Commonly used TCP and UDP ports

Commonly used tcp and udp ports

This is a list of commonly used tcp and udp ports used by application communication with TCP and UDP on the Transport Layer of the Internet Protocol Suite for the host-to-host communications.

Registered ports

Registered Ports (Numbers 1024 to 49151) – These port numbers are assigned to user processes or applications. These processes are primarily individual applications that a user has chosen to install rather than common applications that would receive a Well Known Port. When not used for a server resource, these ports may also be used dynamically selected by a client as its source port.

DescriptionPort numberProtocol
The Internet Assigned Numbers1024TCPUDP
Authority (IANA) port number reserver
NFS or IIS or Teradata1025TCP
Often used by Microsoft DCOM1026TCP
Often used by Microsoft DCOM1029TCP
nim, IBM AIX Network1058TCPUDP
Installation Manager (NIM)
nimreg, IBM AIX Network1059TCPUDP
Installation Manager (NIM)
SOCKS proxy1080TCP
rmiactivation, RMI Activation1098TCPUDP
rmiregistry, RMI Registry1099TCPUDP
The Internet Assigned Numbers1109UDP
Authority (IANA) port number reserver
The Internet Assigned Numbers1109TCP
Authority (IANA) port number reserver
Kerberos Post Office Protocol1109TCP
EasyBits School network1110UDP
discovery protocol (for Intel’s CMPC platform)
AutoNOC protocol1140TCPUDP
phone, conference calling1167UDP
Perceptive Automation Indigo1176TCP
Home automation server
AcceleNet Intelligent Transfer1182TCPUDP
The cajo project Free dynamic1198TCPUDP
transparent distributed computing in Java
scol, protocol used by SCOL 3D1200TCP
virtual worlds server to answer world name resolution client request 39
scol, protocol used by SCOL 3D1200UDP
virtual worlds server to answer world name resolution client request
Steam Friends Applet1200UDP
Uvora Online1217TCP
QuickTime Streaming Server1220TCP
TGP, TrulyGlobal Protocol, also1223TCPUDP
known as “The Gur Protocol” (named for Gur Kimchi of TrulyGlobal)
VLC media player Default port1234UDP
for UDP/RTP stream
Symantec BindView Control UNIX1236TCP
Default port for TCP management server connections
Nessus Security Scanner1241TCPUDP
Microsoft System Center1270TCPUDP
Operations Manager (SCOM) (formerly Microsoft Operations Manager (MOM)) agent
IPSec (Internet Protocol1293TCPUDP
Palmer Performance OBDNet1301TCP
Altera Quartus jtagd1309TCP
Dell OpenManage HTTPS1311TCP
Xbiim (Canvii server)1313TCP
Men and Mice DNS1337UDP
Men and Mice DNS1337TCP
PowerFolder P2P Encrypted File1337TCP
Synchronization Program
WASTE Encrypted File Sharing1337TCP
Internet Content Adaptation1344TCP
IBM Lotus Notes/Domino 40 (RPC) protocol1352TCP
cadsi-lm, LMS International1387TCPUDP
(formerly Computer Aided Design Software, Inc. (CADSI)) LM
IBM WebSphere MQ (formerly known1414TCP
as MQSeries)
Timbuktu Service 1 Port1417TCPUDP
Timbuktu Service 2 Port1418TCPUDP
Timbuktu Service 3 Port1419TCPUDP
Timbuktu Service 4 Port1420TCPUDP
Reverse Gossip Transport1431TCP
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
MSSQL (Microsoft SQL Server1433TCP
database management system) Server
MSSQL (Microsoft SQL Server1434TCPUDP
database management system) Monitor
Solarwinds Kiwi Log Server1470TCP
Citrix XenApp Independent1494TCP
Computing Architecture (ICA) thin client protocol
NetGuard GuardianPro firewall1500TCP
(NT4-based) Remote Management
NetGuard GuardianPro firewall1501UDP
(NT4-based) Authentication Client
Windows Live Messenger1503TCPUDP
(Whiteboard and Application Sharing)
Microsoft Windows Internet Name1512TCPUDP
Service (WINS)
Garena Garena Gaming Client1513TCPUDP
nCube License Manager1521TCP
Oracle database default1521TCP
listener, in future releases official port 2483
ingreslock, ingres1524TCPUDP
Oracle database common1526TCP
alternative for listener
Apache Derby Network Server1527TCP
default port
IBM Sametime IM—Virtual1533TCP
Places Chat Microsoft SQL Server
