall (GxFWD, tunnel port for HTTP/HTTPS)
8443 Unofficial SW Soft Plesk Control Panel
Unofficial Apache Tomcat SSL
Unofficial Promise WebPAM SSL
Unofficial iCal over SSL[11]
Unofficial MineOs WebUi
8444 Unofficial Bitmessage
Unofficial Chia[349]
8448 Yes Matrix homeserver federation over HTTPS[322]
8484 Unofficial MapleStory Login Server
8500 Unofficial Adobe ColdFusion built-in web server[350]
8501 Unofficial Streamlit Open-source Python framework for machine learning and data science
8530 Unofficial Windows Server Update Services over HTTP, when using the default role installation settings in Windows Server 2012 and later versions.[351][352]
8531 Unofficial Windows Server Update Services over HTTPS, when using the default role installation settings in Windows Server 2012 and later versions.[351][352]
8555 Unofficial Symantec DLP OCR Engine [353]
Unofficial Chia JSON-RPC server[354]
8580 Unofficial Freegate, an Internet anonymizer and proxy tool[355]
8601 Unofficial Wavestore VMS protocol [356]
8611–8614 Yes Canon BubbleJet Network Protocol [357]
8629 Unofficial Tibero database[citation needed]
8642 Unofficial Lotus Notes Traveler auto synchronization for Windows Mobile and Nokia devices[358]
8691 Unofficial Ultra Fractal, a fractal generation and rendering software application – distributed calculations over networked computers[359][360]
8765 Unofficial No Default port of a local GUN relay peer that the Internet Archive[361] and others use as a decentralized mirror for censorship resistance.[362]
8767 Unofficial Voice channel of TeamSpeak 2,[363] a proprietary Voice over IP protocol targeted at gamers[citation needed]
8834 Unofficial Nessus, a vulnerability scanner – remote XML-RPC web server[364][third-party source needed]
8840 Unofficial Opera Unite, an extensible framework for web applications[365][366]
8880 Yes Alternate port of CDDB (Compact Disc Database) protocol, used to look up audio CD (compact disc) information over the Internet.[367] See also port 888.
Unofficial IBM WebSphere Application Server SOAP connector[368][jargon]
8883 Yes Secure MQTT (MQTT over TLS)[369][370]
8887 Unofficial HyperVM over HTTP[citation needed]
8888 Unofficial HyperVM over HTTPS[citation needed]
Unofficial No Freenet web UI (localhost only) [citation needed]
Unofficial Default for IPython[371] / Jupyter[372] notebook dashboards
Unofficial MAMP[373]
8889 Unofficial MAMP[373]
8920 Unofficial Jellyfin HTTPS port[333]
8983 Unofficial Apache Solr[374]
8997 Unofficial Alternate port for I2P Monotone Proxy[187][jargon]
8998 Unofficial I2P Monotone Proxy[187][jargon]
8999 Unofficial Alternate port for I2P Monotone Proxy[187][jargon]
9000 Unofficial SonarQube Web Server[375]
Unofficial ClickHouse default port
Unofficial DBGp
Unofficial SqueezeCenter web server & streaming
Unofficial UDPCast
Unofficial Play Framework web server[376]
Unofficial Hadoop NameNode default port
Unofficial PHP-FPM default port
Unofficial QBittorrent's embedded torrent tracker default port[377]
Unofficial Emidate
9001 Yes ETL Service Manager[378]
Unofficial Microsoft SharePoint authoring environment
Unofficial cisco-xremote router configuration[citation needed]
Unofficial Tor network default (ORPort)
Unofficial DBGp Proxy
Unofficial HSQLDB default port
Unofficial Emidate
9002 Unofficial Newforma Server comms
Unofficial Emidate
9003 Unofficial Xdebug default client port[379]
9006 Unofficial Tomcat in standalone mode[11]
9008 Unofficial Zerto VRA encrypted communications listener
9030 Unofficial Tor network default (DirPort)
9042 Unofficial Apache Cassandra native protocol clients
9043 Unofficial WebSphere Application Server Administration Console secure
9050–9051 Unofficial Tor (SOCKS-5 proxy)
9060 Unofficial WebSphere Application Server Administration Console
9080 Yes glrpc, Groove Collaboration software GLRPC
Unofficial WebSphere Application Server HTTP Transport (port 1) default
Unofficial Remote Potato by FatAttitude, Windows Media Center addon
Unofficial ServerWMC, Windows Media Center addon
9081 Unofficial Zerto ZVM to ZVM communication
9090 Unofficial Prometheus metrics server
Unofficial Openfire Administration Console
Unofficial SqueezeCenter control (CLI)
Unofficial Cherokee Admin Panel
9091 Unofficial Openfire Administration Console (SSL Secured)
Unofficial Transmission (BitTorrent client) Web Interface
9092 Unofficial H2 (DBMS) Database Server
Unofficial Apache Kafka A Distributed Streaming Platform[380]
9095 Unofficial Networker Web User Interface Server
9100 Yes Assigned PDL Data Stream, used for printing to certain network printers[11]
9101 Yes Bacula Director
9102 Yes Bacula File Daemon
9103 Yes Bacula Storage Daemon
9116 Unofficial SNMP-exporter (Prometheus)[381]
9119 Yes MXit Instant Messenger
9150 Unofficial Tor Browser
9191 Unofficial Sierra Wireless Airlink
9199 Unofficial Avtex LLC—qStats
9200 Unofficial Elasticsearch[382]—default Elasticsearch port
9217 Unofficial iPass Platform Service
9229 Unofficial NodeJS debugging default port (localhost)[383]
9293 Unofficial Sony PlayStation RemotePlay[384]
9295 Unofficial Sony PlayStation Remote Play Session creation communication port
9296 Unofficial Sony PlayStation Remote Play
9297 Unofficial Sony PlayStation Remote Play Video stream
9300 Unofficial IBM Cognos BI[385]
9303 Unofficial D-Link Shareport Share storage and MFP printers[citation needed]
9306 Yes Sphinx Native API
9309 Unofficial Sony PlayStation Vita Host Collaboration WiFi Data Transfer[386]
9312 Yes Sphinx SphinxQL
9332 Unofficial Litecoin JSON-RPC server
9333 Unofficial Litecoin
9339 Unofficial Used by all Supercell games such as Brawl Stars and Clash of Clans, mobile freemium strategy video games
9389 Yes adws, Microsoft AD DS Web Services, Powershell uses this port
9392 Unofficial No OpenVAS Greenbone Security Assistant web interface
9418 Yes git, Git pack transfer service
9419 Unofficial MooseFS distributed file system – master control port[387]
9420 Unofficial MooseFS distributed file system – master command port[387]
9421 Unofficial MooseFS distributed file system – master client port[387]
9422 Unofficial MooseFS distributed file system – Chunkservers[387]
9425 Unofficial MooseFS distributed file system – CGI server[387]
9443 Unofficial VMware Websense Triton console (HTTPS port used for accessing and administrating a vCenter Server via the Web Management Interface)
Unofficial NCSA Brown Dog Data Tilling Service
9535 Yes mngsuite, LANDesk Management Suite Remote Control
9536 Yes laes-bf, IP Fabrics Surveillance buffering function
9600 No Unofficial Factory Interface Network Service (FINS), a network protocol used by Omron programmable logic controllers[citation needed]
9669 Unofficial No VGG Image Search Engine VISE[388]
9675 Unofficial Spiceworks Desktop, IT Helpdesk Software
9676 Unofficial Spiceworks Desktop, IT Helpdesk Software
9695 Yes Content centric networking (CCN, CCNx)[citation needed]
9735 Unofficial Bitcoin Lightning Network[389]
9785 Unofficial Viber[224]
9800 Yes WebDAV Source
Unofficial WebCT e-learning portal
9875 Unofficial Club Penguin Disney online game for kids
9876 Unofficial V Rising Dedicated server[390]
9877 Unofficial V Rising Dedicated server[390]
9898 Unofficial Tripwire—File Integrity Monitoring Software[391]
9899 Yes SCTP tunneling (port number used in SCTP packets encapsulated in UDP, RFC 6951)
9901 Unofficial Banana for Apache Solr
9981 Unofficial Tvheadend HTTP server (web interface)[392]
9982 Unofficial Tvheadend HTSP server (Streaming protocol)[392]
9987 Unofficial No TeamSpeak 3 server default (voice) port (for the conflicting service see the IANA list)[393]
9993 Unofficial ZeroTier Default port for ZeroTier
9997 Unofficial Splunk port for communication between the forwarders and indexers
9999 Unofficial Urchin Web Analytics[citation needed]
Unofficial Dash (cryptocurrency)[394]
