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This is a list of TCP and UDP port numbers used by protocols for operation of network applications. The Transmission Control Protocol (TCP) and the User Datagram Protocol (UDP) only need one port for bidirectional traffic. TCP usually uses port numbers that match the services of the corresponding UDP implementations, if they exist, and vice versa.

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

CellDescription
YesDescribed protocol is assigned by IANA for this port, and is: standardized, specified, or widely used for such.
UnofficialDescribed protocol is not assigned by IANA for this port, but is: standardized, specified, or widely used for such.
AssignedDescribed protocol is assigned by IANA for this port,2 but is not: standardized, specified, or widely used for such.
NoDescribed protocol is not assigned by IANA for this port, standardized, specified, or widely used for such.
ReservedPort 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

The port numbers in the range from 0 to 1023 (0 to 2 10 − 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
PortTCPUDPSCTPDCCPDescription
0ReservedIn programming APIs (not in communication between hosts), requests a system-allocated (dynamic) port 8
1YesAssignedTCP Port Service Multiplexer (TCPMUX). Historic. Both TCP and UDP have been assigned to TCPMUX by IANA,4 but by design only TCP is specified.9
2ReservedDe-assigned on 2025-02-13, previously compressnet 4
3ReservedDe-assigned on 2025-02-13, previously compressnet 4
5AssignedRemote Job Entry 10 was historically using socket 5 in its old socket form, while MIB PIM has identified it as TCP/5 11 and IANA has assigned both TCP and UDP 5 to it.
7YesEcho Protocol 12 13
9YesYes 14AssignedDiscard Protocol 15
NoUnofficialWake-on-LAN 16
11YesActive Users (systat service) 17 18
13YesDaytime Protocol 19
15UnofficialNoPreviously netstat service 4 17
17YesQuote of the Day (QOTD) 20
18YesMessage Send Protocol 21 22
19YesCharacter Generator Protocol (CHARGEN) 23
20YesAssignedYes 14File Transfer Protocol (FTP) data transfer 13
21YesAssignedYes 14File Transfer Protocol (FTP) control (command) 13 14 24 25
22YesAssignedYes 14Secure Shell (SSH),13 secure logins, file transfers (scp, sftp) and port forwarding
23YesAssignedTelnet protocol—unencrypted text communications 13 26
25YesAssignedSimple Mail Transfer Protocol (SMTP),13 27 used for email routing between mail servers
27Assignednsw-fe (NSW User System FE) 5 28
28UnofficialPalo Alto Networks' Panorama High Availability (HA) sync encrypted port.29
29Assignedmsg-icp (MSG ICP) 5
31Assignedmsg-auth (MSG Authentication) 5
33Assigneddsp (Display Support Protocol) 5
37YesTime Protocol 30
38Assignedrap (Route Access Protocol) 5
39Assignedrlp (Resource Location Protocol) 5
41Assignedgraphics (Graphics) 5
42AssignedYesHost Name Server Protocol 31
43YesAssignedWHOIS protocol 32 33 34
44Assignedmpm-flags (MPM FLAGS Protocol) 5
45Assignedmpm (Message Processing Module [recv]) 5
46Assignedmpm-snd (MPM [default send]) 5
47Reserved
48Assignedauditd (Digital Audit Daemon) 5
49YesTACACS Login Host protocol.35 TACACS+, still in draft which is an improved but distinct version of TACACS, only uses TCP 49.36
50Assignedre-mail-ck (Remote Mail Checking Protocol) 5
51ReservedHistorically used for Interface Message Processor logical address management,37 entry has been removed by IANA on 2013-05-25
52AssignedXerox 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.38
53YesDomain Name System (DNS) 39 13
54AssignedXerox 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.38
55Assignedisi-gl (ISI Graphics Language) 5
56AssignedXerox 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.38
58AssignedXerox 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.38
61ReservedHistorically assigned to the NIFTP-Based Mail protocol,40 but was never documented in the related IEN.41 The port number entry was removed from IANA's registry on 2017-05-18.4
62Assignedacas (ACA Services) 5
63Assignedwhoispp (whois++) 5
64Assignedcovia (Communications Integrator (CI)) 5
65Assignedtacacs-ds (TACACS-Database Service) 5
66Assignedsql-net (Oracle SQL*NET) 5
67AssignedYesBootstrap Protocol (BOOTP) server;13 also used by Dynamic Host Configuration Protocol (DHCP)
68AssignedYesBootstrap Protocol (BOOTP) client;13 also used by Dynamic Host Configuration Protocol (DHCP)
69AssignedYesTrivial File Transfer Protocol (TFTP) 13 42 43 44
70YesAssignedGopher protocol 45
71–74YesNETRJS protocol 46 47 48
76Assigneddeos (Distributed External Object Store) 5
78Assignedvettcp (vettcp) 5
79YesAssignedFinger protocol 13 49 50
80YesYes 14Hypertext Transfer Protocol (HTTP) 51 52 uses TCP in versions 1.x and 2. HTTP/3 uses QUIC,53 a transport protocol on top of UDP.
81UnofficialTorPark onion routing 54
82Assignedxfer (XFER Utility) 5
82UnofficialTorPark control 55
83Assignedmit-ml-dev (MIT ML Device) 5
84Assignedctf (Common Trace Facility) 5
85Assignedmit-ml-dev (MIT ML Device) 5
86Assignedmfcobol (Micro Focus Cobol) 5
88YesKerberos 13 56 57 authentication system
89Assignedsu-mit-tg (SU/MIT Telnet Gateway) 5
90Assigneddnsix (DNSIX Security Attribute Token Map) 5
90UnofficialPointCast (dotcom) 4
91Assignedmit-dov (MIT Dover Spooler) 5
92Assignednpp (Network Printing Protocol) 5
93Assigneddcp (Device Control Protocol) 5
94Assignedobjcall (Tivoli Object Dispatcher) 5
95YesAssignedSUPDUP, terminal-independent remote login 58
96Assigneddixie (DIXIE Protocol Specification) 5
97Assignedswift-rvf (Swift Remote Virtual File Protocol) 5
98Assignedtacnews (TAC News) 5
99Assignedmetagram (Metagram Relay) 5
101YesAssignedNIC host name 59
102YesAssignedISO Transport Service Access Point (TSAP) Class 0 protocol;60 61
104YesDigital Imaging and Communications in Medicine (DICOM; also port 11112)
105YesCCSO Nameserver 62
106UnofficialNomacOS Server, (macOS) password server 13
107YesRemote User Telnet Service (RTelnet) 63
108YesIBM Systems Network Architecture (SNA) gateway access server
109YesAssignedPost Office Protocol, version 2 (POP2) 64
110YesAssignedPost Office Protocol, version 3 (POP3) 13 65 66
111YesOpen Network Computing Remote Procedure Call (ONC RPC, sometimes referred to as Sun RPC)
112YesMcIDAS Data Transmission Protocol
113YesNoIdent, authentication service/identification protocol,13 67 used by IRC servers to identify users
YesAssignedAuthentication Service (auth), the predecessor to identification protocol. Used to determine a user's identity of a particular TCP connection.68
115YesAssignedSimple File Transfer Protocol 69
117YesUUCP Mapping Project (path service) 70
118YesStructured Query Language (SQL) Services
119YesAssignedNetwork News Transfer Protocol (NNTP),13 retrieval of newsgroup messages 71 72
123AssignedYesNetwork Time Protocol (NTP), used for time synchronization 13
126YesFormerly Unisys Unitary Login, renamed by Unisys to NXEdit. Used by Unisys Programmer's Workbench for Clearpath MCP, an IDE for Unisys MCP software development
135YesDCE endpoint resolution
YesMicrosoft EPMAP (End Point Mapper), also known as DCE/ RPC Locator service,73 used to remotely manage services including DHCP server, DNS server and WINS. Also used by DCOM
137YesNetBIOS Name Service, used for name registration and resolution 74 75
138AssignedYesNetBIOS Datagram Service 13 74 75
139YesAssignedNetBIOS Session Service 74 75
143YesAssignedInternet Message Access Protocol (IMAP),13 management of electronic mail messages on a server 76
151AssignedHEMS
152YesBackground File Transfer Program (BFTP) 77
153YesSimple Gateway Monitoring Protocol (SGMP), a protocol for remote inspection and alteration of gateway management information 78
156YesStructured Query Language (SQL) Service
158YesDistributed Mail System Protocol (DMSP, sometimes referred to as Pcmail) 79
161AssignedYesSimple Network Management Protocol (SNMP) 70
162YesSimple Network Management Protocol Trap (SNMPTRAP) 70
165AssignedXerox
169AssignedSEND
170YesNetwork PostScript print server
175YesVMNET service using NJE
177YesX Display Manager Control Protocol (XDMCP), used for remote logins to an X Display Manager server 80
179YesAssignedYes 14Border Gateway Protocol (BGP),81 used to exchange routing and reachability information among autonomous systems (AS) on the Internet
180Assignedris
194YesInternet Relay Chat (IRC) 82
199YesSNMP Unix Multiplexer (SMUX) 83
201YesAppleTalk Routing Maintenance
209YesAssignedQuick Mail Transfer Protocol 84
210YesANSI Z39.50
213YesInternetwork Packet Exchange (IPX)
218YesMessage posting protocol (MPP)
220YesInternet Message Access Protocol (IMAP), version 3
225–241Reserved
249–255Reserved
259YesEfficient Short Remote Operations (ESRO)
262YesArcisdms
264YesBorder Gateway Multicast Protocol (BGMP)
280Yeshttp-mgmt
300UnofficialThinLinc Web Access, Spartan protocol 85
308YesNovastor Online Backup
311YesAssignedmacOS Server Admin 13 (officially AppleShare IP Web administration 4)
312UnofficialNomacOS Xsan administration 13
318YesPKIX Time Stamp Protocol (TSP)
319YesPrecision Time Protocol (PTP) event messages
320YesPrecision Time Protocol (PTP) general messages
323YesResource Public Key Infrastructure 86
350YesMapping of Airline Traffic over Internet Protocol (MATIP) type A
351YesMATIP type B
356Yescloanto-net-1 (used by Cloanto Amiga Explorer and VMs)
366YesOn-Demand Mail Relay (ODMR)
369YesRpc2portmap
370Yescodaauth2, Coda authentication server
Yessecurecast1, outgoing packets to NAI 's SecureCast servers 87 As of 2000
371YesClearCase albd
376YesAmiga Envoy Network Inquiry Protocol
383YesHP data alarm manager
384YesA Remote Network Server System
387YesAURP (AppleTalk Update-based Routing Protocol) 88
388YesAssignedUnidata LDM near real-time data distribution protocol 89 90
389YesAssignedLightweight Directory Access Protocol (LDAP) 13
399YesDigital Equipment Corporation DECnet+ (Phase V) over TCP/IP (RFC1859)
401YesUninterruptible power supply (UPS)
427YesService Location Protocol (SLP) 13
433YesNNTP, part of Network News Transfer Protocol
434YesMobile IP Agent (RFC 5944)
443YesYes 14Hypertext Transfer Protocol Secure (HTTPS) 51 52 uses TCP in versions 1.x and 2. HTTP/3 uses QUIC,53 a transport protocol on top of UDP.
444YesSimple Network Paging Protocol (SNPP), RFC 1568
445YesMicrosoft-DS (Directory Services) Active Directory,91 Windows shares
YesAssignedMicrosoft-DS (Directory Services) SMB 13 file sharing
464YesKpasswd:92 Kerberos Change/Set password
465 1YesNoMessage Submission over TLS protocol 93 94
YesNoURL Rendezvous Directory for Cisco SSM 93
475Yestcpnethaspsrv, Aladdin Knowledge Systems Hasp services
476–490UnofficialCentro Software ERP 95 ports
491UnofficialGO-Global remote access and application publishing software
497YesRetrospect
500AssignedYesInternet Security Association and Key Management Protocol (ISAKMP) / Internet Key Exchange (IKE) 13
502YesModbus Protocol
504YesCitadel, multiservice protocol for dedicated clients for the Citadel groupware system
510YesFirstClass Protocol (FCP), used by FirstClass client/server groupware system
512YesRexec, Remote Process Execution
Yescomsat, together with biff
513Yesrlogin
YesWho 70
514UnofficialRemote Shell, used to execute non-interactive commands on a remote system (Remote Shell, rsh, remsh)
NoYesSyslog,13 used for system logging
515YesAssignedLine Printer Daemon (LPD),13 print service
517YesTalk
518YesNTalk
520Yesefs, extended file name server
YesRouting Information Protocol (RIP)
521YesRouting Information Protocol Next Generation (RIPng)
524YesNetWare Core Protocol (NCP) is used for a variety things such as access to primary NetWare server resources, Time Synchronization, etc.
525YesTimed, Timeserver
530YesRemote procedure call (RPC)
532YesAssignednetnews 13
533Yesnetwall, for emergency broadcasts
540YesUnix-to-Unix Copy Protocol (UUCP)
542Yescommerce (Commerce Applications)
543Yesklogin, Kerberos login
544Yeskshell, Kerberos Remote shell
546YesDHCPv6 client
547YesDHCPv6 server
548YesAssignedApple Filing Protocol (AFP) over TCP 13
550Yesnew-rwho, new-who 70
554YesReal Time Streaming Protocol (RTSP) 13
556YesRemotefs, RFS, rfs_server
560Yesrmonitor, Remote Monitor
561Yesmonitor
563YesNNTP over TLS/SSL (NNTPS)
564Unofficial9P (Plan 9)
585NoPreviously assigned for use of Internet Message Access Protocol over TLS/SSL (IMAPS), now deregistered in favour of port 993.96
587YesAssignedEmail Message Submission (No longer preferred; see port 465.) 94 13 97
591YesFileMaker 6.0 (and later) Web Sharing (HTTP Alternate, also see port 80)
593YesHTTP RPC Ep Map, Remote procedure call over Hypertext Transfer Protocol, often used by Distributed Component Object Model services and Microsoft Exchange Server
601YesReliable Syslog Service — used for system logging
604YesTUNNEL profile,98 a protocol for BEEP peers to form an application layer tunnel
623YesASF Remote Management and Control Protocol (ASF- RMCP) & IPMI Remote Management Protocol
625UnofficialNoOpen Directory Proxy (ODProxy) 13
631YesInternet Printing Protocol (IPP) 13
UnofficialCommon Unix Printing System (CUPS) administration console (extension to IPP)
635YesRLZ DBase
636YesAssignedLightweight Directory Access Protocol over TLS/SSL (LDAPS) 13
639YesMulticast Source Discovery Protocol, MSDP
641YesSupportSoft Nexus Remote Command (control/listening), a proxy gateway connecting remote control traffic
643YesSANity
646YesLabel Distribution Protocol (LDP), a routing protocol used in MPLS networks
647YesDHCP Failover protocol 99
648YesRegistry Registrar Protocol (RRP) 100
651YesIEEE-MMS
653YesSupportSoft Nexus Remote Command (data), a proxy gateway connecting remote control traffic
654YesMedia Management System (MMS) Media Management Protocol (MMP) 101
655YesTinc VPN daemon
657YesIBM RMC (Remote monitoring and Control) protocol, used by System p5 AIX Integrated Virtualization Manager (IVM) 102 and Hardware Management Console to connect managed logical partitions (LPAR) to enable dynamic partition reconfiguration
660YesAssignedmacOS Server administration,4 version 10.4 and earlier 13
666YesDoom, the first online first-person shooter
Unofficialairserv-ng,103 aircrack-ng 's server for remote-controlling wireless devices
674YesApplication Configuration Access Protocol (ACAP)
684YesCORBA IIOP SSL 104
688YesREALM-RUSD (ApplianceWare Server Appliance Management Protocol)
690YesVelneo Application Transfer Protocol (VATP)
691YesMS Exchange Routing
694YesLinux-HA high-availability heartbeat
695YesAssignedIEEE Media Management System over SSL (IEEE-MMS-SSL) 105
698YesOptimized Link State Routing (OLSR)
700YesExtensible Provisioning Protocol (EPP), a protocol for communication between domain name registries and registrars (RFC 5734)
701YesLink Management Protocol (LMP),106 a protocol that runs between a pair of nodes and is used to manage traffic engineering (TE) links
702YesIRIS 107 108 (Internet Registry Information Service) over BEEP (Blocks Extensible Exchange Protocol) 109 (RFC 3983)
706YesSecure Internet Live Conferencing (SILC)
711YesCisco Tag Distribution Protocol 110 111 112 —being replaced by the MPLS Label Distribution Protocol 113
712YesTopology Broadcast based on Reverse-Path Forwarding routing protocol (TBRPF; RFC 3684)
749YesKerberos administration 13
750Yeskerberos-iv, Kerberos version IV
751Unofficialkerberos_master, Kerberos authentication
752Unofficialpasswd_server, Kerberos password (kpasswd) server
753YesReverse Routing Header (RRH) 114
Unofficialuserreg_server, Kerberos userreg server
754Yestell send
Unofficialkrb5_prop, Kerberos v5 slave propagation
760Unofficialkrbupdate [kreg], Kerberos registration
777Unofficialmachine socket eXtension [msx] protocol
782UnofficialConserver serial-console management server
783UnofficialSpamAssassin spamd daemon
800Yesmdbs-daemon
802YesMODBUS /TCP Security 115
808UnofficialMicrosoft Net.TCP Port Sharing Service
829YesAssignedCertificate Management Protocol 116
830YesNETCONF over SSH
831YesNETCONF over BEEP
832YesNETCONF for SOAP over HTTPS
833YesNETCONF for SOAP over BEEP
843UnofficialAdobe Flash 117
847YesDHCP Failover protocol
848YesGroup Domain Of Interpretation (GDOI) protocol
853YesDNS over TLS (RFC 7858)
YesDNS over QUIC or DNS over DTLS 118
860YesiSCSI (RFC 3720)
861YesOWAMP control (RFC 4656)
862YesTWAMP control (RFC 5357)
873Yesrsync file synchronization protocol
888Unofficialcddbp, CD DataBase (CDDB) protocol (CDDBP)
UnofficialIBM Endpoint Manager Remote Control
897UnofficialBrocade SMI-S RPC
898UnofficialBrocade SMI-S RPC SSL
902UnofficialVMware ESXi 119 120
903UnofficialVMware ESXi 119 120
953YesReservedBIND remote name daemon control (RNDC) 121 122
981UnofficialRemote HTTPS management for firewall devices running embedded Check Point VPN-1 software 123
987UnofficialSony PlayStation Wake On Lan
UnofficialMicrosoft Remote Web Workplace, a feature of Windows Small Business Server 124
988UnofficialLustre (file system) 125 Protocol (data).
989YesFTPS Protocol (data), FTP over TLS/SSL
990YesFTPS Protocol (control), FTP over TLS/SSL
991YesNetnews Administration System (NAS) 126
992YesTelnet protocol over TLS/SSL
993YesAssignedInternet Message Access Protocol over TLS/SSL (IMAPS) 13
994ReservedPreviously assigned to Internet Relay Chat over TLS/SSL (IRCS), but was not used in common practice.
995YesPost Office Protocol 3 over TLS/SSL (POP3S) 13
1010UnofficialThinLinc web-based administration interface 127
1011–1020Reserved
1023Reserved4
Unofficialz/OS Network File System (NFS) (potentially ports 991–1023) 82 83 128