Eclipse Target Communication1534UDP
Framework (TCF) agent discovery 41
3m-image-lm Image Storage1550TCPUDP
license manager 3M Company
Gadu-Gadu (direct1550
Jeex-RB (direct1556TCP
MIL STD 2045-47001 VMF1581UDP
Cisco VQP (VLAN Query Protocol)1589UDP
GE Smallworld Datastore Server1590TCP
(SWMFS/Smallworld Master Filesystem)
radius auth, RADIUS1645TCPUDP
authentication protocol (default for Cisco and Juniper Networks RADIUS
radius acct, RADIUS1646TCPUDP
authentication protocol (default for Cisco and Juniper Networks RADIUS
Novell GroupWise clients in1677TCPUDP
client/server access mode
Microsoft Key Management Service1688TCP
for KMS Windows Activation
Cisco RADIUS Change of1700UDP
Authorization for TrustSec
Layer 2 Forwarding Protocol1701UDP
(L2F) & Layer 2 Tunneling Protocol (L2TP)
Windward Studios1707TCPUDP
Romtoc Packet Protocol (L2F)1707TCP
& Layer 2 Tunneling Protocol (L2TP)
America’s Army Massively1716TCP
multiplayer online game (MMO)
H.323 Registration and alternate1719UDP
H.323 Call signalling1720TCP
Microsoft Point-to-Point1723TCPUDP
Tunneling Protocol (PPTP)
Valve Steam Client1725UDP
Microsoft Media Services (MMS,1755TCPUDP
Novell Zenworks Remote Control1761TCP
cft-1 to cft-71762–1768TCPUDP
Microsoft Message Queuing1801TCPUDP
radius, RADIUS authentication1812TCPUDP
radacct, RADIUS accounting1813TCPUDP
MSNP (Microsoft Notification1863TCP
Protocol), used by the .NET Messenger Service and a number of Instant
Messaging clients
MQ Telemetry Transport (MQTT),1883TCPUDP
formerly known as MQIsdp (MQSeries SCADA protocol)
Leonardo over IP Pro2col Ltd1886TCP
Microsoft SSDP Enables discovery1900UDP
of UPnP devices
IBM Tivoli Monitoring Console1920TCP
Adobe Systems Macromedia Flash1935TCP
Real Time Messaging Protocol (RTMP) “plain” protocol
SentinelSRM (hasplm), Aladdin1947TCPUDP
HASP License Manager
Cisco IOS IP Service Level1967UDP
Agreements (IP SLAs) Control Protocol
Netop Business Solutions Netop1970TCPUDP
Remote Control
Netop Business Solutions Netop1971TCPUDP
InterSystems Caché1972TCPUDP
Cisco TCO (Documentation)1975–1977UDP
Big Brother and related Xymon1984TCP
(formerly Hobbit) System and Network Monitor
Cisco HSRP1985UDP
Cisco STUN-SDLC (Serial1994TCPUDP
Tunneling—Synchronous Data Link Control) protocol
Chizmo Networks Transfer Tool1997TCP
Cisco X.25 over TCP (XOT)1998TCPUDP
Cisco SCCP (Skinny)2000TCPUDP
CAPTAN Test Stand System2001UDP
Secure Access Control Server2002TCP
(ACS) for Windows
Oracle Services for Microsoft2030
Transaction Server
Mail.Ru Agent communication2041TCP
Network File System2049UDP
knetd Kerberos de-multiplexor2053TCP
Civilization 4 multiplayer2056UDP
Vertel VMF SA (i.e. App..2074TCPUDP
Infowave Mobility Server2082TCP
CPanel default2082TCP
Secure Radius Service (radsec)2083TCP
CPanel default SSL2083TCP
WebHost Manager default2086TCP
WebHost Manager default SSL2087TCP
CPanel default Web mail2095TCP
CPanel default SSL Web mail2096TCP
zephyr-srv Project Athena Zephyr2102TCPUDP
Notification Service server
zephyr-clt Project Athena Zephyr2103TCPUDP
Notification Service serv-hm connection
zephyr-hm Project Athena Zephyr2104TCPUDP
Notification Service hostmanager
eklogin Kerberos encrypted2105TCPUDP
remote login (rlogin)
zephyr-hm-srv Project Athena2105TCPUDP
Zephyr Notification Service hm-serv connection (should use port 2102)
FTP proxy2121TCP
Iron Mountain LiveVault Agent2144TCP
Iron Mountain LiveVault Agent2145TCP
Talari Reliable Protocol2156UDP
APC Agent2160TCP
APC Agent2161TCP
EForward-document transport2181TCPUDP
TiVoConnect Beacon2190UDP
Tuxanci game server 422200UDP
NOAAPORT Broadcast Network2210UDP
NOAAPORT Broadcast Network2210TCP
MikroTik Remote management for2210TCP
“The Dude”
MikroTik Secure management for2211TCP
“The Dude”
LeeCO POS Server Service2212UDP
LeeCO POS Server Service2212TCP
Port-A-Pour Remote WinBatch2212TCP
NetIQ NCAP Protocol2219TCPUDP
NetIQ End2End2220TCPUDP
ESET Anti-virus updates2221TCP
DirectAdmin default & ESET2222TCP