10000 Yes Network Data Management Protocol (NDMP) Control stream for network backup and restore.
Unofficial BackupExec
Unofficial Webmin, Web-based Unix/Linux system administration tool (default port)
10000–20000 No Unofficial Used on VoIP networks for receiving and transmitting voice telephony traffic which includes Google Voice via the OBiTalk ATA devices as well as on the MagicJack and Vonage ATA network devices.[395]
10001 Unofficial Ubiquiti UniFi access points broadcast to 255.255.255.255:10001 (UDP) to locate the controller(s)
10009 Unofficial Crossfire, a multiplayer online First Person Shooter[citation needed]
10011 Unofficial No TeamSpeak 3 ServerQuery[393]
10022 Unofficial No TeamSpeak 3 ServerQuery over SSH
10024 Unofficial Zimbra smtp [mta]—to amavis from postfix[citation needed]
10025 Unofficial Zimbra smtp [mta]—back to postfix from amavis[citation needed]
10042 Unofficial Mathoid server [396]
10050 Yes Zabbix agent
10051 Yes Zabbix trapper
10110 Yes NMEA 0183 Navigational Data. Transport of NMEA 0183 sentences over TCP or UDP
10172 Unofficial Intuit Quickbooks client
10200 Unofficial FRISK Software International's fpscand virus scanning daemon for Unix platforms[397]
Unofficial FRISK Software International's f-protd virus scanning daemon for Unix platforms[398]
10201–10204 Unofficial FRISK Software International's f-protd virus scanning daemon for Unix platforms[398]
10212 Yes GE Intelligent Platforms Proficy HMI/SCADA – CIMPLICITY WebView[399]
10308 Unofficial Digital Combat Simulator Dedicated Server [400]
10346 No TEKWorx Limited – interfaceIT board protocol
10468 Unofficial Flyer – discovery protocol[citation needed]
10480 Unofficial SWAT 4 Dedicated Server[citation needed]
10505 Unofficial BlueStacks (android simulator) broadcast[401]
10514 Unofficial TLS-enabled Rsyslog (default by convention)
10578 Unofficial No Skyrim Together multiplayer server for The Elder Scrolls V: Skyrim mod.
10800 Unofficial Touhou fight games (Immaterial and Missing Power, Scarlet Weather Rhapsody, Hisoutensoku, Hopeless Masquerade and Urban Legend in Limbo)
10801 Unofficial Bag With Friends multiplayer server for the Peaks of Yore mod.
10823 Unofficial Farming Simulator 2011[citation needed]
10891 Unofficial Jungle Disk (this port is opened by the Jungle Disk Monitor service on the localhost)[citation needed]
10933 Yes No Octopus Deploy Tentacle deployment agent[402]
11100 No Unofficial Risk of Rain multiplayer server
11111 Unofficial RiCcI, Remote Configuration Interface (Redhat Linux)
11112 Yes ACR/NEMA Digital Imaging and Communications in Medicine (DICOM)
11211 Unofficial memcached[11]
11214 Unofficial memcached incoming SSL proxy
11215 Unofficial memcached internal outgoing SSL proxy
11235 Yes XCOMPUTE numerical systems messaging (Xplicit Computing)[403]
11311 Unofficial Robot Operating System master
11371 Yes OpenPGP HTTP key server
11753 Unofficial OpenRCT2 multiplayer[404]
12000 Unofficial CubeForm, Multiplayer SandBox Game
12012 Unofficial Audition Online Dance Battle, Korea Server—Status/Version Check
12013 Unofficial Audition Online Dance Battle, Korea Server
12035 Unofficial Second Life, used for server UDP in-bound[405]
12043 Unofficial Second Life, used for LSL HTTPS in-bound[406]
12046 Unofficial Second Life, used for LSL HTTP in-bound[406]
12201 Unofficial Graylog Extended Log Format (GELF)[407][importance?]
12222 Yes Light Weight Access Point Protocol (LWAPP) LWAPP data (RFC 5412)
12223 Yes Light Weight Access Point Protocol (LWAPP) LWAPP control (RFC 5412)
12307 Unofficial Makerbot UDP Broadcast (client to printer) (JSON-RPC)[408]
12308 Unofficial Makerbot UDP Broadcast (printer to client) (JSON-RPC)[408]
12345 Unofficial Cube World[409]
Unofficial Little Fighter 2
Unofficial NetBus remote administration tool (often Trojan horse).