The range of port numbers from 1024 to 49151 (2 10 to 2 15 + 2 14 − 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
PortTCPUDPSCTPDCCPDescription
1024ReservedReserved
1025Assignednetwork blackjack 129
1027ReservedReserved
YesNative IPv6 behind IPv4-to-IPv4 NAT Customer Premises Equipment (6a44) 130
1029UnofficialMicrosoft DCOM services
1058Yesnim, IBM AIX Network Installation Manager (NIM)
1059Yesnimreg, IBM AIX Network Installation Manager (NIM)
1080YesSOCKS proxy
1085YesWebObjects 13
1098Yesrmiactivation, Java remote method invocation (RMI) activation
1099YesAssignedrmiregistry, Java remote method invocation (RMI) registry
1100UnofficialSaltoSystems - Handshake for IP-Components
1112UnofficialESET virus updates 131
1113Assigned
2 132
Yes 133Licklider Transmission Protocol (LTP) delay tolerant networking protocol
1119YesBattle.net chat/game protocol, used by Blizzard 's games 134
1144Yesfuscript (Fusion Script) used by Blackmagic Design Fusion and DaVinci Resolve 135
1167YesYesYesCisco IP SLA (Service Assurance Agent)
1194YesOpenVPN
1198YesThe cajo project Free dynamic transparent distributed computing in Java
1212UnofficialEqualsocial Fediverse protocol
1214YesKazaa
1220YesAssignedQuickTime Streaming Server administration 13
1234YesInfoseek search agent
UnofficialVLC media player default port for UDP/RTP stream
1241UnofficialNessus Security Scanner
1270YesMicrosoft System Center Operations Manager (SCOM) (formerly Microsoft Operations Manager (MOM)) agent
1293YesInternet Protocol Security (IPSec)
1311YesWindows RxMon.exe
UnofficialDell OpenManage HTTPS 136
1314UnofficialFestival Speech Synthesis System server 137
1319YesAMX ICSP (Protocol for communications with AMX control systems devices)
1337YesMen&Mice DNS 138
UnofficialStrapi 139
UnofficialRazer Chroma SDK Server 140
UnofficialSails.js default port 141
1341YesQubes (Manufacturing Execution System)
1344YesInternet Content Adaptation Protocol
1352YesHCL Notes / Domino (RPC) protocol
1360YesMimer SQL
1414YesIBM WebSphere MQ (formerly known as MQSeries)
1417YesTimbuktu Service 1 Port
1418YesTimbuktu Service 2 Port
1419YesTimbuktu Service 3 Port
1420YesTimbuktu Service 4 Port
1431YesReverse 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
1433YesMicrosoft SQL Server database management system (MSSQL) server
1434YesMicrosoft SQL Server database management system (MSSQL) monitor
1476YesWiFi Pineapple Hak5.
1481YesAIRS data interchange.
1492UnofficialSid Meier's CivNet, a multiplayer remake of the original Sid Meier's Civilization game
1494UnofficialCitrix Independent Computing Architecture (ICA) 142
1500UnofficialIBM Tivoli Storage Manager server 143
1501UnofficialIBM Tivoli Storage Manager client scheduler 143
1503UnofficialWindows Live Messenger (Whiteboard and Application Sharing) 144
1512YesMicrosoft's Windows Internet Name Service (WINS)
1513UnofficialGarena game client
1521YesnCUBE License Manager
UnofficialOracle database default listener, in future releases 145 official port 2483 (TCP/IP) and 2484 (TCP/IP with SSL)
1524Yesingreslock, ingres
1527YesOracle Net Services, formerly known as SQL*Net 146
UnofficialApache Derby Network Server 147
1533YesIBM Sametime Virtual Places Chat
1534NoUnofficialEclipse Target Communication Framework 148
1540Unofficial1C:Enterprise server agent (ragent) 149 150
1541Unofficial1C:Enterprise master cluster manager (rmngr) 149
1542Unofficial1C:Enterprise configuration repository server 149
1545Unofficial1C:Enterprise cluster administration server (RAS) 149
1547YesLaplink
1550Unofficial1C:Enterprise debug server 149
UnofficialGadu-Gadu (direct client-to-client)
1560–1590Unofficial1C:Enterprise cluster working processes 149
1581YesMIL STD 2045-47001 VMF
UnofficialIBM Tivoli Storage Manager web client 143
1582–1583UnofficialIBM Tivoli Storage Manager server web interface 143
1583UnofficialPervasive PSQL 151
1589YesCisco VLAN Query Protocol (VQP)
1604UnofficialDarkComet remote administration tool (RAT)
1626UnofficialiSketch 152
1627UnofficialiSketch 152
1628YesLonTalk normal
1629YesLonTalk urgent
1645NoUnofficialEarly deployment of RADIUS before RFC standardization was done using UDP port number 1645. Enabled for compatibility reasons by default on Cisco and Juniper Networks RADIUS servers.153 Official port is 1812. TCP port 1645 must not be used for RADIUS.154
1646NoUnofficialOld radacct port, RADIUS accounting protocol. Enabled for compatibility reasons by default on Cisco and Juniper Networks RADIUS servers.153 Official port is 1813. TCP port 1646 must not be used for RADIUS.154
1666UnofficialPerforce 155
1677YesNovell GroupWise clients in client/server access mode
1688UnofficialMicrosoft Key Management Service (KMS) for Windows Activation 156
1701YesLayer 2 Forwarding Protocol (L2F)
AssignedYesLayer 2 Tunneling Protocol (L2TP) 13
1707YesWindward Studios games (vdmplay)
UnofficialL2TP/IPsec, for establishing an initial connection 157
1714–1764UnofficialKDE Connect 158
1716UnofficialAmerica's Army, a massively multiplayer online game (MMO) 159
1719YesH.323 registration and alternate communication
1720YesH.323 call signaling
1723YesAssignedPoint-to-Point Tunneling Protocol (PPTP) 13
1755YesMicrosoft Media Services (MMS, ms-streaming)
1761UnofficialNovell ZENworks 160 161
1776YesEmergency management information system
1801YesMicrosoft Message Queuing
1812YesRADIUS authentication protocol, radius
1813YesRADIUS accounting protocol, radius-acct
1863YesMicrosoft Notification Protocol (MSNP), used by the Microsoft Messenger service and a number of instant messaging Messenger clients
1880UnofficialNode-RED 162
1883YesMQTT (formerly MQ Telemetry Transport)
1900AssignedYesSimple Service Discovery Protocol (SSDP),13 discovery of UPnP devices
1935YesMacromedia Flash Communications Server MX, the precursor to Adobe Flash Media Server before Macromedia 's acquisition by Adobe on December 3, 2005
UnofficialReal Time Messaging Protocol (RTMP), primarily used in Adobe Flash 163
1965UnofficialNoGemini, a lightweight, collaboratively designed protocol, striving to fill the gap between Gopher and HTTP 164
1967UnofficialCisco IOS IP Service Level Agreements (IP SLAs) Control Protocol
1972YesInterSystems Caché, and InterSystems IRIS versions 2020.3 and later
1984YesBig Brother
UnofficialArweave mining node 165
1985AssignedYesCisco Hot Standby Router Protocol (HSRP) 166
1998YesCisco X.25 over TCP (XOT) service
2000YesCisco Skinny Client Control Protocol (SCCP)
2001–2009Unofficialhexss http server (python package)
2010UnofficialArtemis: Spaceship Bridge Simulator 167
2033UnofficialCivilization IV multiplayer 168
2049YesYesYesNetwork File System (NFS) 13
2056UnofficialCivilization IV multiplayer 168
2080YesAutodesk NLM (FLEXlm)
2082UnofficialcPanel default 169
2083YesSecure RADIUS Service (radsec)
UnofficialcPanel default TLS 169
2086YesGNUnet
UnofficialWebHost Manager default 169
2087UnofficialWebHost Manager default TLS 169
2095YescPanel default web mail 169
2096UnofficialcPanel default TLS web mail 169
2100UnofficialWarzone 2100 multiplayer
2101UnofficialNetworked Transport of RTCM via Internet Protocol (NTRIP)
2102YesZephyr Notification Service server
2103YesZephyr Notification Service serv-hm connection
2104YesZephyr Notification Service hostmanager
2123YesGTP control messages (GTP-C)
2137Unofficial
2142YesTDMoIP (TDM over IP)
2152YesGTP user data messages (GTP-U)
2159YesGDB remote debug port
2181YesEForward-document transport system
UnofficialApache ZooKeeper default client port
2195UnofficialApple Push Notification Service, binary, gateway.13 170 Deprecated March 2021.171
2196UnofficialApple Push Notification Service, binary, feedback.13 170 Deprecated March 2021.171
2197UnofficialApple Push Notification Service, HTTP/2, JSON -based API.
2210YesNOAAPORT Broadcast Network
2211YesEMWIN
2221UnofficialESET anti-virus updates 131
2222YesEtherNet/IP implicit messaging for IO data
UnofficialDirectAdmin Access 172
2222–2226YesESET Remote administrator 131
2240YesGeneral Dynamics Remote Encryptor Configuration Information Protocol (RECIPe)
2261YesCoMotion master
2262YesCoMotion backup
2302UnofficialArmA multiplayer 173
UnofficialHalo: Combat Evolved multiplayer host 174
2303UnofficialArmA multiplayer (default port for game +1) 173 175
UnofficialHalo: Combat Evolved multiplayer listener 174
2305UnofficialArmA multiplayer (default port for game +3) 173
2351UnofficialAIM game LAN network port
2368UnofficialGhost (blogging platform) 176
2369UnofficialDefault for BMC Control-M/Server Configuration Agent
2370UnofficialDefault for BMC Control-M/Server, to allow the Control-M/Enterprise Manager to connect to the Control-M/Server
2372UnofficialDefault for K9 Web Protection /parental controls, content filtering agent
2375YesReservedDocker REST API (plain)
2376YesReservedDocker REST API (SSL)
2377YesReservedDocker Swarm cluster management communications 177
2379YesReservedCoreOS etcd client communication
UnofficialKGS Go Server 178
2380YesReservedCoreOS etcd server communication
2389AssignedOpenView Session Mgr
2399YesFileMaker Data Access Layer (ODBC/JDBC)
2401YesCVS version control system password-based server
2404YesIEC 60870-5-104, used to send electric power telecontrol messages between two systems via directly connected data circuits
2424UnofficialOrientDB database listening for binary client connections 179
2426UnofficialVMware VeloCloud Multipath Protocol (VCMP) Dynamic Multipath Optimization (DMPO)
2427YesMedia Gateway Control Protocol (MGCP) media gateway
2447Yesovwdb— OpenView Network Node Manager (NNM) daemon
2456UnofficialValheim
2459YesXRPL
2480UnofficialOrientDB database listening for HTTP client connections 179
2483YesOracle database listening for insecure client connections, replaces port 1521
2484YesOracle database listening for SSL client connections
2500UnofficialNetFS communication 180
2501UnofficialNetFS probe
2535YesMulticast Address Dynamic Client Allocation Protocol (MADCAP).181 All standard messages are UDP datagrams.182
2541YesLonTalk /IP
2546–2548YesEVault data protection services
2593UnofficialUltima Online servers
2598UnofficialCitrix Independent Computing Architecture (ICA) with Session Reliability; port 1494 without session reliability 142
2599UnofficialUltima Online servers
2628YesDICT 183
2638YesSQL Anywhere database server 184 185
2710UnofficialXBT Tracker.186 UDP tracker extension is considered experimental.187
2727YesMedia Gateway Control Protocol (MGCP) media gateway controller (call agent)
2759UnofficialSuperTuxKart server 188
2761YesDICOM over Integrated Secure Communication Layer (ISCL) 189
2762YesDICOM over TLS 190
2775YesShort Message Peer-to-Peer (SMPP)
2809Yescorbaloc:iiop URL, per the CORBA 3.0.3 specification
2811Yesgsi ftp, per the GridFTP specification
2827UnofficialI2P BOB Bridge 191
2944YesMegaco text H.248
2945YesMegaco binary (ASN.1) H.248
2947Yesgpsd, GPS daemon
2948–2949YesWAP push Multimedia Messaging Service (MMS)
2967YesSymantec System Center agent (SSC-AGENT)
2989YesZarkov Intelligent Agent Communication 192
3000UnofficialRuby on Rails development default 193
UnofficialMeteor development default 194
UnofficialResilio Sync,195 spun from BitTorrent Sync.
UnofficialCreate React App, script to create single-page React applications 196
UnofficialGogs and Gitea (self-hosted Git service) 197
UnofficialGrafana 198
3001YesNoHoneywell Prowatch 199
3004UnofficialiSync 13
3010YesKWS Connector
3020YesCommon Internet File System (CIFS). See also port 445 for Server Message Block (SMB), a dialect of CIFS.
3050Yesgds-db (Interbase / Firebird databases)
3052YesAPC PowerChute Network
3074YesXbox LIVE and Games for Windows – Live
3101UnofficialBlackBerry Enterprise Server communication protocol 200
3128UnofficialNoSquid caching web proxy 201
3225YesFibre Channel over IP (FCIP)
3233YesWhiskerControl research control protocol
3260YesiSCSI
3268Yesmsft-gc, Microsoft Global Catalog (LDAP service which contains data from Active Directory forests)
3269Yesmsft-gc-ssl, Microsoft Global Catalog over SSL (similar to port 3268, LDAP over SSL)
3283YesNet Assistant,13 a predecessor to Apple Remote Desktop
UnofficialApple Remote Desktop 2.0 or later 13
3290UnofficialVirtual Air Traffic Simulation (VATSIM) network voice communication
3305YesOdette File Transfer Protocol (OFTP)
3306YesAssignedMySQL database system 13
3323UnofficialDECE GEODI Server
3332UnofficialThundercloud DataPath Overlay Control
3333UnofficialEggdrop, an IRC bot default port 202
UnofficialNetwork Caller ID server
UnofficialCruiseControl.rb 203
UnofficialOpenOCD (gdbserver) 204
3344UnofficialRepetier-Server
3351UnofficialPervasive PSQL 151
3386YesGTP' 3GPP GSM / UMTS CDR logging protocol
3389YesMicrosoft Terminal Server (RDP) officially registered as Windows Based Terminal (WBT) 205
3396YesNovell NDPS Printer Agent
3412YesxmlBlaster
3423YesXware xTrm Communication Protocol
3424YesXware xTrm Communication Protocol over SSL
3435YesPacom Security User Port
3455YesResource Reservation Protocol (RSVP)
3478YesSTUN, a protocol for NAT traversal 206