Remote Administration
Microsoft Office OS X antipiracy2223UDP
network monitor
CoMotion Master2261TCPUDP
CoMotion Backup2262TCPUDP
HP System Management Redirect to2301TCP
port 2381
ArmA multiplayer (default for2302UDP
Halo: Combat Evolved multiplayer2302UDP
ArmA multiplayer (default for2303UDP
server reporting) (default port for game +1)
ArmA multiplayer (default for2305UDP
VoN) (default port for game +3)
Philips TVs based on2323TCP
jointSPACE 43
Default for BMC Software2369TCP
Control-M/Server—Configuration Agent, though often changed during
Default for BMC Software2370TCP
Control-M/Server—to allow the Control-M/Enterprise Manager to connect
to the Control-M/Server, though often changed during installation
KGS Go Server2379TCP
HP Insight Manager default for2381TCP
Web server
CVS version control system2401TCP
IEC 60870-5 -104, used to send2404TCP
electric power telecontrol messages between two systems via directly
connected data circuits
Westell Remote Access2420UDP
Cisco MGCP2427UDP
ovwdb—OpenView Network2447TCPUDP
Node Manager (NNM) daemon
Oracle database listening for2483TCPUDP
unsecure client connections to the listener, replaces port 1521
Oracle database listening for2484TCPUDP
SSL client connections to the listener
THEÒSMESSENGER listening for2500TCP
TheòsMessenger client connections
TheosNet-Admin listening for2501TCP
TheòsMessenger client connections
SMTP alternate2525TCP
EVault—Data Protection2546TCPUDP
RunUO—Ultima Online server2593TCPUDP
new ICA (Citrix) —when2598TCP
Session Reliability is enabled, TCP port 2598 replaces port 1494
SonicWALL Antispam traffic2599TCP
between Remote Analyzer (RA) and Control Center (CC)
Dark Ages2610TCP
QPasa from MQSoftware2612TCPUDP
Sybase database listener2638TCP
Solve Service2636TCP
HDL Server from CNRI2641TCPUDP
KnowShowGo P2P2700–2800TCP
XBT Bittorrent Tracker2710TCP
XBT Bittorrent Tracker2710UDP
experimental UDP tracker extension
NetIQ Monitor Console2735TCPUDP
corbaloc:iiop URL, per the CORBA2809TCP
3.0.3 specification
IBM WebSphere Application Server2809TCP
(WAS) Bootstrap/rmi default
corbaloc:iiop URL, per the CORBA2809UDP
3.0.3 specification.
Norman Proprietary Event2868TCPUDP
Protocol NPEP
Megaco Text H.2482944UDP
Megaco Binary (ASN.1) H.2482945UDP
gpsd GPS daemon2947TCP
WAP-push Multimedia Messaging2948TCPUDP
Service (MMS)
WAP-pushsecure Multimedia2949TCPUDP
Messaging Service (MMS)
Symantec AntiVirus Corporate2967TCP
Miralix License server3000TCP
Cloud9 Integrated Development3000TCP
Environment server
Distributed Interactive3000UDP
Simulation (DIS), modifiable default
Ruby on Rails development3000TCP
default 44
Miralix Phone Monitor3001TCP
Opsware server (Satellite)3001TCP
Miralix CSTA3002TCP
Miralix GreenBox API3003TCP
Miralix InfoLink3004TCP
Miralix TimeOut3005TCP
Miralix SMS Client Connector3006TCP
Miralix OM Server3007TCP
Miralix Proxy3008TCP
Miralix IVR and Voicemail3017TCP
gds_db (Interbase/Firebird)3050TCPUDP
Galaxy Server (Gateway Ticketing3051TCPUDP
APC PowerChute Network 453052TCPUDP
Xbox LIVE and/or Games for3074TCPUDP
Windows – LIVE
HTTP used by Tatsoft as the3100TCP
default listen port
BlackBerry Enterprise Server3101TCP
communication to cloud
HTTP used by Web caches and the3128TCP
default for the Squid (software)
HTTP used by Tatsoft as the3128TCP
default client connection
FCIP (Fiber Channel over3225TCPUDP
Internet Protocol)
WhiskerControl research control3233TCPUDP
Galaxy Network Service (Gateway3235TCPUDP
Ticketing Systems)
iSCSI target3260TCP
msft-gc, Microsoft Global3268TCPUDP
Catalog (LDAP service which contains data from Active Directory forests)
msft-gc-ssl, Microsoft Global3269TCPUDP
Catalog over SSL (similar to port 3268, LDAP over SSL)
Apple Remote Desktop reporting3283TCP
(officially Net Assistant, referring to an earlier product)
SAP-Router (routing application3299TCP
proxy for SAP R/3)
Debate Gopher backend database3300TCPUDP
odette-ftp, Odette File Transfer3305TCPUDP