12443 Unofficial IBM HMC web browser management access over HTTPS instead of default port 443[410]
12489 Unofficial NSClient/NSClient++/NC_Net (Nagios)
12975 Unofficial LogMeIn Hamachi (VPN tunnel software; also port 32976)—used to connect to Mediation Server (bibi.hamachi.cc); will attempt to use SSL (TCP port 443) if both 12975 & 32976 fail to connect
13000–13050 Unofficial Second Life, used for server UDP in-bound[411]
13008 Unofficial Crossfire, a multiplayer online First Person Shooter[citation needed]
13075 Yes Default[412] for BMC Software Control-M/Enterprise Manager Corba communication, though often changed during installation
13400 Yes ISO 13400 Road vehicles — Diagnostic communication over Internet Protocol (DoIP)
13720 Yes Symantec NetBackup—bprd (formerly VERITAS)
13721 Yes Symantec NetBackup—bpdbm (formerly VERITAS)
13724 Yes Symantec Network Utility—vnetd (formerly VERITAS)
13782 Yes Symantec NetBackup—bpcd (formerly VERITAS)
13783 Yes Symantec VOPIED protocol (formerly VERITAS)
13785 Yes Symantec NetBackup Database—nbdb (formerly VERITAS)
13786 Yes Symantec nomdb (formerly VERITAS)
14550 Unofficial MAVLink Ground Station Port
14567 Unofficial Battlefield 1942 and mods
14652 Unofficial Repgen DoxBox reporting tool
14800 Unofficial Age of Wonders III p2p port[413]
15000 Unofficial psyBNC
Unofficial Wesnoth
Unofficial Kaspersky Network Agent[414]
Unofficial Teltonika networks remote management system (RMS)
15009 Unofficial Teltonika networks remote management system (RMS)
15010 Unofficial Teltonika networks remote management system (RMS)
15441 Unofficial ZeroNet fileserver[citation needed]
15567 Unofficial Battlefield Vietnam and mods
15345 Yes XPilot Contact
15672 Unofficial No RabbitMQ management plugin[415]
16000 Unofficial Oracle WebCenter Content: Imaging (formerly known as Oracle Universal Content Management). Port though often changed during installation
Unofficial shroudBNC
16080 Unofficial macOS Server Web (HTTP) service with performance cache[416]
16200 Unofficial Oracle WebCenter Content: Content Server (formerly known as Oracle Universal Content Management). Port though often changed during installation
16225 Unofficial Oracle WebCenter Content: Content Server Web UI. Port though often changed during installation
16250 Unofficial Oracle WebCenter Content: Inbound Refinery (formerly known as Oracle Universal Content Management). Port though often changed during installation
16261 Unofficial Project Zomboid multiplayer. Additional sequential ports used for each player connecting to server.[citation needed]
16300 Unofficial Oracle WebCenter Content: Records Management (formerly known as Oracle Universal Records Management). Port though often changed during installation
16379 Unofficial Redis Cluster bus[417]
16384 Unofficial CISCO Default RTP MIN
16384–16403 Unofficial Real-time Transport Protocol (RTP), RTP Control Protocol (RTCP), used by Apple's iChat for audio and video[11]
16384–16387 Unofficial Real-time Transport Protocol (RTP), RTP Control Protocol (RTCP), used by Apple's FaceTime and Game Center[11]
16393–16402 Unofficial Real-time Transport Protocol (RTP), RTP Control Protocol (RTCP), used by Apple's FaceTime and Game Center[11]
16403–16472 Unofficial Real-time Transport Protocol (RTP), RTP Control Protocol (RTCP), used by Apple's Game Center[11]
16400 Unofficial Oracle WebCenter Content: Capture (formerly known as Oracle Document Capture). Port though often changed during installation
16567 Unofficial Battlefield 2 and mods
17000 Unofficial M17 – Digital RF voice and data protocol with Internet (UDP) gateways (reflectors).[418]
17011 Unofficial Worms multiplayer
17224 Yes Train Realtime Data Protocol (TRDP) Process Data, network protocol used in train communication.[2][419]
17225 Yes Train Realtime Data Protocol (TRDP) Message Data, network protocol used in train communication.[2][420]
17333 Unofficial CS Server (CSMS), default binary protocol port
17472 Unofficial Tanium Communication Port
17474 Unofficial DMXControl 3 Network Discovery[421]
17475 Unofficial DMXControl 3 Network Broker[421]
17476 Unofficial DMXControl 3 Network Broker TLS[421]
17500 Yes Dropbox LanSync Protocol (db-lsp); used to synchronize file catalogs between Dropbox clients on a local network.
18080 Unofficial No Monero P2P network communications[citation needed]
18081 Unofficial No Monero incoming RPC calls[citation needed]
18091 Unofficial memcached Internal REST HTTPS for SSL
18092 Unofficial memcached Internal CAPI HTTPS for SSL
18104 Yes RAD PDF Service
18200 Unofficial Audition Online Dance Battle, AsiaSoft Thailand Server status/version check
18201 Unofficial Audition Online Dance Battle, AsiaSoft Thailand Server
18206 Unofficial Audition Online Dance Battle, AsiaSoft Thailand Server FAM database
18300 Unofficial Audition Online Dance Battle, AsiaSoft SEA Server status/version check
18301 Unofficial Audition Online Dance Battle, AsiaSoft SEA Server
18306 Unofficial Audition Online Dance Battle, AsiaSoft SEA Server FAM database
18333 Unofficial Bitcoin testnet[citation needed]
18400 Unofficial Audition Online Dance Battle, KAIZEN Brazil Server status/version check
18401 Unofficial Audition Online Dance Battle, KAIZEN Brazil Server
18505 Unofficial Audition Online Dance Battle R4p3 Server, Nexon Server status/version check
18506 Unofficial Audition Online Dance Battle, Nexon Server
18605 Unofficial X-BEAT status/version check
18606 Unofficial X-BEAT
18676 Unofficial YouView
18769 Yes iQue Protocol
19000 Unofficial Audition Online Dance Battle, G10/alaplaya Server status/version check
Unofficial JACK sound server
19001 Unofficial Audition Online Dance Battle, G10/alaplaya Server
19132 Unofficial Minecraft: Bedrock Edition multiplayer server[422]
19133 Unofficial Minecraft: Bedrock Edition IPv6 multiplayer server[422]
19150 Unofficial Gkrellm Server
19226 Unofficial Panda Software AdminSecure Communication Agent
19294 Unofficial Google Talk Voice and Video connections[423]
19295 Unofficial Google Talk Voice and Video connections[423]
19302 Unofficial Google Talk Voice and Video connections[423]
19531 Unofficial No systemd-journal-gatewayd[424]
19532 Unofficial No systemd-journal-remote[425]
19788 No Yes Mesh Link Establishment protocol for IEEE 802.15.4 radio mesh networks[426]