YesTURN, a protocol for NAT traversal 207 (extension to STUN)
YesSTUN Behavior Discovery.208 See also port 5349.
3478–3481UnofficialMicrosoft Teams 209
3479UnofficialPlayStation Network 210
3480UnofficialPlayStation Network 210
3483YesSlim Devices discovery protocol
YesSlim Devices SlimProto protocol
3493YesNetwork UPS Tools (NUT)
3503YesMPLS LSP-echo Port
3516YesSmartcard Port
3527YesMicrosoft Message Queuing
3535UnofficialSMTP alternate 211
3544YesTeredo tunneling
3551YesApcupsd Information Port 212
3601YesSAP Message Server Port 213
3632YesAssignedDistcc, distributed compiler 13
3645YesCyc
3655YesAdvanced Systems Concepts, Inc. ActiveBatch Exec Agent 214
3659YesApple SASL, used by macOS Server Password Server 13
UnofficialBattlefield 4
3667YesInformation Exchange
3671YesKNXnet/IP(EIBnet/IP)
3689YesAssignedDigital Audio Access Protocol (DAAP), used by Apple's iTunes and AirPlay 13
3690YesSubversion (SVN) 13 version control system
3702YesWeb Services Dynamic Discovery (WS-Discovery), used by various components of Windows Vista and later
3721UnofficialES File Explorer FTP server
3724YesSome Blizzard games 134
UnofficialClub Penguin Disney online game for kids
3725YesNetia NA-ER Port
3749YesCimTrak 215 registered port
3768YesRBLcheckd server daemon
3784YesBidirectional Forwarding Detection (BFD)for IPv4 and IPv6 (Single Hop) (RFC 5881)
3785UnofficialVoIP program used by Ventrilo
3799YesRADIUS change of authorization
3804YesHarman Professional HiQnet protocol
3825UnofficialRedSeal Networks client/server connection
3826YesWarMUX game server
UnofficialRedSeal Networks client/server connection
3835UnofficialRedSeal Networks client/server connection
3830YesSystem Management Agent, developed and used by Cerner to monitor and manage solutions
3856UnofficialERP Server Application used by F10 Software
3880YesIGRS
3868YesYesDiameter base protocol (RFC 3588)
3872YesOracle Enterprise Manager Remote Agent
3900Yesudt_os, IBM UniData UDT OS 216
3960UnofficialWarframe online interaction
3962UnofficialWarframe online interaction
3978UnofficialOpenTTD game (masterserver and content service)
3978UnofficialPalo Alto Networks' Panorama management of firewalls and log collectors & pre-PAN-OS 8.0 Panorama-to-managed devices software updates.217
3979UnofficialOpenTTD game
3999YesNorman distributed scanning service
4000UnofficialDiablo II game
4001UnofficialMicrosoft Ants game
UnofficialCoreOS etcd client communication
UnofficialInterPlanetary File System swarm node 218
4018YesProtocol information and warnings
4035UnofficialIBM Rational Developer for System z Remote System Explorer Daemon
4045UnofficialSolaris lockd NFS lock daemon/manager
4050UnofficialMud Master Chat protocol (MMCP) – Peer-to-peer communications between MUD clients.219
4061YesIce Location Service 220
4069YesMinger Email Address Verification Protocol 221
4070UnofficialAmazon Echo Dot (Amazon Alexa) streaming connection with Spotify 222
4089YesOpenCORE Remote Control Service
4090YesKerio
4093YesPxPlus Client server interface ProvideX
4096YesAscom Timeplex Bridge Relay Element (BRE)
4105YesShofar (ShofarNexus)
4111YesAssignedXgrid 13
4116YesSmartcard-TLS
4123AssignedYesZ-Wave Protocol 223
4125UnofficialMicrosoft Remote Web Workplace administration
4172YesTeradici PCoIP
4190YesManageSieve 224
4195YesAWS protocol for cloud remoting solution
4197YesHarman International's HControl protocol for control and monitoring of Audio, Video, Lighting and Control equipment
4198UnofficialCouch Potato Android app 225
4200UnofficialAngular app
4201UnofficialTinyMUD and various derivatives
4222UnofficialNATS server default port 226
4226UnofficialAleph One, a computer game
4242UnofficialOrthancDICOM server 227
UnofficialQuassel distributed IRC client
4243UnofficialDocker implementations, redistributions, and setups default 228
UnofficialCrashPlan
4244UnofficialViber 229
4303YesSimple Railroad Command Protocol (SRCP)
4307YesTrueConf Client – TrueConf Server media data exchange 230
4321YesReferral Whois (RWhois) Protocol 231
4433UnofficialSaltoSystems - DTLS Based Communication for NCoder
4444UnofficialOracle WebCenter Content: Content Server—Intradoc Socket port. (formerly known as Oracle Universal Content Management).
UnofficialMetasploit 's default listener port 232
UnofficialXvfb X server virtual frame buffer service
UnofficialOpenOCD (Telnet) 204
4444–4445UnofficialI2P HTTP/S proxy
4455UnofficialOBS Studio built-in WebSocket plugin default port
4460YesAssignedNetwork Time Security Key Establishment (NTS) 233 234
4486YesIntegrated Client Message Service (ICMS)
4488YesAssignedApple Wide Area Connectivity Service, used by Back to My Mac 13
4500AssignedYesIPSec NAT Traversal 13 (RFC 3947, RFC 4306)
4502–4534YesMicrosoft Silverlight connectable ports under non-elevated trust
4505–4506UnofficialSalt master
4534UnofficialArmagetron Advanced server default
4560Unofficialdefault Log4j socketappender port
4567UnofficialSinatra default server port in development mode (HTTP)
4569YesInter-Asterisk eXchange (IAX2)
4604YesIdentity Registration Protocol
4605YesDirect End to End Secure Chat Protocol
4610–4640UnofficialQualiSystems TestShell Suite Services
4662YesOrbitNet Message Service
UnofficialDefault for older versions of eMule 235
4664UnofficialGoogle Desktop Search
4672UnofficialDefault for older versions of eMule 235
4711UnofficialeMule optional web interface 235
4713UnofficialPulseAudio sound server
4723UnofficialAppium open source automation tool
4724UnofficialDefault bootstrap port to use on device to talk to Appium
4728YesComputer Associates Desktop and Server Management (DMP)/Port Multiplexer 236
4730YesGearman 's job server
4739YesIP Flow Information Export
4747UnofficialApprentice
4753YesSIMON (service and discovery)
4789YesVirtual eXtensible Local Area Network (VXLAN)
4791YesIP Routable RocE (RoCEv2)
4840YesOPC UA Connection Protocol (TCP) and OPC UA Multicast Datagram Protocol (UDP) for OPC Unified Architecture from OPC Foundation
4843YesOPC UA TCP Protocol over TLS/SSL for OPC Unified Architecture from OPC Foundation
4847YesWeb Fresh Communication, Quadrion Software & Odorless Entertainment
4848UnofficialJava GlassFish Application Server administration default
4894YesLysKOM Protocol A 237
4900UnofficialHFSQL (Hyperfile SQL) Mantra Server from PC SOFT 238
4944NoUnofficialDrayTek DSL Status Monitoring 239
4949YesMunin Resource Monitoring Tool
4950YesCylon Controls UC32 Communications Port
5000UnofficialUPnP —Windows network device interoperability
UnofficialVTun, VPN Software
UnofficialASP.NET Core — Development Webserver
UnofficialFlightGear multiplayer 240
UnofficialSynology Inc. Management Console, File Station, Audio Station
UnofficialFlask Development Webserver
UnofficialHeroku console access
UnofficialDocker Registry 241
UnofficialAT&T U-verse public, educational, and government access (PEG) streaming over HTTP 242
UnofficialHigh-Speed SECS Message Services
Unofficial3CX Phone System Management Console/Web Client (HTTP)
UnofficialRidgeRun GStreamer Daemon (GSTD) 243
UnofficialApple's AirPlay Receiver 244
UnofficialAWS Elastic Beanstalk Proxy server 245
5000–5500NoUnofficialLeague of Legends, a multiplayer online battle arena video game 246
5001UnofficialSlingbox and Slingplayer
UnofficialIperf (Tool for measuring TCP and UDP bandwidth performance)
UnofficialSynology Inc. Secured Management Console, File Station, Audio Station
Unofficial3CX Phone System Management Console/Web Client (HTTPS)
UnofficialInterPlanetary File System RPC API 218
5002UnofficialASSA ARX access control system 247
5003YesAssignedFileMaker – name binding and transport 13
5004YesYesReal-time Transport Protocol media data (RTP) (RFC 3551, RFC 4571)
5005YesYesReal-time Transport Protocol control protocol (RTCP) (RFC 3551, RFC 4571)
5007UnofficialPalo Alto Networks – User-ID agent
5010YesRegistered to: TelePath (the IBM FlowMark workflow-management system messaging platform) 248
The TCP port is now used for: IBM WebSphere MQ Workflow
5011YesTelePath (the IBM FlowMark workflow-management system messaging platform) 248
5022UnofficialMSSQL Server Replication and Database mirroring endpoints 249
5025Yesscpi-raw Standard Commands for Programmable Instruments
5029UnofficialSonic Robo Blast 2 and Sonic Robo Blast 2 Kart servers
5031UnofficialAVM CAPI-over-TCP (ISDN over Ethernet tunneling)
5037UnofficialAndroid ADB server
5044YesStandard port in Filebeats/Logstash implementation of Lumberjack protocol.
5048YesTexai Message Service
5050UnofficialYahoo! Messenger
5051Yesita-agent Symantec Intruder Alert 250
5060YesSession Initiation Protocol (SIP) 13
5061Yes 251Session Initiation Protocol (SIP) over TLS
5062YesLocalisation access
5064YesEPICS Channel Access server 252
5065AssignedYesEPICS Channel Access repeater beacon 252
5070UnofficialNoBinary Floor Control Protocol (BFCP) 253
5075YesNoEPICS PV Access Data 254 255
5076NoYesEPICS PV Access Searches 254 255
5080UnofficialNEC Phone System SV8100 and SV9100 MLC phones: default iSIP port
5084YesEPCglobal Low Level Reader Protocol (LLRP)
5085YesEPCglobal Low Level Reader Protocol (LLRP) over TLS
5090Unofficial3CX Phone System 3CX Tunnel Protocol, 3CX App API, 3CX Session Border Controller
5093YesSafeNet, Inc Sentinel LM, Sentinel RMS, License Manager, client-to-server
5099YesSafeNet, Inc Sentinel LM, Sentinel RMS, License Manager, server-to-server
5104UnofficialIBM Tivoli Framework NetCOOL/Impact 256 HTTP Service
5121UnofficialNeverwinter Nights
5150YesATMP Ascend Tunnel Management Protocol 257
5151YesESRI SDE Instance
YesESRI SDE Remote Start
5154YesBZFlag
5172YesPC over IP Endpoint Management 258
5173UnofficialVite 259
5190YesAOL Instant Messenger protocol.13 The chat app is defunct as of 15 December 2017.260
5198UnofficialEchoLink VoIP Amateur Radio Software (Voice)
5199UnofficialEchoLink VoIP Amateur Radio Software (Voice)
5200UnofficialEchoLink VoIP Amateur Radio Software (Information)
5201UnofficialIperf3 (Tool for measuring TCP and UDP bandwidth performance)
5222YesReservedExtensible Messaging and Presence Protocol (XMPP) client connection 13 261 262
5223UnofficialApple Push Notification Service 13 170
UnofficialExtensible Messaging and Presence Protocol (XMPP) client connection over SSL
5228YesHP Virtual Room Service
UnofficialGoogle Play, Android Cloud to Device Messaging Service, Google Cloud Messaging
5231YesRemote Control of Scan Software for Cruse Scanners 263
5232YesCruse Scanning System Service 264
UnofficialSilicon Graphics Distributed Graphics Library daemon (dgld) 265 266 267
5235–5236UnofficialFirebase Cloud Messaging 268
5242UnofficialViber 229
5243UnofficialViber 229
5246YesControl And Provisioning of Wireless Access Points (CAPWAP) CAPWAP control 269
5247YesControl And Provisioning of Wireless Access Points (CAPWAP) CAPWAP data 269
5269YesExtensible Messaging and Presence Protocol (XMPP) server-to-server connection 13 261 262
5280YesExtensible Messaging and Presence Protocol (XMPP) 270
5281UnofficialExtensible Messaging and Presence Protocol (XMPP) 271
5298YesExtensible Messaging and Presence Protocol (XMPP) 272
5310AssignedYesOutlaws, a 1997 first-person shooter video game 273
5318YesReservedCertificate Management over CMS 274
5349YesSTUN over TLS / DTLS, a protocol for NAT traversal 206
YesTURN over TLS/DTLS, a protocol for NAT traversal 207
YesReservedSTUN Behavior Discovery over TLS.208 See also port 3478.
5351ReservedYesNAT Port Mapping Protocol and Port Control Protocol —client-requested configuration for connections through network address translators and firewalls
5353AssignedYesMulticast DNS (mDNS) 13
5355YesLink-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)
5357UnofficialWeb Services for Devices (WSDAPI) (starting from Windows Vista, Windows 7 and Server 2008)
5358UnofficialWSDAPI Applications to Use a Secure Channel (only provided by Windows Vista, Windows 7 and Server 2008)
5394UnofficialKega Fusion, a Sega multi-console emulator 275 276
5402YesMulticast File Transfer Protocol (MFTP) 277
5405YesNetSupport Manager
5412YesIBM Rational Synergy (Telelogic Synergy) (Continuus CM) Message Router
5413YesWonderware SuiteLink service
5417YesSNS Agent
5421YesNetSupport Manager
5432YesAssignedPostgreSQL 13 database system
5433UnofficialBouwsoft file/webserver 278
5445UnofficialCisco Unified Video Advantage
5450UnofficialOSIsoft PI Server Client Access 279
5457UnofficialOSIsoft PI Asset Framework Client Access 280
5458UnofficialOSIsoft PI Notifications Client Access 281
5480UnofficialVMware VAMI (Virtual Appliance Management Infrastructure)—used for initial setup of various administration settings on Virtual Appliances designed using the VAMI architecture.
5481UnofficialSchneider Electric 's ClearSCADA (SCADA implementation for Windows) — used for client-to-server communication.282
5495UnofficialIBM Cognos TM1 Admin server
5498UnofficialHotline tracker server connection
5499UnofficialHotline tracker server discovery
5500UnofficialHotline control connection
UnofficialVNC Remote Frame Buffer RFB protocol —for incoming listening viewer