Protocol (OFTP)
MySQL database system3306TCPUDP
Verisys – File Integrity3313TCP
Monitoring Software
Network Caller ID server3333TCP
CruiseControl.rb 463333TCP
Microsoft Terminal Server (RDP)3389TCPUDP
officially registered as Windows Based Terminal (WBT) – Link
Novell NDPS Printer Agent3396TCPUDP
RSVP Reservation Protocol3455TCPUDP
Xware xTrm Communication3423TCP
Xware xTrm Communication3424TCP
Protocol over SSL
STUN, a protocol for NAT3478TCPUDP
traversal 47
TURN, a protocol for NAT3478TCPUDP
traversal 48
Slim Devices discovery protocol3483UDP
Slim Devices SlimProto protocol3483TCP
Smartcard Port3516TCPUDP
Microsoft Message Queuing3527UDP
SMTP alternate3535TCP
Teredo tunneling3544UDP
ComCam IO Port3605UDP
Splitlock Server3606TCPUDP
distributed compiler3632TCP
Digital Audio Access Protocol3689TCP
(DAAP)—used by Apple’s iTunes and AirPort Express
Subversion (SVN) version control3690TCPUDP
Web Services Dynamic Discovery3702TCPUDP
(WS-Discovery), used by various components of Windows Vista
Used by many Blizzard3723TCPUDP
games (Diablo II, Warcraft II, Warcraft III, StarCraft)
World of Warcraft Online gaming3724TCP
Club Penguin Disney online game3724TCP
for kids
World of Warcraft Online gaming3724UDP
Ventrilo VoIP program used by3784TCPUDP
Ventrilo VoIP program used by3785UDP
IETF RADIUS Change of3799UDP
Used by HGG programs3800TCP
Diameter base protocol (RFC3868TCPSCTP
Oracle Management Remote Agent3872TCP
Remote Administrator3899TCP
udt_os, IBM UniData UDT OS3900TCP
EMCADS service, a Giritech3945TCPUDP
product used by G/On
OpenTTD game (masterserver and3978TCPUDP
content service)
OpenTTD game3979TCPUDP
Norman distributed scanning3999TCPUDP
Diablo II game4000TCPUDP
Microsoft Ants game4001TCP
PrintBuzzer printer monitoring4007TCP
socket server
protocol information and4018TCPUDP
Minger Email Address4069UDP
Verification Protocol 50
OpenCORE Remote Control Service4089TCPUDP
PxPlus Client server interface4093TCPUDP
Ascom Timeplex BRE (Bridge Relay4096TCPUDP
WatchGuard Authentication4100
Microsoft Remote Web Workplace4125TCP
Teradici PCoIP4172TCPUDP
TinyMUD and various derivatives4201TCP
Aleph One (game)4226TCPUDP
Cisco Audio Session Tunneling4224TCP
Referral Whois (RWhois) Protocol4321TCP
Lincoln Electric’s ArcLink/XT4323UDP
Axence nVision4433-4436TCP
IPSec NAT Traversal (RFC 3947)4500UDP
Microsoft Silverlight4502-4534TCP
connectable ports under non-elevated trust
Armagetron Advanced default4534UDP
server port
Sinatra default server port in4567TCP
development mode (HTTP)
Inter-Asterisk eXchange (IAX2)4569UDP
QualiSystems TestShell Suite4610–4640TCP
OrbitNet Message Service4662UDP
OrbitNet Message Service4662TCP
Default for older versions of4662TCP
eMule 52
Google Desktop Search4664TCP
Default for older versions of4672UDP
eMule 52
eMule optional web interface4711TCP
McAfee Web Gateway 7 – Default4711TCP
McAfee Web Gateway 7 – Default4712TCP
Computer Associates Desktop and4728TCP
Server Management (DMP)/Port Multiplexer
BladeLogic Agent4750TCP
OPC UA TCP Protocol for OPC4840TCPUDP
Unified Architecture from OPC Foundation
OPC UA TCP Protocol over TLS/SSL4843TCPUDP
for OPC Unified Architecture from OPC Foundation
Web Fresh Communication,4847TCPUDP
Quadrion Software & Odorless Entertainment
War of No Return Server Port4886TCP
LysKOM Protocol A4894TCPUDP
Radmin remote administration4899TCPUDP
Munin Resource Monitoring Tool4949TCP
Cylon Controls UC324950TCPUDP
Communications Port
Solar Data Log (JK client app4982TCPUDP
for PV solar inverters )
Home FTP Server web Interface4993TCPUDP
Default Port
UPnP—Windows network5000TCP
device interoperability
VTun—VPN Software5000TCP
FlightGear multiplayer 545000UDP
VTun—VPN Software5000UDP
Slingbox and Slingplayer5001TCP
Iperf (Tool for measuring TCP5001TCP
and UDP bandwidth performance)
Iperf (Tool for measuring TCP5001UDP
and UDP bandwidth performance)
RTP (Real-time Transport5004TCPUDP
Protocol) media data (RFC 3551, RFC 4571)