19812 Yes No 4D database SQL Communication[427]
19813 Yes 4D database Client Server Communication[427]
19814 Yes 4D database DB4D Communication[427]
19999 Yes Distributed Network Protocol—Secure (DNP—Secure), a secure version of the protocol used in SCADA systems between communicating RTU's and IED's
20000 Yes Distributed Network Protocol (DNP), a protocol used in SCADA systems between communicating RTU's and IED's
Yes OpenWebNet, communications protocol used in Bticino products
Unofficial Usermin, Web-based Unix/Linux user administration tool (default port)
Unofficial Used on VoIP networks for receiving and transmitting voice telephony traffic which includes Google Voice via the OBiTalk ATA devices as well as on the MagicJack and Vonage ATA network devices.[395]
20560 Unofficial Killing Floor
20580 Unofficial Unofficial Walljam device communications
20581 Unofficial Unofficial Walljam device communications
20595 Unofficial 0 A.D. Empires Ascendant
20808 Unofficial Ableton Link
21025 Unofficial Starbound Server (default), Starbound[428]
21064 Unofficial Default Ingres DBMS server
22000 Unofficial Syncthing (default)
22136 Unofficial FLIR Systems[429] Camera Resource Protocol
22222 Unofficial Davis Instruments, WeatherLink IP[430]
22347 Yes WibuKey, WIBU-SYSTEMS AG Copy protection
22350 Yes CodeMeter, WIBU-SYSTEMS AG Copy protection
22351 Yes CodeMeter-CmWAN, WIBU-SYSTEMS AG Copy protection
23073 Unofficial Soldat Dedicated Server
23399 Unofficial Skype default protocol
23513 Unofficial Duke Nukem 3D source ports
24441 Unofficial Pyzor spam detection network
24444 Unofficial NetBeans integrated development environment
24465 Yes Tonido Directory Server for Tonido[431] which is a Personal Web App and P2P platform
24554 Yes BINKP, Fidonet mail transfers over TCP/IP
24800 Unofficial Synergy: keyboard/mouse sharing software
24842 Unofficial StepMania: Online: Dance Dance Revolution Simulator
25565 Unofficial Minecraft (Java Edition) multiplayer server[432][433]
Unofficial Minecraft (Java Edition) multiplayer server query[434]
25575 Unofficial Minecraft (Java Edition) multiplayer server RCON[435]
25734-25735 Unofficial SOLIDWORKS SolidNetworkLicense Manager[436]
25826 Unofficial collectd default port[437]
26000 Yes id Software's Quake server
Unofficial EVE Online, iVentoy webGUI (see Ventoy
Unofficial Xonotic, an open-source arena shooter
26822 Unofficial MSI MysticLight
26900–26901 Unofficial EVE Online
26909–26911 Unofficial Action Tanks Online
27000 Unofficial PowerBuilder SySAM license server
27000–27006 Unofficial id Software's QuakeWorld master server
27000–27009 Yes FlexNet Publisher's License server (from the range of default ports)
27000–27015 No Unofficial Steam (game client traffic)[438]
27015 No Unofficial GoldSrc, Source engine and Source 2 engine dedicated server port[438]
27015–27018 Unofficial Unturned, a survival game
27015–27030 No Unofficial Steam (matchmaking and HLTV)[438]
Unofficial Steam (downloads)[438]
27016 Unofficial Magicka and Space Engineers server port
27017 Unofficial No MongoDB daemon process (mongod) and routing service (mongos)[439]
27031–27035 No Unofficial Steam (In-Home Streaming)[438]
27036 Unofficial Steam (In-Home Streaming)[438]
27100 Unofficial Screen Play Games controller
27374 Unofficial Sub7 default.
27500–27900 Unofficial id Software's QuakeWorld
27888 Unofficial Kaillera server
27901–27910 Unofficial id Software's Quake II master server
27950 Unofficial OpenArena outgoing
27960–27969 Unofficial Activision's Enemy Territory and id Software's Quake III Arena, Quake III and Quake Live and some ioquake3 derived games, such as Urban Terror (OpenArena incoming)
28000 Yes Siemens Digital Industries Software license server[2]
28001 Unofficial Starsiege: Tribes[citation needed]
28015 Unofficial Rust (video game)[440]
28016 Unofficial Rust (video game) RCON[441]
28200 Assigned VoxelStorm game server
28260 Unofficial Palo Alto Networks' Panorama HA-1 backup unencrypted sync port.[27]
28443 Unofficial Palo Alto Networks' Panorama-to-managed devices software updates, PAN-OS 8.0 and later.[213]
28769 Unofficial Palo Alto Networks' Panorama HA unencrypted sync port.[27]
28770 Unofficial Palo Alto Networks' Panorama HA-1 backup sync port.[27]
28770–28771 Unofficial AssaultCube Reloaded, a video game based upon a modification of AssaultCube[citation needed]
28785–28786 Unofficial Cube 2: Sauerbraten[442]
28852 Unofficial Killing Floor[citation needed]
28910 Unofficial Nintendo Wi-Fi Connection[443]
28960 Unofficial Call of Duty; Call of Duty: United Offensive; Call of Duty 2; Call of Duty 4: Modern Warfare[citation needed] Call of Duty: World at War (PC platform)[444]
29000 Yes Siemens Digital Industries Software license server[2]
29070 Unofficial Jedi Knight: Jedi Academy by Ravensoft[citation needed]
29900–29901 Unofficial Nintendo Wi-Fi Connection[443]
29920 Unofficial Nintendo Wi-Fi Connection[443]
30000 Unofficial XLink Kai P2P
Unofficial Luanti server default port[445]
Unofficial Foundry Virtual Tabletop server default port[446]
30003 Yes Yes Amicon FPSU-IP Remote Administration
30004 Yes Yes Amicon FPSU-IP VPN
30033 Unofficial No TeamSpeak 3 File Transfer[393]
30120 Unofficial Fivem (Default Port) GTA V multiplayer[447][433]
30564 Unofficial Multiplicity: keyboard/mouse/clipboard sharing software[citation needed]
30814 Unofficial BeamMP: Unofficial BeamNG.drive multiplayer mod. Default server port
31337 Unofficial Back Orifice and Back Orifice 2000 remote administration tools[448][449]
Unofficial ncat, a netcat alternative[450]
31416 Unofficial BOINC RPC[451]
31438 Unofficial Rocket U2[452]
31457 Yes TetriNET
32137 Unofficial Immunet Protect (UDP in version 2.0,[453] TCP since version 3.0[454])
32400 Yes Plex Media Server[455]
32764 Unofficial A backdoor found on certain Linksys, Netgear and other wireless DSL modems/combination routers[456]
32887 Unofficial Ace of Spades, a multiplayer FPS video game[citation needed]
32976 Unofficial LogMeIn Hamachi, a VPN application; also TCP port 12975 and SSL (TCP 443).[457]
33434 Yes traceroute
33848 Unofficial Jenkins, a continuous integration (CI) tool[458][459]
34000 Unofficial Infestation: Survivor Stories (formerly known as The War Z), a multiplayer zombie video game[verification needed]