5501UnofficialHotline file transfer connection
5517UnofficialSetiqueue Proxy server client for SETI@Home project
5550UnofficialHewlett-Packard Data Protector
5554UnofficialFastboot default wireless port
5555UnofficialOracle WebCenter Content: Inbound Refinery—Intradoc Socket port. (formerly known as Oracle Universal Content Management). Port though often changed during installation
UnofficialFreeciv 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
UnofficialWireless adb (Android Debug Bridge) control of an Android device over the network.
5556YesFreeciv, Oracle WebLogic Server Node Manager 283
5568YesSession Data Transport (SDT), a part of Architecture for Control Networks (ACN) 284
5601UnofficialKibana 285
5631YespcANYWHEREdata, Symantec pcAnywhere (version 7.52 and later 286) 287 data
5632YespcANYWHEREstat, Symantec pcAnywhere (version 7.52 and later) status
5656UnofficialIBM Lotus Sametime p2p file transfer
5666UnofficialNRPE (Nagios)
5667UnofficialNSCA (Nagios)
5670YesFILEMQ ZeroMQ File Message Queuing Protocol
YesZRE-DISC ZeroMQ Realtime Exchange Protocol (Discovery)
5671YesAssignedAdvanced Message Queuing Protocol (AMQP) 288 over TLS
5672YesAssignedYesAdvanced Message Queuing Protocol (AMQP) 288
5678UnofficialNon8n 289
NoYesMikroTik Neighbor Discovery Protocol 290 291
5683YesConstrained Application Protocol (CoAP)
5684YesConstrained Application Protocol Secure (CoAPs)
5693UnofficialNagios Cross Platform Agent (NCPA) 292
5701UnofficialHazelcast default communication port 293
5718UnofficialMicrosoft DPM Data Channel (with the agent coordinator)
5719UnofficialMicrosoft DPM Data Channel (with the protection agent)
5722YesMicrosoft RPC, DFSR (SYSVOL) Replication Service
5723UnofficialSystem Center Operations Manager 294
5724UnofficialOperations Manager Console
5741YesIDA Discover Port 1
5742YesIDA Discover Port 2
5800UnofficialVNC Remote Frame Buffer RFB protocol over HTTP
UnofficialProjectWise Server 295
5900YesRemote Frame Buffer protocol (RFB)
UnofficialVirtual Network Computing (VNC) Remote Frame Buffer RFB protocol 13 296
5905UnofficialWindows service "C:\Program Files\Intel\Intel(R) Online Connect Access\IntelTechnologyAccessService.exe" that listens on 127.0.0.1
5931YesAMMYY admin Remote Control
5938UnofficialTeamViewer remote desktop protocol 297
5984YesCouchDB database server
5985YesWindows PowerShell Default psSession Port 298 Windows Remote Management Service (WinRM-HTTP) 299
5986YesWindows PowerShell Default psSession Port 298 Windows Remote Management Service (WinRM-HTTPS) 299
5988–5989YesCIM -XML (DMTF Protocol) 300
6000–6063YesX11 —used between an X client and server over the network
6005UnofficialDefault for BMC Software Control-M/Server —Socket used for communication between Control-M processes—though often changed during installation
UnofficialDefault for Camfrog chat & cam client
6009UnofficialJD Edwards EnterpriseOne ERP system JDENet messaging client listener
6024-6025UnofficialTigermeeting Android client discovery 301
6026UnofficialTigermeeting client/server communication 301
6030-6031UnofficialTigermeeting Admin user discovery 301
6032UnofficialTigermeeting API for cloud management - TigerDriver 301
6050UnofficialArcserve backup
6051UnofficialArcserve backup
6081YesGeneric Network Virtualization Encapsulation (Geneve) 302
6086YesPeer Distributed Transfer Protocol (PDTP), FTP like file server in a P2P network
6100UnofficialVizrt System
UnofficialVentrilo authentication for version 3
6101UnofficialBackup Exec Agent Browser
6110Yessoftcm, HP Softbench CM
6111Yesspc, HP Softbench Sub-Process Control
6112Yesdtspcd, execute commands and launch applications remotely
UnofficialBlizzard 's Battle.net gaming service and some games,134 ArenaNet gaming service, Relic gaming service
UnofficialClub Penguin Disney online game for kids
6113UnofficialClub Penguin Disney online game for kids, Used by some Blizzard games 134
6121-6122UnofficialLacewing networking extensions used in Clickteam Fusion.303
6136UnofficialObjectDB database server 304
6159YesARINC 840 EFB Application Control Interface
6160UnofficialVeeam Installer Service
6161UnofficialVeeam vPower NFS Service
6162UnofficialVeeam Data Mover
6163UnofficialVeeam Hyper-V Integration Service
6164UnofficialVeeam WAN Accelerator
6165UnofficialVeeam WAN Accelerator Data Transfer
6167UnofficialVeeam Log Shipping Service
6170UnofficialVeeam Mount Server
6200UnofficialOracle WebCenter Content Portable: Content Server (With Native UI) and Inbound Refinery
6201AssignedThermo-Calc Software AB: Management of service nodes in a processing grid for thermodynamic calculations
UnofficialOracle WebCenter Content Portable: Admin
6225UnofficialOracle WebCenter Content Portable: Content Server Web UI
6227UnofficialOracle WebCenter Content Portable: JavaDB
6240UnofficialOracle WebCenter Content Portable: Capture
6244UnofficialOracle WebCenter Content Portable: Content Server—Intradoc Socket port
6255UnofficialOracle WebCenter Content Portable: Inbound Refinery—Intradoc Socket port
6257UnofficialWinMX (see also 6699)
6260Unofficialplanet M.U.L.E.
6262UnofficialSybase Advantage Database Server
6343YesSFlow, sFlow traffic monitoring
6346Yesgnutella-svc, gnutella (FrostWire, Limewire, Shareaza, etc.)
6347Yesgnutella-rtr, Gnutella alternate
6350YesApp Discovery and Access Protocol
6379YesRedis key-value data store
6389UnofficialEMC CLARiiON
6432YesPgBouncer—A connection pooler for PostgreSQL
6436UnofficialLeap Motion Websocket Server TLS
6437UnofficialLeap Motion Websocket Server
6443YesKubernetes API server 305
6444YesSun Grid Engine Qmaster Service
6445YesSun Grid Engine Execution Service
6454UnofficialArt-Net protocol
6463–6472UnofficialDiscord RPC 306
6464YesPort assignment for medical device communication in accordance to IEEE 11073-20701
6513YesNETCONF over TLS
6514YesSyslog over TLS 307
6515YesElipse RPC Protocol (REC)
6516UnofficialWindows Admin Center
6543UnofficialPylons project#Pyramid Default Pylons Pyramid web service port
6556UnofficialCheck MK Agent
6566YesSANE (Scanner Access Now Easy)—SANE network scanner daemon 308
6560–6561UnofficialSpeech-Dispatcher daemon
6571UnofficialWindows Live FolderShare client
6600YesMicrosoft Hyper-V Live
UnofficialMusic Player Daemon (MPD)
6601YesMicrosoft Forefront Threat Management Gateway
6602YesMicrosoft Windows WSS Communication
6619Yesodette-ftps, Odette File Transfer Protocol (OFTP) over TLS / SSL
6622YesMulticast FTP
6626YesSemaphore Messenger
6653YesAssignedOpenFlow 309
6660–6664UnofficialInternet Relay Chat (IRC)
6665–6669YesInternet Relay Chat (IRC)
6679YesOsorno Automation Protocol (OSAUT)
UnofficialInternet Relay Chat (IRC) SSL (Secure Internet Relay Chat)—often used
6690UnofficialSynology Cloud station
6697YesIRC SSL (Secure Internet Relay Chat)—often used
6699UnofficialWinMX (see also 6257)
6715UnofficialAberMUD and derivatives default port
6771UnofficialBitTorrent Local Peer Discovery
6783–6785UnofficialSplashtop Remote server broadcast
6801YesACNET Control System Protocol
6881–6887UnofficialBitTorrent beginning of range of ports used most often
6888YesMUSE
UnofficialBitTorrent continuation of range of ports used most often
6889–6900UnofficialBitTorrent continuation of range of ports used most often
6891–6900UnofficialWindows Live Messenger (File transfer)
6901UnofficialWindows Live Messenger (Voice)
UnofficialBitTorrent continuation of range of ports used most often
6902–6968UnofficialBitTorrent continuation of range of ports used most often
6924Yessplit-ping, ping with RX/TX latency/loss split
6935YesEthoScan Service
6936YesXenSource Management Service
6969Yesacmsoda
UnofficialBitTorrent tracker
6970–6999UnofficialBitTorrent end of range of ports used most often
UnofficialQuickTime Streaming Server 13
6980UnofficialVoicemeeter VBAN network audio protocol 310
7000UnofficialDefault for Vuze 's built-in HTTPS Bittorrent tracker
UnofficialAvira Server Management Console
7001UnofficialAvira Server Management Console
UnofficialDefault for BEA WebLogic Server 's HTTP server, though often changed during installation
7002UnofficialDefault for BEA WebLogic Server's HTTPS server, though often changed during installation
7005UnofficialDefault for BMC Software Control-M/Server and Control-M/Agent for Agent-to-Server, though often changed during installation
7006UnofficialDefault for BMC Software Control-M/Server and Control-M/Agent for Server-to-Agent, though often changed during installation
7010UnofficialDefault for Cisco AON AMC (AON Management Console) 311
7022UnofficialMSSQL Server Replication and Database mirroring endpoints 249
7023YesT2-NMCS Protocol for SatCom Modems
7025UnofficialZimbra LMTP [mailbox]—local mail delivery
7047UnofficialZimbra conversion server
7070UnofficialReal Time Streaming Protocol (RTSP), used by QuickTime Streaming Server. TCP is used by default, UDP is used as an alternate.13
7077YesDevelopment-Network Authentification-Protocol
7133UnofficialEnemy Territory: Quake Wars
7144UnofficialPeercast
7145UnofficialPeercast
7171UnofficialTibia
7262YesCNAP (Calypso Network Access Protocol)
7272YesWatchMe – WatchMe Monitoring
7306UnofficialZimbra mysql [mailbox]
7307UnofficialZimbra mysql [logger]
7312UnofficialSibelius License Server
7396UnofficialWeb control interface for Folding@home v7.3.6 and later 312
7400YesRTPS (Real Time Publish Subscribe) DDS Discovery
7401YesRTPS (Real Time Publish Subscribe) DDS User-Traffic
7402YesRTPS (Real Time Publish Subscribe) DDS Meta-Traffic
7471UnofficialStateless Transport Tunneling (STT)
7473YesRise: The Vieneo Province
7474YesNeo4J Server webadmin 313
7478YesDefault port used by Open iT Server.314
7542YesSaratoga file transfer protocol 315 316
7547YesCPE WAN Management Protocol (CWMP) Technical Report 069
7575UnofficialPopulous: The Beginning server
7624YesInstrument Neutral Distributed Interface
7631YesERLPhase
7634Unofficialhddtemp—Utility to monitor hard drive temperature
7652–7654UnofficialI2P anonymizing overlay network
7655UnofficialI2P SAM Bridge Socket API
7656–7660UnofficialI2P anonymizing overlay network
7659UnofficialPolypheny User Interface (database system)
7670UnofficialBrettspielWelt BSW Boardgame Portal
7680UnofficialDelivery Optimization for Windows 10 317
7687YesBolt database connection
7707–7708UnofficialKilling Floor
7717UnofficialKilling Floor
7745UnofficialHomeBox
7777UnofficialiChat server file transfer proxy 13
UnofficialOracle Cluster File System 2
UnofficialWindows backdoor program tini.exe default
UnofficialJust Cause 2: Multiplayer Mod Server
UnofficialTerraria default server
UnofficialUnofficialSuper Foosball multiplayer gameplay port
UnofficialSan Andreas Multiplayer (SA-MP) default port server
UnofficialSCP: Secret Laboratory Multiplayer Server
7777–7788YesSteam common default game server ports (Ark, L4D2, etc.)
7777–7788UnofficialUnreal Tournament series default server
7831UnofficialDefault used by Smartlaunch Internet Cafe Administration 318 software
7880YesPowerSchool Gradebook Server 4 319
7890UnofficialDefault that will be used by the iControl Internet Cafe Suite Administration software
7915UnofficialDefault for YSFlight server 320
7935UnofficialFixed port used for Adobe Flash Debug Player to communicate with a debugger (Flash IDE, Flex Builder or fdb).321
7946UnofficialDocker Swarm communication among nodes 177
7979UnofficialUsed by SilverBluff Studios for communication between servers and clients.
7990UnofficialAtlassian Bitbucket (default port)
8000UnofficialCommonly used for Internet radio streams such as SHOUTcast, Icecast 322 and iTunes Radio 13
UnofficialDynamoDB Local 323
UnofficialDjango Development Webserver 324
UnofficialPython 3 http.server 325
8005UnofficialTomcat remote shutdown 13
UnofficialPLATO ASCII protocol (RFC 600)
UnofficialWindows SCCM HTTP listener service 326
8006UnofficialQuest AppAssure 5 API 327
UnofficialNoProxmox Virtual Environment admin web interface 328
8007UnofficialQuest AppAssure 5 Engine 327
8007YesProxmox Backup Server admin web interface
8008UnofficialAlternative port for HTTP. See also ports 80 and 8080.
UnofficialIBM HTTP Server administration default
UnofficialiCal, a calendar application by Apple 13
UnofficialNoMatrix homeserver federation over HTTP 329
8009UnofficialApache JServ Protocol (ajp13)
8010UnofficialNoBuildbot web status page
8042UnofficialOrthanc – REST API over HTTP 227
8061YesReservedNikatron Device Protocol (nikatron-dev)
8069UnofficialOpenERP 5.0 XML-RPC protocol 330
8070UnofficialOpenERP 5.0 NET-RPC protocol 330
8074YesGadu-Gadu
8075UnofficialKilling Floor web administration interface
8080YesAlternative port for HTTP. See also ports 80 and 8008.
UnofficialApache Tomcat 331
UnofficialAtlassian JIRA applications 332
8081YesSun Proxy Admin Service 333
8088UnofficialAsterisk management access via HTTP
UnofficialYARN ResourceManager Web UI 334
8089UnofficialNoSplunk daemon management 335
UnofficialFritz!Box automatic TR-069 configuration 336
8090UnofficialAtlassian Confluence 337