RTP (Real-time Transport5004DCCP
Protocol) media data (RFC 3551, RFC 4571)
RTP (Real-time Transport5005TCPUDP
Protocol) control protocol (RFC 3551, RFC 4571)
RTP (Real-time Transport5005DCCP
Protocol) control protocol (RFC 3551, RFC 4571)
Sonic Robo Blast 2 : Multiplayer5029TCP
Ethernet tunneling)
Yahoo! Messenger5050TCP
ita-agent Symantec Intruder5051TCP
Alert 56
Session Initiation Protocol5060TCPUDP
Session Initiation Protocol5061TCP
(SIP) over TLS
Binary Floor Control Protocol5070TCP
(BFCP), 57 published as RFC 4582,
is a protocol that allows for an additional video channel (known as the
content channel) alongside the main video channel in a video-conferencing call
that uses SIP. Also used for Session Initiation Protocol (SIP) preferred port
for PUBLISH on SIP Trunk to Cisco Unified Presence Server (CUPS)
Qpur Communication Protocol5082TCPUDP
Qpur File Protocol5083TCPUDP
EPCglobal Low Level Reader5084TCPUDP
Protocol (LLRP)
EPCglobal Low Level Reader5085TCPUDP
Protocol (LLRP) over TLS
SafeNet, Inc Sentinel LM,5093UDP
Sentinel RMS, License Manager, Client-to-Server
SafeNet, Inc Sentinel LM,5099TCPUDP
Sentinel RMS, License Manager, Server-to-Server
IBM Tivoli Framework5104TCP
NetCOOL/Impact 58 HTTP Service
A-Talk Common connection5106TCP
A-Talk Remote server connection5107TCP
VPOP3 Mail Server Webmail5108TCP
VPOP3 Mail Server Status5109TCPUDP
ProRat Server5110TCP
Neverwinter Nights5121TCP
ATMP Ascend Tunnel Management5150TCPUDP
Protocol 59
Malware Cerberus RAT5150TCPUDP
ESRI SDE Instance5151TCP
ESRI SDE Remote Start5151UDP
ConsoleWorks default UI5176TCP
ICQ and AOL Instant Messenger5190TCP
Extensible Messaging and5222TCP
Presence Protocol (XMPP) client connection 60 61
Extensible Messaging and5223TCP
Presence Protocol (XMPP) client connection over SSL
HP Virtual Room Service5228TCP
Android Market5228TCP
Control And Provisioning of5246UDP
Wireless Access Points (CAPWAP) CAPWAP control 62
Control And Provisioning of5247UDP
Wireless Access Points (CAPWAP) CAPWAP data 62
Extensible Messaging and5269TCP
Presence Protocol (XMPP) server connection 60 61
Extensible Messaging and5280TCP
Presence Protocol (XMPP) XEP-0124: Bidirectional-streams Over Synchronous
Undo License Manager5281TCP
Extensible Messaging and5281TCP
Presence Protocol (XMPP) XEP-0124: Bidirectional-streams Over Synchronous
Extensible Messaging and5298TCPUDP
Presence Protocol (XMPP) XEP-0174: Serverless Messaging data communication5310TCPUDP
port data communication5311TCPUDP
port data communication5312TCPUDP
port data communication5313TCPUDP
port data communication5314TCPUDP
port data communication5315TCPUDP
STUN, a protocol for NAT5349TCP
traversal (UDP is reserved) 47
TURN, a protocol for NAT5349TCP
traversal (UDP is reserved) 48
NAT Port Mapping5351TCPUDP
Protocol—client-requested configuration for inbound connections through
network address translators
Multicast DNS (mDNS)5353UDP
LLMNR—Link-Local Multicast5355TCPUDP
Name Resolution, allows hosts to perform name resolution for hosts on the
same local link (only provided by Windows Vista and Server 2008)
Web Services for Devices5357TCPUDP
(WSDAPI) (only provided by Windows Vista, Windows 7 and Server 2008)
WSDAPI Applications to Use a5358TCPUDP
Secure Channel (only provided by Windows Vista, Windows 7 and Server 2008)
mftp, Stratacache OmniCast5402TCPUDP
content delivery system MFTP file sharing protocol
NetSupport Manager5405TCPUDP
IBM Rational Synergy5412TCPUDP
(Telelogic_Synergy) (Continuus CM) Message Router
NetSupport Manager5421TCPUDP
PostgreSQL database system5432TCPUDP
Bouwsoft file/webserver5433TCP
Cisco Unified Video Advantage5445UDP
OSIsoft PI Server Client Access5450TCP
OSIsoft PI Asset Framework5457TCP
Client Access
OSIsoft PI Notifications Client5458TCP
Applix TM1 Admin server5495TCP
Hotline tracker server5498TCP
Hotline tracker server discovery5499UDP
VNC remote desktop5500TCP
protocol—for incoming listening viewer, Hotline control connection