34197 No Unofficial Factorio, a multiplayer survival and factory-building game[460]
35357 Yes OpenStack Identity (Keystone) administration[461][self-published source?]
36330 Unofficial Folding@home Control Port
37008 Unofficial TZSP intrusion detection[citation needed]
38412 Yes NG Application Protocol (NGAP) for communication between a gNB and AMF in 5G core networks[462][463]
40000 Yes SafetyNET p – a real-time Industrial Ethernet protocol
41121 Yes Reserved Tentacle Server[464] – Pandora FMS
41230 Assigned Yes Z-Wave Protocol over DTLS[465]
41794 Yes Crestron Control Port[466] – Crestron Electronics
41795 Yes Crestron Terminal Port[467] – Crestron Electronics
41796 Yes No Crestron Secure Control Port[468] – Crestron Electronics
41797 Yes No Crestron Secure Terminal Port[469] – Crestron Electronics
42081–42090 Yes Zippin –Zippin Store[470]
42590–42595 Yes Glue – MakePro X[471]
42999 Yes Curiosity [472]
43110 Unofficial ZeroNet web UI default port [473]
43594–43595 Unofficial RuneScape[474]
44123 Assigned Unofficial Z-Wave Secure Tunnel[475]
44405 Unofficial Mu Online Connect Server[citation needed]
44818 Yes EtherNet/IP explicit messaging
47808–47823 Yes BACnet Building Automation and Control Networks (4780810 = BAC016 to 4782310 = BACF16)
48556 Yes drive.web AC/DC Drive Automation and Control Networks [476]
48656 Unofficial Brainy LAB[477] Control Server
48657 Unofficial Brainy LAB[477] Control Server
49151 Reserved "IANA Reserved"[2]

Dynamic, private or ephemeral ports

[edit]
See also: Ephemeral port

The range 49152–65535 (215 + 214 to 216 − 1), 16 384 ports, contains dynamic or private ports that cannot be registered with IANA.[478] This range is used for private or customized services, for temporary purposes, and for automatic allocation of ephemeral ports.

Dynamic, private or ephemeral ports
Port TCP UDP SCTP DCCP Description
49152–65535 Unofficial No Certificate Management over CMS[479] and Xsan Filesystem Access[480]
49160 Unofficial Palo Alto Networks' Panorama.[213]
50160 Unofficial S-CONNECT protocol - data exchange (TCP) and manual device pairing (UDP).[481]
50161 Unofficial S-CONNECT protocol - automatic device pairing.[481]
51820 No Unofficial WireGuard protocol[482]
52380 No Unofficial Sony VISCA Network Setting Protocol[483]
52381 No Unofficial Sony VISCA over IP Protocol[483]
59100 Unofficial AudioRelay[484]
60000–61000 No Unofficial Range from which Mosh – a remote-terminal application similar to SSH – typically assigns ports for ongoing sessions between Mosh servers and Mosh clients.[485]
61616 Unofficial ActiveMQ Classic [486]
62078 Unofficial Apple's lockdownd protocol – used for communicating with iPhones and iPads.[487]
64738 Unofficial Mumble[488]

Note

[edit]
  1. ^ TCP port 465 was originally assigned to allow the use of SMTP over SSL (SMTPS), but practical concerns meant that it was left unused and according to the registration rules at that time was subsequently revoked and eventually re-assigned for use by Cisco's URD protocol. Subsequently, port 587 was assigned as the SMTP submission port, but was initially in plaintext, with encryption eventually provided years later by the STARTTLS extension. At the same time, the subsequent adoption of the usage of 465 as an SSL-enabled SMTP submission port, even though the original registration did not envision that usage and despite the fact that it was registered to another service has endured. Subsequently, RFC 8314, in a special exemption to the normal assignment process as defined by RFC 6335, acknowledges the de-facto situation and not only designates message submission over implicit TLS as an 'alternate usage assignment' but establishes this as the preferred method and calls for transition away from port 587 and STARTTLS.
  2. ^ Deployment typically occurs only directly over UDP, but other underlying protocol layers which meet the requirements described in the specification are possible.

See also

[edit]

[210]

References and notes

[edit]
  1. ^ "Service Name and Transport Protocol Port Number Registry". Internet Assigned Numbers Authority. Retrieved 8 October 2023.
  2. ^ a b c d e f g h i j k l m n o p "Service Name and Transport Protocol Port Number Registry". The Internet Assigned Numbers Authority (IA).
  3. ^ a b c d e f g h i j k l m n o p q r s t u v w x y z aa ab ac ad ae af ag ah ai aj ak al am an Michelle Cotton; Lars Eggert; et al. (August 2011). Internet Assigned Numbers Authority (IANA) Procedures for the Management of the Service Name and Transport Protocol Port Number Registry. IETF. doi:10.17487/RFC6335. BCP 165. RFC 6335. Retrieved 2014-04-01.
  4. ^ Touch, Joe (August 2015). Recommendations on Using Assigned Transport Port Numbers. IETF. doi:10.17487/RFC7605. BCP 165. RFC 7605. Retrieved 2018-04-08.
  5. ^ services(5) – Linux File Formats Manual. "... Port numbers below 1024 (so-called "low numbered" ports) can only be bound to by root ... Well-known port numbers specified by the IANA are normally located in this root-only space. ..."
  6. ^ "Linux/net/ipv4/inet_connection_sock.c". LXR. Archived from the original on 2015-04-02. Retrieved 2015-01-17.
  7. ^ Lottor, M. (November 1988). TCP Port Service Multiplexer (TCPMUX). IETF. pp. 1–2. doi:10.17487/RFC1078. RFC 1078. Retrieved 2016-09-28.
  8. ^ Bressler, Rober; Guida, Richard; McKenzie, Alex (16 October 1972). Remote Job Entry Protocol. IETF. doi:10.17487/RFC0407. RFC 407. Retrieved 2018-04-08.
  9. ^ Bierman, A.; Bucci, C.; Iddon, R. (August 2000). Remote Network Monitoring MIB Protocol Identifier Macros. IETF. doi:10.17487/RFC2896. RFC 2896. Retrieved 2018-07-13.
  10. ^ Postel, J. (May 1983). Echo Protocol. IETF. p. 1. doi:10.17487/RFC0862. STD 20. RFC 862. Retrieved 2016-09-28.
  11. ^ a b c d e f g h i j k l m n o p q r s t u v w x y z aa ab ac ad ae af ag ah ai aj ak al am an ao ap aq ar as at au av aw ax ay az ba bb bc bd be bf bg bh bi bj bk bl bm bn bo bp bq br bs bt bu bv bw bx by bz ca cb "TCP and UDP ports used by Apple software products". Support. Apple (published 2021-06-14). 2014-11-08. Archived from the original on 2021-10-15. Retrieved 2021-10-19.