UnofficialCoral Content Distribution Network (legacy; 80 and 8080 now supported) 338
UnofficialMatrix identity server
8091UnofficialCouchBase web administration 339
8092UnofficialCouchBase API 339
8096UnofficialEmby and Jellyfin HTTP port 340
8100UnofficialSaltoSystems - Pro Access Space Service
UnofficialBlueMap, a 3D Minecraft web viewer and mapping tool
8102UnofficialSaltoSystems - Used for LocalIO-Bridge for USB-Devices
8111UnofficialJOSM Remote Control
8112UnofficialPAC Pacifica Coin
8116UnofficialCheck Point Cluster Control Protocol
8118YesPrivoxy —advertisement-filtering Web proxy
8123UnofficialPolipo Web proxy
UnofficialHome Assistant Home automation
UnofficialMinecraft Dynmap plugin/mod
8124Unofficial
8125UnofficialStatsD server 341 342 343
8139UnofficialPuppet (software) Client agent
8140YesPuppet (software) Master server
8172UnofficialMicrosoft Remote Administration for IIS Manager 344
8181–8186UnofficialFRITZ!Box services
8184UnofficialNCSA Brown Dog Data Access Proxy
8188UnofficialComfyUI Web Interface
8194–8195YesBloomberg Terminal 345
8200UnofficialGoToMyPC
UnofficialMiniDLNA media server Web Interface
UnofficialElastic APM Server
8222UnofficialVMware VI Web Access via HTTP 346
8236UnofficialjRCS listener for Rocket Software jBASE Remote Connectivity Server 347
8243YesHTTPS listener for Apache Synapse 348
8245UnofficialDynamic DNS for at least No-IP and DynDNS 349
8280YesHTTP listener for Apache Synapse 348
8281UnofficialHTTP Listener for Gatecraft Plugin
8291UnofficialWinbox—Default on a MikroTik RouterOS for a Windows application used to administer MikroTik RouterOS 350
8303UnofficialTeeworlds Server
8332UnofficialBitcoin JSON-RPC server 351
8333UnofficialBitcoin 352
UnofficialVMware VI Web Access via HTTPS 346
8334UnofficialFilestash server (default) 353
8337UnofficialVisualSVN Distributed File System Service (VDFS) 354
8384UnofficialSyncthing web GUI
8388UnofficialShadowsocks proxy server
8400YesCommvault Communications Service 355 (GxCVD, found in all client computers)
8401YesCommvault Server Event Manager (GxEvMgrS, available in CommServe)
8403YesCommvault Firewall (GxFWD, tunnel port for HTTP/HTTPS)
8443UnofficialSW Soft Plesk Control Panel
UnofficialApache Tomcat SSL
UnofficialPromise WebPAM SSL
UnofficialiCal over SSL 13
UnofficialMineOs WebUi
8444UnofficialBitmessage
UnofficialChia 356
8448YesMatrix homeserver federation over HTTPS 329
8484UnofficialMapleStory Login Server
8500UnofficialAdobe ColdFusion built-in web server 357
8501UnofficialStreamlit Open-source Python framework for machine learning and data science
8530UnofficialWindows Server Update Services over HTTP, when using the default role installation settings in Windows Server 2012 and later versions.358 359
8531UnofficialWindows Server Update Services over HTTPS, when using the default role installation settings in Windows Server 2012 and later versions.358 359
8555UnofficialSymantec DLP OCR Engine 360
UnofficialChia JSON-RPC server 361
8580UnofficialFreegate, an Internet anonymizer and proxy tool 362
8601UnofficialWavestore VMS protocol 363
8611–8614YesCanon BubbleJet Network Protocol 364
8629UnofficialTibero database
8642UnofficialLotus Notes Traveler auto synchronization for Windows Mobile and Nokia devices 365
8691UnofficialUltra Fractal, a fractal generation and rendering software application – distributed calculations over networked computers 366 367
8765UnofficialNoDefault port of a local GUN relay peer that the Internet Archive 368 and others use as a decentralized mirror for censorship resistance.369
8767UnofficialVoice channel of TeamSpeak 2,370 a proprietary Voice over IP protocol targeted at gamers
8834UnofficialNessus, a vulnerability scanner – remote XML-RPC web server 371
8840UnofficialOpera Unite, an extensible framework for web applications 372 373
8880YesAlternate port of CDDB (Compact Disc Database) protocol, used to look up audio CD (compact disc) information over the Internet.374 See also port 888.
UnofficialIBM WebSphere Application Server SOAP connector 375
8883YesSecure MQTT (MQTT over TLS) 376 377
8887UnofficialHyperVM over HTTP
8888UnofficialHyperVM over HTTPS
UnofficialNoFreenet web UI (localhost only)
UnofficialDefault for IPython 378 / Jupyter 379 notebook dashboards
UnofficialMAMP 380
8889UnofficialMAMP 380
8920UnofficialJellyfin HTTPS port 340
8983UnofficialApache Solr 381
8997UnofficialAlternate port for I2P Monotone Proxy 191
8998UnofficialI2P Monotone Proxy 191
8999UnofficialAlternate port for I2P Monotone Proxy 191
9000UnofficialSonarQube Web Server 382
UnofficialClickHouse default port
UnofficialDBGp
UnofficialSqueezeCenter web server & streaming
UnofficialUDPCast
UnofficialPlay Framework web server 383
UnofficialHadoop NameNode default port
UnofficialPHP-FPM default port
UnofficialqBittorrent 's embedded torrent tracker default port 384
UnofficialEmidate
9001YesETL Service Manager 385
UnofficialMicrosoft SharePoint authoring environment
Unofficialcisco-xremote router configuration
UnofficialTor network default (ORPort)
UnofficialDBGp Proxy
UnofficialHSQLDB default port
UnofficialEmidate
9002UnofficialNewforma Server comms
UnofficialEmidate
9003UnofficialXdebug default client port 386
9006UnofficialTomcat in standalone mode 13
9008UnofficialZerto VRA encrypted communications listener
9030UnofficialTor network default (DirPort)
9042UnofficialApache Cassandra native protocol clients
9043UnofficialWebSphere Application Server Administration Console secure
9050–9051UnofficialTor (SOCKS-5 proxy)
9060UnofficialWebSphere Application Server Administration Console
9080Yesglrpc, Groove Collaboration software GLRPC
UnofficialWebSphere Application Server HTTP Transport (port 1) default
UnofficialRemote Potato by FatAttitude, Windows Media Center addon
UnofficialServerWMC, Windows Media Center addon
9081UnofficialZerto ZVM to ZVM communication
9090UnofficialCockpit
UnofficialPrometheus metrics server
UnofficialOpenfire Administration console
UnofficialSqueezeCenter control (CLI)
UnofficialCherokee Admin panel
9091UnofficialOpenfire Administration console (SSL secured)
UnofficialTransmission (BitTorrent client) Web interface
9092UnofficialH2 (DBMS) Database server
UnofficialApache Kafka A Distributed Streaming Platform 387
9095UnofficialNetworker Web user interface server
9100YesAssignedPDL Data Stream, used for printing to certain network printers 13
9101YesBacula Director
9102YesBacula File Daemon
9103YesBacula Storage Daemon
9116UnofficialSNMP-exporter (Prometheus) 388
9119YesMXit Instant Messenger
9150UnofficialTor browser
9191UnofficialSierra Wireless Airlink
9199UnofficialAvtex LLC—qStats
9200UnofficialElasticsearch 389 —default Elasticsearch port
9217UnofficialiPass Platform Service
9229UnofficialNodeJS debugging default port (localhost) 390
9293UnofficialSony PlayStation RemotePlay 391
9295UnofficialSony PlayStation Remote Play Session creation communication port
9296UnofficialSony PlayStation Remote Play
9297UnofficialSony PlayStation Remote Play Video stream
9300UnofficialIBM Cognos BI 392
9303UnofficialD-Link Shareport Share storage and MFP printers
9306YesSphinx Native API
9309UnofficialSony PlayStation Vita Host Collaboration WiFi Data Transfer 393
9312YesSphinx SphinxQL
9332UnofficialLitecoin JSON-RPC server
9333UnofficialLitecoin
9339UnofficialUsed by all Supercell games such as Brawl Stars and Clash of Clans, mobile freemium strategy video games
9389Yesadws, Microsoft AD DS Web Services, Powershell uses this port
9392UnofficialNoOpenVAS Greenbone Security Assistant web interface
9418Yesgit, Git pack transfer service
9419UnofficialMooseFS distributed file system – master control port 394
9420UnofficialMooseFS distributed file system – master command port 394
9421UnofficialMooseFS distributed file system – master client port 394
9422UnofficialMooseFS distributed file system – Chunkservers 394
9425UnofficialMooseFS distributed file system – CGI server 394
9443UnofficialVMware Websense Triton console (HTTPS port used for accessing and administrating a vCenter Server via the Web Management Interface)
UnofficialNCSA Brown Dog Data Tilling Service
9535Yesmngsuite, LANDesk Management Suite Remote Control
9536Yeslaes-bf, IP Fabrics Surveillance buffering function
9600NoUnofficialFactory Interface Network Service (FINS), a network protocol used by Omron programmable logic controllers
9669UnofficialNoVGG Image Search Engine VISE 395
9675UnofficialSpiceworks Desktop, IT Helpdesk Software
9676UnofficialSpiceworks Desktop, IT Helpdesk Software
9695YesContent centric networking (CCN, CCNx)
9735UnofficialBitcoin Lightning Network 396
9785UnofficialViber 229
9800YesWebDAV Source
UnofficialWebCT e-learning portal
9875UnofficialClub Penguin Disney online game for kids
9876UnofficialV Rising Dedicated server 397
9877UnofficialV Rising Dedicated server 397
9898UnofficialTripwire —File Integrity Monitoring Software 398
9899YesSCTP tunneling (port number used in SCTP packets encapsulated in UDP, RFC 6951)
9901UnofficialBanana for Apache Solr
9981UnofficialTvheadend HTTP server (web interface) 399
9982UnofficialTvheadend HTSP server (Streaming protocol) 399
9987UnofficialNoTeamSpeak 3 server default (voice) port (for the conflicting service see the IANA list) 400
9993UnofficialZeroTier Default port for ZeroTier
9997UnofficialSplunk port for communication between the forwarders and indexers
9999UnofficialUrchin Web Analytics
UnofficialDash (cryptocurrency) 401
10000YesNetwork Data Management Protocol (NDMP) Control stream for network backup and restore.
UnofficialBackupExec
UnofficialWebmin, Web-based Unix/Linux system administration tool (default port)
10000–20000NoUnofficialUsed 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.402
10001UnofficialUbiquiti UniFi access points broadcast to 255.255.255.255:10001 (UDP) to locate the controller(s)
10009UnofficialCrossfire, a multiplayer online First Person Shooter
10011UnofficialNoTeamSpeak 3 ServerQuery 400
10022UnofficialNoTeamSpeak 3 ServerQuery over SSH
10024UnofficialZimbra smtp [mta]—to amavis from postfix
10025UnofficialZimbra smtp [mta]—back to postfix from amavis
10042UnofficialMathoid server 403
10050YesZabbix agent
10051YesZabbix trapper
10110YesNMEA 0183 Navigational Data. Transport of NMEA 0183 sentences over TCP or UDP
10172UnofficialIntuit Quickbooks client
10200UnofficialFRISK Software International 's fpscand virus scanning daemon for Unix platforms 404
UnofficialFRISK Software International's f-protd virus scanning daemon for Unix platforms 405
10201–10204UnofficialFRISK Software International's f-protd virus scanning daemon for Unix platforms 405
10212YesGE Intelligent Platforms Proficy HMI/SCADA – CIMPLICITY WebView 406
10308UnofficialDigital Combat Simulator Dedicated Server 407
10346NoTEKWorx Limited – interfaceIT board protocol
10468UnofficialFlyer – discovery protocol
10480UnofficialSWAT 4 Dedicated Server
10505UnofficialBlueStacks (android simulator) broadcast 408
10514UnofficialTLS-enabled Rsyslog (default by convention)
10578UnofficialNoSkyrim Together multiplayer server for The Elder Scrolls V: Skyrim mod.
10800UnofficialTouhou versus games (Immaterial and Missing Power, Phantasmagoria of Flower View, Scarlet Weather Rhapsody, Hisoutensoku, Hopeless Masquerade and Urban Legend in Limbo)
10801UnofficialBag With Friends multiplayer server for the Peaks of Yore mod.
10823UnofficialFarming Simulator 2011
10891UnofficialJungle Disk (this port is opened by the Jungle Disk Monitor service on the localhost)
10933YesNoOctopus Deploy Tentacle deployment agent 409
11100NoUnofficialRisk of Rain multiplayer server
11111UnofficialRiCcI, Remote Configuration Interface (Redhat Linux)
11112YesACR / NEMA Digital Imaging and Communications in Medicine (DICOM)
11211Unofficialmemcached 13
11214Unofficialmemcached incoming SSL proxy
11215Unofficialmemcached internal outgoing SSL proxy
11235YesXCOMPUTE numerical systems messaging (Xplicit Computing) 410
11311UnofficialRobot Operating System master
11371YesOpenPGP HTTP key server
11434UnofficialOllama to run LLM locally 411
11753UnofficialOpenRCT2 multiplayer 412
12000UnofficialCubeForm, Multiplayer SandBox Game
12012UnofficialAudition Online Dance Battle, Korea Server—Status/Version Check
12013UnofficialAudition Online Dance Battle, Korea Server
12035UnofficialSecond Life, used for server UDP in-bound 413
12043UnofficialSecond Life, used for LSL HTTPS in-bound 414
12046UnofficialSecond Life, used for LSL HTTP in-bound 414
12201UnofficialGraylog Extended Log Format (GELF) 415
12222YesLight Weight Access Point Protocol (LWAPP) LWAPP data (RFC 5412)
12223YesLight Weight Access Point Protocol (LWAPP) LWAPP control (RFC 5412)
12307UnofficialMakerbot UDP Broadcast (client to printer) (JSON-RPC) 416
12308UnofficialMakerbot UDP Broadcast (printer to client) (JSON-RPC) 416
12345UnofficialCube World 417
UnofficialLittle Fighter 2
UnofficialNetBus remote administration tool (often Trojan horse).
12443UnofficialIBM HMC web browser management access over HTTPS instead of default port 443 418
12489UnofficialNSClient/NSClient++/NC_Net (Nagios)