Hotline file transfer connection5501TCP
Setiqueue Proxy server client5517TCP
for SETI@Home project
Hewlett-Packard Data Protector5550TCP
Freeciv versions up to 2.0,5555TCP
Hewlett-Packard Data Protector, McAfee EndPoint Encryption Database Server,
SAP, Default for Microsoft Dynamics CRM 4.0
Default for Tidal Enterprise5591TCP
Scheduler master-Socket used for communication between Agent-to-Master,
though can be changed
pcANYWHEREdata, Symantec5631TCP
pcAnywhere (version 7.52 and later 63 ) 64 data
pcANYWHEREstat, Symantec5632UDP
pcAnywhere (version 7.52 and later) status
IBM Sametime p2p file transfer5656TCP
NRPE (Nagios)5666TCP
NSCA (Nagios)5667TCP
Mikrotik RouterOS Neighbor5678UDP
Discovery Protocol (MNDP)
Operations Manager5723TCP
IDA Discover Port 15741TCPUDP
IDA Discover Port 25742TCPUDP
VNC remote desktop5800TCP
protocol—for use over HTTP
Hewlett-Packard Support5814TCPUDP
Automation (HP OpenView Self-Healing Services)
Adeona client: communications to5852TCP
Virtual Network Computing (VNC)5900TCPUDP
remote desktop protocol (used by Apple Remote Desktop and others)
Default for Tidal Enterprise5912TCP
Scheduler agent-Socket used for communication between Master-to-Agent, though
can be changed
TeamViewer 65 remote desktop protocol5938TCPUDP
CouchDB database server5984TCPUDP
CVSup 66 file update tool5999TCP
X11—used between an X6000TCP
client and server over the network
X11—used between an X6001UDP
client and server over the network
Default for BMC Software6005TCP
Control-M/Server—Socket used for communication between Control-M
processes—though often changed during installation
Default for Camfrog Chat &6005TCP
Cam Client
Brightstor Arcserve Backup6050TCP
Nortel Software6050TCP
Brightstor Arcserve Backup6051TCP
iOperator Protocol Signal Port6072TCP
PDTP—FTP like file server6086TCP
in a P2P network
Vizrt System6100TCP
Ventrilo This is the6100TCP
authentication port that must be allowed outbound for version 3 of Ventrilo
Backup Exec Agent Browser6101TCP
softcm, HP Softbench CM6110TCPUDP
spc, HP Softbench Sub-Process6111TCPUDP
dtspcd—a network daemon6112UDP
that accepts requests from clients to execute commands and launch
applications remotely
dtspcd—a network daemon6112TCP
that accepts requests from clients to execute commands and launch
applications remotely
Blizzard’s gaming6112TCP
service, ArenaNet gaming service, Relic gaming sercive
Club Penguin Disney online game6112TCP
for kids
Club Penguin Disney online game6113TCP
for kids
DameWare Remote Control6129TCP
WinMX (see also 6699)6257UDP
planet M.U.L.E.6260TCPUDP
Sybase Advantage Database Server6262TCP
SFlow, sFlow traffic monitoring6343UDP
gnutella-svc, gnutella6346TCPUDP
(FrostWire, Limewire, Shareaza, etc.)
gnutella-rtr, Gnutella alternate6347TCPUDP
App Discovery and Access6350TCPUDP
PgBouncer – A connection pooler6432TCP
for PostgreSQL
Sun Grid Engine—Qmaster6444TCPUDP
Sun Grid Engine—Execution6445TCPUDP
Netop Business Solutions – NetOp6502TCPUDP
Remote Control
Netop Business Solutions – NetOp6503UDP
Gobby (and other libobby-based6522TCP
Gobby 0.5 (and other6523TCP
libinfinity-based software)
Paradigm Research &6543UDP
Development Jetnet 67 default
SANE (Scanner Access Now6566TCP
Easy)—SANE network scanner daemon
Windows Live FolderShare client6571
Music Playing Daemon (MPD)6600TCP
odette-ftps, Odette File6619TCPUDP
Transfer Protocol (OFTP) over TLS/SSL
McAfee Network Agent6646UDP
Internet Relay Chat (IRC)6660–6664TCP
Internet Relay Chat (IRC)6665–6669TCP
Osorno Automation Protocol6679TCPUDP
IRC SSL (Secure Internet Relay6679TCP
Chat)—often used
IRC SSL (Secure Internet Relay6697TCP
Chat)—often used
WinMX (see also 6257)6699TCP
Default for Tidal Enterprise6702TCP
Scheduler client-Socket used for communication between Client-to-Master,
though can be changed
Polycom server broadcast6771UDP
Datalogger Support Software6789TCP
Campbell Scientific Loggernet Software
BitTorrent part of full range of6881–6887TCPUDP