  12. ^ a b c d e f g h Stewart, Randall R., ed. (September 2007). Stream Control Transmission Protocol. IETF. pp. 135–136. doi:10.17487/RFC4960. RFC 4960. Retrieved 2016-09-27.
  13. ^ Postel, J. (May 1983). Discard Protocol. IETF. p. 1. doi:10.17487/RFC0863. STD 21. RFC 863. Retrieved 2016-10-07.
  14. ^ "How to Configure the Ports Used for Wake On LAN". Microsoft TechNet. n.d. Archived from the original on 2016-09-27. Retrieved 2016-09-27. ... The default port for the wake-up transmission is UDP port 9. ...
  15. ^ a b "systat and netstat". eTutorials. ... The ps -ef and netstat -a commands are bound to TCP ports 11 and 15, respectively.  ...
  16. ^ Postel, J. (May 1983). Active Users. IETF. doi:10.17487/RFC0866. STD 24. RFC 866.
  17. ^ Postel, J. (May 1983). Daytime Protocol. IETF. p. 1. doi:10.17487/RFC0867. STD 25. RFC 867. Retrieved 2016-09-27.
  18. ^ Postel, J. (May 1983). Quote of the Day Protocol. IETF. p. 1. doi:10.17487/RFC0865. STD 23. RFC 865. Retrieved 2016-09-27.
  19. ^ Nelson, Russell (June 1990). Message Send Protocol. IETF. p. 1. doi:10.17487/RFC1159. RFC 1159. Retrieved 2016-09-27.
  20. ^ Nelson, Russell; Arnold, Geoff (April 1992). Message Send Protocol 2. IETF. pp. 3–4. doi:10.17487/RFC1312. RFC 1312. Retrieved 2016-09-27.
  21. ^ Postel, J. (May 1983). Character Generator Protocol. IETF. p. 1. doi:10.17487/RFC0864. STD 22. RFC 864. Retrieved 2016-09-27.
  22. ^ Postel, J. (June 1980). File Transfer Protocol specification. IETF. p. 57. doi:10.17487/RFC0765. RFC 765. IEN 149. Retrieved 2016-09-27.
  23. ^ Postel, J.; Reynolds, J. (October 1985). File Transfer Protocol. IETF. p. 59. doi:10.17487/RFC0959. STD 9. RFC 959. Retrieved 2016-09-27.
  24. ^ Postel, J.; Reynolds, J. (May 1983). Telnet Protocol Specification. IETF. p. 15. doi:10.17487/RFC0854. STD 8. RFC 854. Retrieved 2016-09-28.
  25. ^ Postel, Jonathan B. (August 1982). Simple Mail Transfer Protocol. IETF. p. 44. doi:10.17487/RFC0821. STD 10. RFC 821. Retrieved 2016-09-28.
  26. ^ "National Software Works, Status report no.1" (PDF). apps.dtic.mil. Retrieved 16 September 2024.
  27. ^ Postel, J.; Harrenstien, K. (May 1983). Time Protocol. IETF. pp. 1–2. doi:10.17487/RFC0868. STD 26. RFC 868. Retrieved 2016-09-28.
  28. ^ Postel, J. (August 1979). Internet Name Server. IETF. IEN 116. Retrieved 2016-09-28.
  29. ^ Harrenstien, Ken; White, Vic (1982-03-01). NICNAME/WHOIS. IETF. p. 1. doi:10.17487/RFC0812. RFC 812. Retrieved 2016-09-28.
  30. ^ Harrenstien, K.; Stahl, M.; Feinler, E. (October 1985). NICNAME/WHOIS. IETF. p. 2. doi:10.17487/RFC0954. RFC 954. Retrieved 2016-09-28.
  31. ^ Daigle, Leslie (September 2004). WHOIS Protocol Specification. Ran Atkinson, Ken Harrenstien, Mary Stahl, Elizabeth Feinler. IETF. p. 2. doi:10.17487/RFC3912. RFC 3912. Retrieved 2016-09-28.
  32. ^ Finseth, Craig A. (July 1993). An Access Control Protocol, Sometimes Called TACACS. IETF. p. 7. doi:10.17487/RFC1492. RFC 1492. Retrieved 2016-09-28.
  33. ^ TACACS+ Team (15 April 2018). The TACACS+ Protocol. IETF. I-D opsawg-tacacs-10. Retrieved 2018-07-18.
  34. ^ Malis, Andrew G. (May 1983). "IMP Logical Addressing Implementation Specification, report 5256" (PDF). BBN – Bolt Beranek and Newman Inc. Retrieved 2018-07-18.
  35. ^ a b c d IBM Corp. (14 September 2002). "AIX 5.2 Communications Programming Concepts, Chapter 12. Xerox Network System". Retrieved 2018-07-25.
  36. ^ Mockapetris, P. (November 1987). DNS Implementation and Specification. IETF. doi:10.17487/RFC1035. RFC 1035. Retrieved 2018-07-18.
  37. ^ Reynolds, J.; Postel, J. (March 1990). Assigned Numbers. IETF. p. 9. doi:10.17487/RFC1060. RFC 1060. Retrieved 2018-07-24.
  38. ^ Bennett, C. J. (January 1981). "A Simple NIFTP-Based Mail System". INDRA. Retrieved 2018-07-18.
  39. ^ Sollins, Karen R. (1980-01-29). The TFTP Protocol. IETF. p. 6. IEN 133. Retrieved 2016-10-16.
  40. ^ Sollins, K.R. (June 1981). TFTP Protocol (revision 2). Noel Chiappa, Bob Baldwin, Dave Clark, Steve Szymanski, Larry Allen, Geoff Cooper, Mike Greenwald, Liza Martin, David Reed. IETF. pp. 6, 14, 16. doi:10.17487/RFC0783. RFC 783. Retrieved 2016-10-16.
  41. ^ Sollins, Karen R. (July 1992). The TFTP Protocol (Revision 2). IETF. pp. 4–5, 9, 10. doi:10.17487/RFC1350. STD 33. RFC 1350. Retrieved 2016-10-16.
  42. ^ Anklesaria, Farhad; McCahill, M.; Lindner, Paul; Johnson, David; Torrey, Daniel; Alberti, Bob (March 1993). The Internet Gopher Protocol (a distributed document search and retrieval protocol). IETF. pp. 1, 4–5, 7, 11–13. doi:10.17487/RFC1436. RFC 1436. Retrieved 2016-10-16. ... This protocol assumes a reliable data stream; TCP is assumed. Gopher servers should listen on port 70 (port 70 is assigned to Internet Gopher by IANA). ...
  43. ^ Braden, R. (1971-01-13). NETRJS: A third level protocol for Remote Job Entry. IETF. doi:10.17487/RFC0088. RFC 88. Retrieved 2016-10-16.