12975UnofficialLogMeIn 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
13000–13050UnofficialSecond Life, used for server UDP in-bound 419
13008UnofficialCrossfire, a multiplayer online First Person Shooter
13075YesDefault 420 for BMC Software Control-M/Enterprise Manager Corba communication, though often changed during installation
13400YesISO 13400 Road vehicles — Diagnostic communication over Internet Protocol (DoIP)
13720YesSymantec NetBackup —bprd (formerly VERITAS)
13721YesSymantec NetBackup—bpdbm (formerly VERITAS)
13724YesSymantec Network Utility—vnetd (formerly VERITAS)
13782YesSymantec NetBackup—bpcd (formerly VERITAS)
13783YesSymantec VOPIED protocol (formerly VERITAS)
13785YesSymantec NetBackup Database—nbdb (formerly VERITAS)
13786YesSymantec nomdb (formerly VERITAS)
14550UnofficialMAVLink Ground Station Port
14567UnofficialBattlefield 1942 and mods
14652UnofficialRepgen DoxBox reporting tool
14800UnofficialAge of Wonders III p2p port 421
15000UnofficialpsyBNC
UnofficialWesnoth
UnofficialKaspersky Network Agent 422
UnofficialTeltonika networks remote management system (RMS)
15009UnofficialTeltonika networks remote management system (RMS)
15010UnofficialTeltonika networks remote management system (RMS)
15441UnofficialZeroNet fileserver
15567UnofficialBattlefield Vietnam and mods
15345YesXPilot Contact
15672UnofficialNoRabbitMQ management plugin 423
16000UnofficialOracle WebCenter Content: Imaging (formerly known as Oracle Universal Content Management). Port though often changed during installation
UnofficialshroudBNC
16080UnofficialmacOS Server Web (HTTP) service with performance cache 424
16200UnofficialOracle WebCenter Content: Content Server (formerly known as Oracle Universal Content Management). Port though often changed during installation
16225UnofficialOracle WebCenter Content: Content Server Web UI. Port though often changed during installation
16250UnofficialOracle WebCenter Content: Inbound Refinery (formerly known as Oracle Universal Content Management). Port though often changed during installation
16261UnofficialProject Zomboid multiplayer. Additional sequential ports used for each player connecting to server.
16300UnofficialOracle WebCenter Content: Records Management (formerly known as Oracle Universal Records Management). Port though often changed during installation
16379UnofficialRedis Cluster bus 425
16384UnofficialCISCO Default RTP MIN
16384–16403UnofficialReal-time Transport Protocol (RTP), RTP Control Protocol (RTCP), used by Apple 's iChat for audio and video 13
16384–16387UnofficialReal-time Transport Protocol (RTP), RTP Control Protocol (RTCP), used by Apple's FaceTime and Game Center 13
16393–16402UnofficialReal-time Transport Protocol (RTP), RTP Control Protocol (RTCP), used by Apple's FaceTime and Game Center 13
16403–16472UnofficialReal-time Transport Protocol (RTP), RTP Control Protocol (RTCP), used by Apple's Game Center 13
16400UnofficialOracle WebCenter Content: Capture (formerly known as Oracle Document Capture). Port though often changed during installation
16567UnofficialBattlefield 2 and mods
17000UnofficialM17 – Digital RF voice and data protocol with Internet (UDP) gateways (reflectors).426
17011UnofficialWorms multiplayer
17224YesTrain Realtime Data Protocol (TRDP) Process Data, network protocol used in train communication.4 427
17225YesTrain Realtime Data Protocol (TRDP) Message Data, network protocol used in train communication.4 428
17333UnofficialCS Server (CSMS), default binary protocol port
17472UnofficialTanium Communication Port
17474UnofficialDMXControl 3 Network Discovery 429
17475UnofficialDMXControl 3 Network Broker 429
17476UnofficialDMXControl 3 Network Broker TLS 429
17500YesDropbox LanSync Protocol (db-lsp); used to synchronize file catalogs between Dropbox clients on a local network.
18080UnofficialNoMonero P2P network communications 430
18081UnofficialNoMonero incoming RPC calls 430
18091Unofficialmemcached Internal REST HTTPS for SSL
18092Unofficialmemcached Internal CAPI HTTPS for SSL
18104YesRAD PDF Service
18200UnofficialAudition Online Dance Battle, AsiaSoft Thailand Server status/version check
18201UnofficialAudition Online Dance Battle, AsiaSoft Thailand Server
18206UnofficialAudition Online Dance Battle, AsiaSoft Thailand Server FAM database
18300UnofficialAudition Online Dance Battle, AsiaSoft SEA Server status/version check
18301UnofficialAudition Online Dance Battle, AsiaSoft SEA Server
18306UnofficialAudition Online Dance Battle, AsiaSoft SEA Server FAM database
18333UnofficialBitcoin testnet
18400UnofficialAudition Online Dance Battle, KAIZEN Brazil Server status/version check
18401UnofficialAudition Online Dance Battle, KAIZEN Brazil Server
18505UnofficialAudition Online Dance Battle R4p3 Server, Nexon Server status/version check
18506UnofficialAudition Online Dance Battle, Nexon Server
18605UnofficialX-BEAT status/version check
18606UnofficialX-BEAT
18676UnofficialYouView
18769YesiQue Protocol
19000UnofficialAudition Online Dance Battle, G10/alaplaya Server status/version check
UnofficialJACK sound server
19001UnofficialAudition Online Dance Battle, G10/alaplaya Server
19132UnofficialMinecraft: Bedrock Edition multiplayer server 431
19133UnofficialMinecraft: Bedrock Edition IPv6 multiplayer server 431
19150UnofficialGkrellm Server
19226UnofficialPanda Software AdminSecure Communication Agent
19294UnofficialGoogle Talk Voice and Video connections 432
19295UnofficialGoogle Talk Voice and Video connections 432
19302UnofficialGoogle Talk Voice and Video connections 432
19531UnofficialNosystemd -journal-gatewayd 433
19532UnofficialNosystemd -journal-remote 434
19788NoYesMesh Link Establishment protocol for IEEE 802.15.4 radio mesh networks 435
19771UnofficialSoftros LAN Messenger uses TCP and UDP ports for collecting user lists and sending messages 436
19812YesNo4D database SQL Communication 437
19813Yes4D database Client Server Communication 437
19814Yes4D database DB4D Communication 437
19880UnofficialSoftros LAN Messenger uses TCP port for file transfers 436
19999YesDistributed Network Protocol—Secure (DNP —Secure), a secure version of the protocol used in SCADA systems between communicating RTU 's and IED 's
20000YesDistributed Network Protocol (DNP), a protocol used in SCADA systems between communicating RTU 's and IED 's
YesOpenWebNet, communications protocol used in Bticino products
UnofficialUsermin, Web-based Unix/Linux user administration tool (default port)
UnofficialUsed 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.402
20560UnofficialKilling Floor
20580UnofficialUnofficialWalljam device communications
20581UnofficialUnofficialWalljam device communications
20595Unofficial0 A.D. Empires Ascendant
20808UnofficialAbleton Link
21025UnofficialStarbound Server (default), Starbound 438
21064UnofficialDefault Ingres DBMS server
22000UnofficialSyncthing (default)
22067UnofficialSyncthing Relay Server (strelaysrv)
22070UnofficialSyncthing Relay Server (strelaysrv) - Status service
22136UnofficialFLIR Systems 439 Camera Resource Protocol
22222UnofficialDavis Instruments, WeatherLink IP 440
22347YesWibuKey, WIBU-SYSTEMS AG Copy protection
22350YesCodeMeter, WIBU-SYSTEMS AG Copy protection
22351YesCodeMeter-CmWAN, WIBU-SYSTEMS AG Copy protection
23073UnofficialSoldat Dedicated Server
23399UnofficialSkype default protocol
23513UnofficialDuke Nukem 3D source ports
24441UnofficialPyzor spam detection network
24444UnofficialNetBeans integrated development environment
24465YesTonido Directory Server for Tonido 441 which is a Personal Web App and P2P platform
24554YesBINKP, Fidonet mail transfers over TCP/IP
24800UnofficialSynergy: keyboard/mouse sharing software
24842UnofficialStepMania: Online: Dance Dance Revolution Simulator
25565UnofficialMinecraft (Java Edition) multiplayer server 442
UnofficialMinecraft (Java Edition) multiplayer server query 443
25575UnofficialMinecraft (Java Edition) multiplayer server RCON 444
25734-25735UnofficialSOLIDWORKS SolidNetworkLicense Manager 445
25826Unofficialcollectd default port 446
26000Yesid Software 's Quake server
UnofficialEVE Online, iVentoy webGUI (see Ventoy)
UnofficialXonotic, an open-source arena shooter
26822UnofficialMSI MysticLight
26900–26901UnofficialEVE Online
26909–26911UnofficialAction Tanks Online
27000UnofficialPowerBuilder SySAM license server
27000–27006Unofficialid Software 's QuakeWorld master server
27000–27009YesFlexNet Publisher 's License server (from the range of default ports)
27000–27015NoUnofficialSteam (game client traffic) 447
27015NoUnofficialGoldSrc, Source engine and Source 2 engine dedicated server port 447
27015–27018UnofficialUnturned, a survival game
27015–27030NoUnofficialSteam (matchmaking and HLTV) 447
UnofficialSteam (downloads) 447
27016UnofficialMagicka and Space Engineers server port
27017UnofficialNoMongoDB daemon process (mongod) and routing service (mongos) 448
27031–27035NoUnofficialSteam (In-Home Streaming) 447
27036UnofficialSteam (In-Home Streaming) 447
27100UnofficialScreen Play Games controller
27374UnofficialSub7 default.
27500–27900Unofficialid Software 's QuakeWorld
27888UnofficialKaillera server
27901–27910Unofficialid Software 's Quake II master server
27950UnofficialOpenArena outgoing
27960–27969UnofficialActivision '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)
28000YesSiemens Digital Industries Software license server 4
28001UnofficialStarsiege: Tribes
28015UnofficialRust (video game) 449
28016UnofficialRust (video game) RCON 450
28200AssignedVoxelStorm game server
28260UnofficialPalo Alto Networks' Panorama HA-1 backup unencrypted sync port.29
28443UnofficialPalo Alto Networks' Panorama-to-managed devices software updates, PAN-OS 8.0 and later.217
28769UnofficialPalo Alto Networks' Panorama HA unencrypted sync port.29
28770UnofficialPalo Alto Networks' Panorama HA-1 backup sync port.29
28770–28771UnofficialAssaultCube Reloaded, a video game based upon a modification of AssaultCube
28785–28786UnofficialCube 2: Sauerbraten 451
28852UnofficialKilling Floor
28910UnofficialNintendo Wi-Fi Connection 452
28960UnofficialCall of Duty; Call of Duty: United Offensive; Call of Duty 2; Call of Duty 4: Modern Warfare Call of Duty: World at War (PC platform) 453
29000YesSiemens Digital Industries Software license server 4
29070UnofficialJedi Knight: Jedi Academy by Ravensoft
29900–29901UnofficialNintendo Wi-Fi Connection 452
29920UnofficialNintendo Wi-Fi Connection 452
30000UnofficialXLink Kai P2P
UnofficialLuanti server default port 454
UnofficialFoundry Virtual Tabletop server default port 455
30003YesYesAmicon FPSU-IP Remote Administration
30004YesYesAmicon FPSU-IP VPN
30033UnofficialNoTeamSpeak 3 File Transfer 400
30120UnofficialFivem (Default Port) GTA V multiplayer 456
30564UnofficialMultiplicity: keyboard/mouse/clipboard sharing software
30814UnofficialBeamMP: Unofficial BeamNG.drive multiplayer mod. Default server port
31337UnofficialBack Orifice and Back Orifice 2000 remote administration tools 457 458
Unofficialncat, a netcat alternative 459
31416UnofficialBOINC RPC 460
31438UnofficialRocket U2 461
31457YesTetriNET
32137UnofficialImmunet Protect (UDP in version 2.0,462 TCP since version 3.0 463)
32400YesPlex Media Server 464
32764UnofficialA backdoor found on certain Linksys, Netgear and other wireless DSL modems/combination routers 465
32887UnofficialAce of Spades, a multiplayer FPS video game 466
32976UnofficialLogMeIn Hamachi, a VPN application; also TCP port 12975 and SSL (TCP 443).467
33434Yestraceroute
33848UnofficialJenkins, a continuous integration (CI) tool 468 469
34000UnofficialInfestation: Survivor Stories (formerly known as The War Z), a multiplayer zombie video game
34197NoUnofficialFactorio, a multiplayer survival and factory-building game 470
35357YesOpenStack Identity (Keystone) administration 471
36330UnofficialFolding@home Control Port
37008UnofficialTZSP intrusion detection
38412YesNG Application Protocol (NGAP) for communication between a gNB and AMF in 5G core networks 472 473
40000YesSafetyNET p – a real-time Industrial Ethernet protocol
41121YesReservedTentacle Server 474Pandora FMS
41230AssignedYesZ-Wave Protocol over DTLS 475
41794YesCrestron Control Port 476Crestron Electronics
41795YesCrestron Terminal Port 477Crestron Electronics
41796YesNoCrestron Secure Control Port 478Crestron Electronics
41797YesNoCrestron Secure Terminal Port 479Crestron Electronics
42081–42090YesZippin –Zippin Store 480
42590–42595YesGlue – MakePro X 481
42999YesCuriosity 482
43110UnofficialZeroNet web UI default port 483
43594–43595UnofficialRuneScape 484
44123AssignedUnofficialZ-Wave Secure Tunnel 485
44405UnofficialMu Online Connect Server
44818YesEtherNet/IP explicit messaging
47808–47823YesBACnet Building Automation and Control Networks (47808 10 = BAC0 16 to 47823 10 = BACF 16)
48556Yesdrive.web AC/DC Drive Automation and Control Networks 486
48656UnofficialBrainy LAB 487 Control Server
48657UnofficialBrainy LAB 487 Control Server
49151Reserved"IANA Reserved" 4