ports used most often
BitTorrent part of full range of6888TCPUDP
ports used most often
BitTorrent part of full range of6889–6890TCPUDP
ports used most often
BitTorrent part of full range of6891–6900TCPUDP
ports used most often
Windows Live Messenger (File6891–6900TCPUDP
Windows Live Messenger (Voice)6901TCPUDP
BitTorrent part of full range of6901TCPUDP
ports used most often
BitTorrent part of full range of6902–6968TCPUDP
ports used most often
BitTorrent tracker6969TCP
BitTorrent part of full range of6970–6999TCPUDP
ports used most often
Default for Vuze’s built in7000TCP
HTTPS Bittorrent Tracker
Default for BEA WebLogic7001TCP
Server’s HTTP server, though often changed during installation
Default for BEA WebLogic7002TCP
Server’s HTTPS server, though often changed during installation
Default for BMC Software7005TCP
Control-M/Server and Control-M/Agent for Agent-to-Server, though often
changed during installation
Default for BMC Software7006TCP
Control-M/Server and Control-M/Agent for Server-to-Agent, though often
changed during installation
Default for Cisco AON AMC (AON7010TCP
Management Console) 68
Database mirroring endpoints7022TCP
Bryan Wilcutt T2-NMCS Protocol7023UDP
for SatCom Modems
Zimbra LMTP mailbox —local mail delivery7025TCP
Zimbra conversion server7047TCP
Enemy Territory: Quake Wars7133TCP
Zimbra mysql mailbox7306TCP
Zimbra mysql logger7307TCP
Sibelius License Server7312UDP
RTPS (Real Time Publish7400TCPUDP
Subscribe) DDS Discovery
RTPS (Real Time Publish7401TCPUDP
Subscribe) DDS User-Traffic
RTPS (Real Time Publish7402TCPUDP
Subscribe) DDS Meta-Traffic
Rise: The Vieneo Province7473TCPUDP
CPE WAN Management Protocol7547TCPUDP
Technical Report 069
ISL Online 69 communication protocol7615TCP
BrettspielWelt BSW Boardgame7670TCP
Aqumin AlphaVision Remote7676TCP
Command Interface
P2P DC (RedHub)7700UDP
Killing Floor7707UDP
Killing Floor7708UDP
Killing Floor7717UDP
iChat server file transfer proxy7777TCP
Oracle Cluster File System 27777TCP
Windows backdoor program7777TCP
tini.exe default Chat Server Interface7777TCP
Terraria default server7777TCP
Bad Trip MUD7778TCP
Unreal Tournament series default7777-7788UDP
Unreal Tournament series default7777-7788TCP
GFI EventsManager 7 & 87787-7788TCP
Default used by Smartlaunch7831TCP
Internet Cafe Administration 70
PowerSchool Gradebook Server7880TCPUDP
Default for YSFlight server 37915TCP
Fixed port used for Adobe Flash7935TCP
Debug Player to communicate with a debugger (Flash IDE, Flex Builder or fdb).
EMC2 (Legato) Networker or Sun7937-9936TCPUDP
Solcitice Backup
iRDMI (Intel Remote Desktop8000UDP
Management Interface) 72 —sometimes erroneously used instead of port
iRDMI (Intel Remote Desktop8000TCP
Management Interface) 72 —sometimes erroneously used instead of port
Commonly used for internet radio8000TCP
streams such as those using SHOUTcast
Commonly used for internet radio8001TCP
streams such as those using SHOUTcast
Cisco Systems Unified Call8002TCP
Manager Intercluster
HTTP Alternate8008TCP
IBM HTTP Server administration8008TCP
ajp13—Apache JServ8009TCP
Protocol AJP Connector
XMPP File transfers8010TCP
HTTP/TCP Symon Communications8011-8013TCP
Event and Query Engine
HTTP/TCP Symon Communications8014TCP
Event and Query Engine
Perseus SDR Receiver default8014UDP
remote connection port
360Works SuperContainer8020TCP
Killing Floor8075TCP
Default port for most Endless8078TCPUDP
Online-based servers
HTTP alternate8080TCP
(http_alt)—commonly used for Web proxy and caching server, or for
running a Web server as a non-root user
Apache Tomcat8080TCP
FilePhile Master/Relay8080UDP
HTTP alternate, VibeStreamer,8081TCP
e.g. McAfee ePolicy Orchestrator (ePO)
HELM Web Host Automation Windows8086TCP
Control Panel
Kaspersky AV Control Center8086TCP
Hosting Accelerator Control8087TCP
Parallels Plesk Control Panel8087TCP
Kaspersky AV Control Center8087UDP
Asterisk (PBX) Web Configuration8088TCP
utility (GUI Addon)