  44. ^ Braden, R. (1977-11-22). NETRJS Protocol. IETF. p. 3. doi:10.17487/RFC0740. RFC 740. Retrieved 2016-10-16.
  45. ^ Postel, Jon; Vernon, J. (January 1983). Assigned Numbers. IETF. p. 10. doi:10.17487/RFC0820. RFC 820. Retrieved 2016-10-16.
  46. ^ Karrenstien, K. (1977-12-30). NAME/FINGER Protocol. IETF. p. 1. doi:10.17487/RFC0742. RFC 742. Retrieved 2016-10-16.
  47. ^ Zimmerman, David Paul (December 1991). "Flow of events". The Finger User Information Protocol. IETF. p. 4. sec. 2.1. doi:10.17487/RFC1288. RFC 1288. Retrieved 2016-10-16. ... Finger is based on the Transmission Control Protocol, using TCP port 79 decimal ...
  48. ^ a b Fielding, Roy T.; Reschke, Julian F., eds. (June 2014). Hypertext Transfer Protocol (HTTP/1.1): Message Syntax and Routing. IETF. pp. 11, 17, 19, 42–43, 50. doi:10.17487/RFC7230. RFC 7230. Retrieved 2016-10-16.
  49. ^ a b Belshe, Mike; Peon, Roberto (May 2015). "Starting HTTP/2". In Thomson, Martin (ed.). Hypertext Transfer Protocol Version 2 (HTTP/2). IETF. p. 7. sec. 3. doi:10.17487/RFC7540. RFC 7540. Retrieved 2016-10-16. ... HTTP/2 uses the same "http" and "https" URI schemes used by HTTP/1.1. HTTP/2 shares the same default port numbers: 80 for "http" URIs and 443 for "https" URIs. ...
  50. ^ a b Iyengar, J.; Thomson, M. QUIC: A UDP-Based Multiplexed and Secure Transport. IETF. I-D ietf-quic-transport. Retrieved 2018-07-25.
  51. ^ Britton, T., Liu-Johnston, I., Cugnière, I., Gupta, S., Rodriguez, D., Barbier, J., & Tricaud, S. Analysis of 24 hours internet attacks.
  52. ^ "Using Nmap for Outbound Traffic Analysis". Hacking Practical Protection. Warsaw, Poland: Hakin9 Media. 2013.
  53. ^ Kohl, John; Neuman, B. Clifford (September 1993). "IP transport". The Kerberos Network Authentication Service (V5). IETF. pp. 81–82. sec. 8.2.1. doi:10.17487/RFC1510. RFC 1510. Retrieved 2016-10-16. ... When contacting a Kerberos server (KDC) ... the client shall send a UDP datagram containing only an encoding of the request to port 88 (decimal) at the KDC's IP address ...
  54. ^ Neuman, Clifford; Yu, Tom; Hartman, Sam; Raeburn, Kenneth (July 2005). The Kerberos Network Authentication Service (V5). Acknowledgements to John Kohl et al. in section 11 "Acknowledgements", pages 121–122. IETF. pp. 102–103, 105. doi:10.17487/RFC4120. RFC 4120. Retrieved 2016-10-16. ... Kerberos servers (KDCs) supporting IP transports MUST accept TCP ... UDP requests and SHOULD listen for them on port 88 (decimal) ...
  55. ^ Crispin, Mark (7 October 1977). SUPDUP Protocol. IETF. pp. 15. doi:10.17487/RFC0734. RFC 734. Retrieved 2019-09-24.
  56. ^ Harrenstien, K.; Stahl, M.; Feinler, E. (October 1985). HOSTNAME SERVER. IETF. pp. 1. doi:10.17487/RFC953. RFC 953. Retrieved 2018-07-26.
  57. ^ Cass, D. E.; Rose, M. T. (April 1986). ISO Transport Services on Top of the TCP. IETF. pp. 5, 8, 12–13, 23–24. doi:10.17487/RFC0983. RFC 983. Retrieved 2016-10-17. ... A TSAP server begins by LISTENing on TCP port 102. ...
  58. ^ Rose, Marshall T.; Cass, Dwight E. (May 1987). ISO Transport Service on top of the TCP Version: 3. IETF. pp. 1, 13. doi:10.17487/RFC1006. STD 35. RFC 1006. Retrieved 2016-10-17. ... TCP port 102 is reserved for hosts which implement this standard. ...
  59. ^ Hedberg, Roland; Pomes, Paul (September 1998). "Basic Operation". The CCSO Nameserver (Ph) Architecture. IETF. p. 4. sec. 2. doi:10.17487/RFC2378. RFC 2378. Retrieved 2016-10-17. ... Initially, the server host starts the Ph service by listening on TCP port 105. ...
  60. ^ Postel, Jon (November 1982). The Remote User Telnet Service. IETF. p. 1. doi:10.17487/RFC0818. RFC 818. Retrieved 2016-10-17. ... the specific service of User Telnet may be accessed (on hosts that choose to provide it) by opening a connection to port 107 (153 octal). ...
  61. ^ Butler, M.; Postel, J.; Chase, D.; Goldberger, J.; Reynolds, J. K. (February 1985). Post Office Protocol: Version 2. IETF. p. 1. doi:10.17487/RFC0937. RFC 937. Retrieved 2016-10-17. ... This protocol assumes a reliable data stream such as provided by TCP or any similar protocol. When TCP is used, the POP2 server listens on port 109 ...
  62. ^ Rose, Marshall (November 1988). Post Office Protocol: Version 3. IETF. pp. 2, 13. doi:10.17487/RFC1081. RFC 1081. Retrieved 2016-10-17. ... the server host starts the POP3 service by listening on TCP port 110. ...
  63. ^ Myers, John G.; Rose, Marshall T. (May 1996). Post Office Protocol - Version 3. IETF. pp. 3, 19. doi:10.17487/RFC1939. STD 53. RFC 1939. Retrieved 2016-10-17. ... the server host starts the POP3 service by listening on TCP port 110. ...
  64. ^ St. Johns, Michael C. (February 1993). "Overview". Identification Protocol. Acknowledgement is given to Dan Bernstein in section 7, "Acknowledgements", page 8. IETF. p. 113. sec. 2. doi:10.17487/RFC1413. RFC 1413. Retrieved 2016-10-17. ... The Identification Protocol (a.k.a., "ident", a.k.a., "the Ident Protocol") ... listens for TCP connections on TCP port 113 (decimal). ...
  65. ^ St. Johns, Michael C. (January 1985). Authentication Server. IETF. p. 1. doi:10.17487/RFC0931. RFC 931. Retrieved 2016-10-17. ... The Authentication Server Protocol provides a means to determine the identity of a user of a particular TCP connection. ... A server listens for TCP connections on TCP port 113 (decimal). ...