The range 49152–65535 (2 15 + 2 14 to 2 16 − 1), 16 384 ports, contains dynamic or private ports that cannot be registered with IANA.6 This range is used for private or customized services, for temporary purposes, and for automatic allocation of ephemeral ports.

Dynamic, private or ephemeral ports
PortTCPUDPSCTPDCCPDescription
49152–65535UnofficialNoCertificate Management over CMS 489 and Xsan Filesystem Access 490
49160UnofficialPalo Alto Networks' Panorama.217
50160UnofficialS-CONNECT protocol - data exchange (TCP) and manual device pairing (UDP).491
50161UnofficialS-CONNECT protocol - automatic device pairing.491
51413UnofficialTransmission (BitTorrent client) 492
51515UnofficialKopia server 493
51820NoUnofficialWireGuard protocol 494
52380NoUnofficialSony VISCA Network Setting Protocol 495
52381NoUnofficialSony VISCA over IP Protocol 495
59100UnofficialAudioRelay 496
60000–61000NoUnofficialRange from which Mosh – a remote-terminal application similar to SSH – typically assigns ports for ongoing sessions between Mosh servers and Mosh clients.497
61616UnofficialActiveMQ Classic 498
62078UnofficialApple's lockdownd protocol – used for communicating with iPhones and iPads.499
64738UnofficialMumble 500