  66. ^ Lottor, Mark K. (September 1984). Postel, Jon (ed.). Simple File Transfer Protocol. IETF. p. 1. doi:10.17487/RFC0931. RFC 913. Retrieved 2016-10-17. ... SFTP is used by opening a TCP connection to the remote hosts' SFTP port (115 decimal). ...
  67. ^ a b c d e Assigned Numbers. IETF. doi:10.17487/RFC1340. RFC 1340. Retrieved 2014-05-27.
  68. ^ Kantor, Brian; Lapsley, Phil (February 1986). Network News Transfer Protocol. IETF. pp. 5, 20–23. doi:10.17487/RFC0977. RFC 977. Retrieved 2016-10-17. ... NNTP specifies a protocol for the distribution, inquiry, retrieval, and posting of news articles ... When used via Internet TCP, the contact port assigned for this service is 119. ...
  69. ^ Feather, Clive D.W. (October 2006). "Reading and Transit Servers". Network News Transfer Protocol (NNTP). Acknowledgements to NNTP Working Group (Russ Allbery, Ned Freed), Brian Kantor, Phil Lapsley et al.) in section 13, "Acknowledgements", pages 107–109. IETF. p. 21. sec. 3.4.1. doi:10.17487/RFC3977. RFC 3977. Retrieved 2016-10-17. ... Network News Transfer Protocol (NNTP) ... is used for the distribution, inquiry, retrieval, and posting of Netnews articles using a reliable stream-based mechanism. ... The official TCP port for the NNTP service is 119. ...
  70. ^ "COM Fundamentals – Guide – COM Clients and Servers – Inter-Object Communications – Microsoft RPC". microsoft.com. Retrieved 2014-05-27.
  71. ^ a b c NetBIOS Working Group (March 1987). Protocol standard for a NetBIOS service on a TCP/UDP transport: Concepts and methods. Acknowledgements to Internet Activities Board's End-to-End Services Task Force et al. in section 2, "Acknowledgements", page 6. IETF. doi:10.17487/RFC1001. STD 19. RFC 1001. Retrieved 2016-10-17.
  72. ^ a b c NetBIOS Working Group (March 1987). Protocol standard for a NetBIOS service on a TCP/UDP transport: Detailed specifications. Acknowledgements to Internet Activities Board in section 2, "Acknowledgements", page 4. IETF. doi:10.17487/RFC1002. STD 19. RFC 1002. Retrieved 2016-10-17.
  73. ^ Crispin, Mark R. (March 2003). INTERNET MESSAGE ACCESS PROTOCOL – VERSION 4rev1. IETF. doi:10.17487/RFC3501. RFC 3501. Retrieved 2016-10-17. ... The Internet Message Access Protocol ... allows a client to access and manipulate electronic mail messages on a server. ... The IMAP4rev1 protocol assumes a reliable data stream such as that provided by TCP. When TCP is used, an IMAP4rev1 server listens on port 143. ...
  74. ^ DeSchon, A.; Braden, R. (August 1988). Background File Transfer Program (BFTP). IETF. pp. 4, 14, 20, 24. doi:10.17487/RFC1068. RFC 1068. Retrieved 2016-10-17. ... The BFTP program ... can be executed as a remotely-accessible service that can be reached via a Telnet connection to the BFTP well-known port (152). ...
  75. ^ Davin, J.; Case, J.; Fedor, M.; Schoffstall, M. (November 1987). "The Authentication Protocol". Simple Gateway Monitoring Protocol. IETF. p. 10. sec. 4. doi:10.17487/RFC1028. RFC 1028. Retrieved 2016-10-17. ... This memo defines a simple application-layer protocol by which management information for a gateway may be inspected or altered by logically remote users. ... An authentication protocol entity responds to protocol messages received at UDP port 153 on the host with which it is associated. ...
  76. ^ Lambert, M. (June 1988). PCMAIL: A distributed mail system for personal computers. IETF. p. 8. doi:10.17487/RFC1056. RFC 1056. Retrieved 2016-10-17. ... Pcmail is a distributed mail system providing mail service to an arbitrary number of users ... The TCP contact port for DMSP has been designated 158. ...
  77. ^ Packard, Keith (2004). X Display Manager Control Protocol (Version 1.1 ed.). The Open Group. Archived from the original on 2016-01-09. Retrieved 2016-10-17. ... The purpose of the X Display Manager Control Protocol (XDMCP) is to provide a uniform mechanism for an autonomous display to request login service from a remote host. ... When XDMCP is implemented on top of the Internet User Datagram Protocol (UDP), port number 177 is to be used. ...[self-published source]
  78. ^ Rekhter, Yakov; Li, Tony; Hares, Susan, eds. (January 2006). A Border Gateway Protocol 4 (BGP-4). Acknowledgements to Kirk Lougheed et al. in section 2, "Acknowledgements", pages 6–7. IETF. pp. 8, 47–48, 51–52. doi:10.17487/RFC4271. RFC 4271. Retrieved 2016-10-17. ... BGP listens on TCP port 179. ...
  79. ^ a b Hartmann, Hartmann (August 2014). Default Port for Internet Relay Chat (IRC) via TLS/SSL. IETF. p. 2. doi:10.17487/RFC7194. RFC 7194. Retrieved 2016-10-06. ... Although system port assignments exist for IRC traffic that is plain text (TCP/UDP port 194) or TLS/SSL encrypted (TCP/UDP port 994), it is common practice amongst IRC networks not to use them for reasons of convenience and general availability on systems where no root access is granted or desired. ...
  80. ^ a b SNMP MUX Protocol and MIB. IETF. May 1991. p. 8. doi:10.17487/RFC1227. RFC 1227. Retrieved 2019-10-15. When using the TCP to provide the transport-backing for the SMUX protocol, the SNMP agent listens on TCP port 199.
  81. ^ Bernstein, Daniel B. "Quick Mail Transfer Protocol (QMTP)". Retrieved 2018-04-18. ... A QMTP client connects to a QMTP server, as discussed in section 7, over a reliable stream protocol allowing transmission of 8-bit bytes. ... QMTP may be used on top of TCP. A QMTP-over-TCP server listens for TCP connections on port 209. ...[self-published source]
  82. ^ "The Spartan Protocol Specification". 2021-03-24. Retrieved 2023-08-30. ... The default port for spartan URLs is 300, in reference to Battle of Thermopylae when 300 spartan soldiers stood ground against an invading Persian army. ...
  83. ^ Bush; Austein (2013-01-01). The Resource Public Key Infrastructure (RPKI) to Router Protocol. doi:10.17487/RFC6810. RFC 6810. Retrieved 2024-03-12.
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Further reading

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