Note

See also

7

  • Stretch, Jeremy. “Common Ports” (PDF). PacketLife.net. Archived (PDF) from the original on 2018-03-28. Retrieved 2019-02-09.

Further reading

  • Windows SBS 2008 must allow connections through TCP ports 80, 443, 987, and 3389.
  • The computer used to connect to Remote Web Workplace must allow connections through TCP ports 80, 443, 987, and 3389.
  • Routers on Windows SBS 2008 must be configured to forward Internet traffic to TCP ports 80, 443, 987, and 3389.

sails lift

Your app will be running on localhost:1337. Let’s test it…

  • TCP: 80, 443, 3478, 3479, 3480
  • UDP: 3478, 3479

  • Create a DICOM server with the DICOM AET (Application Entity Title) ORTHANC that listens on the port 4242.
  • Create a HTTP server for the REST API that listens on the port 8042.

  • On WSUS 3.2 and earlier, port 80 for HTTP and 443 for HTTPS
  • On WSUS 6.2 and later (at least Windows Server 2012), port 8530 for HTTP and 8531 for HTTPS

  • 9981 – HTTP server (web interface)
  • 9982 – HTSP server (Streaming protocol)

  • TCP: Allow traffic to all destinations on ports: 28910, 29900, 29901, 29920, 80, and 443.
  • UDP: Allow all traffic to all destinations. (Necessary for peer-to-peer connections and game play).

  • TCP 12975 (initiator port)
  • TCP 32976 (session port)

If the above ports cannot be used to achieve a connection, Hamachi will try again using SSL (TCP 443)…

Footnotes

  1. “Service Name and Transport Protocol Port Number Registry”. Internet Assigned Numbers Authority. Retrieved 8 October 2023.

  2. “Service Name and Transport Protocol Port Number Registry”. The Internet Assigned Numbers Authority (IA). 2 3

  3. 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. 2 3

  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)](https://linux.die.net/man/5/services)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. Internet Assigned Numbers Authority (IANA) Procedures for the Management of the Service Name and Transport Protocol Port Number Registry. IETF. August 2011. doi:10.17487/RFC6335. RFC 6335.

  7. Touch, J., Lear, E., Kojo, M., Ono, K., Stiemerling, M., Eddy, W., Trammell, B., Iyengar, J., Scharf, M., Tuexen, M., Kohler, E., & Nishida, Y. (May 24, 2022). “Service name and Transport Protocol Port Number Registry”. www.iana.org. Retrieved May 25, 2022.{{[cite web](https://en.wikipedia.org/wiki/Template:Cite_web "Template:Cite web")}}: CS1 maint: multiple names: authors list ()