Splunk Daemon8089TCP
HTTP Alternate8090TCP
(http_alt_alt)—used as an alternative to port 8080
Console Gateway License8100TCP
Check Point Cluster Control8116UDP
Web proxy
Polipo Web proxy8123TCP
Sophos Remote Management System8192TCP
Sophos Remote Management System8193TCP
Sophos Remote Management System8194TCP
VMware Server Management User8222TCP
Interface 73 (insecure Web
interface). 74 See also port 8333
HTTPS listener for Apache8243TCPUDP
Synapse 75
HTTP listener for Apache8280TCPUDP
Synapse 75
Winbox—Default on a8291TCP
MikroTik RouterOS for a Windows application used to administer MikroTik
Teeworlds Server8303UDP
MultiBit, 48331TCP
Bitcoin JSON-RPC server 768332TCP
Bitcoin 778333TCP
VMware Server Management User8333TCP
Interface 73 (secure Web
interface). 74 See also port 8222
cvp, Commvault Unified Data8400TCPUDP
CyBro A-bus, Cybrotech Ltd.8442TCPUDP
SW Soft Plesk Control Panel,8443TCP
Apache Tomcat SSL, Promise WebPAM SSL, McAfee ePolicy Orchestrator (ePO)
ColdFusion Macromedia/Adobe8500TCPUDP
ColdFusion default and Duke Nukem 3D—default
DukesterX —default
Wavestore CCTV protocol 68601TCP
Wavestore Notification protocol8602TCPUDP
Lotus Traveller8642TCP
Ultra Fractal default server8691TCP
port for distributing calculations over network computers
SoftPerfect Bandwidth Manager8701UDP
SoftPerfect Bandwidth Manager8702UDP
Opera Unite server8840TCP
cddbp-alt, CD DataBase (CDDB)8880UDP
protocol (CDDBP) alternate
cddbp-alt, CD DataBase (CDDB)8880TCP
protocol (CDDBP) alternate
WebSphere Application Server8880TCP
SOAP connector default
Win Media Streamer to Server8880TCP
SOAP connector default
Atlasz Informatics Research8881TCP
Ltd 7 Secure Application Server
Atlasz Informatics Research8882TCP
Ltd 8 Secure Application Server
Secure MQ Telemetry Transport8883TCPUDP
(MQTT over SSL)
Freenet HTTP8888TCP
NewsEDGE server8888TCPUDP
Sun Answerbook dwhttpd server8888TCP
(deprecated by
GNUmp3d HTTP music streaming and8888TCP
Web interface
LoLo Catcher HTTP Web interface8888TCP
D2GS Admin Console Telnet8888TCP
administration console for D2GS servers (Diablo 2)
Earthland Relams 2 Server8888TCP
MAMP Server8888TCP
MAMP Server8889TCP
Earthland Relams 2 Server8889TCP
Default for Apache Solr 1.48983TCP
Buffalo LinkSystem Web access9000TCP
SqueezeCenter web server &9000TCP
ETL Service Manager 789001TCPUDP
Microsoft Sharepoint Authoring9001
cisco-xremote router9001
Tor network default9001
DBGp Proxy9001TCP
Pichat Server—Peer to peer9009TCPUDP
chat software
WiT WiT Services9020TCP
WiT WiT Services9025TCP
Tor often used9030TCP
WebSphere Application Server9043TCP
Administration Console secure
WebSphere Application Server9060TCP
Administration Console
glrpc, Groove Collaboration9080UDP
software GLRPC
glrpc, Groove Collaboration9080TCP
software GLRPC
WebSphere Application Server9080TCP
HTTP Transport (port 1) default
Webwasher, Secure Web, McAfee9090TCP
Web Gateway – Default Proxy Port
Openfire Administration Console9090TCP
SqueezeCenter control (CLI)9090TCP
Openfire Administration Console9091TCP
(SSL Secured)
Transmission (BitTorrent client)9091TCP
Web Interface
PDL Data Stream9100TCP
Bacula Director9101TCPUDP
Bacula File Daemon9102TCPUDP
Bacula Storage Daemon9103TCPUDP
Xadmin Control Daemon9105TCPUDP
Astergate Control Daemon9106TCPUDP
Astergate-FAX Control Daemon9107TCP
SSMP Message protocol9110UDP
MXit Instant Messenger9119TCPUDP
Catamount Software – PocketMoney9191TCP
Sony PlayStation RemotePlay9293TCP
IBM Cognos 8 SOAP Business9300TCP
Intelligence and Performance Management
D-Link Shareport Share storage9303UDP
and MFP printers
Sphinx Native API9306TCP
Sphinx SphinxQL9312TCP
git, Git pack transfer service9418TCPUDP
MooseFS distributed file9420TCP
system—master server to chunk servers
MooseFS distributed file9421TCP
system—master server to clients
MooseFS distributed file9422TCP
system—chunk servers to clients
mngsuite, LANDesk Management9535TCPUDP
Suite Remote Control
laes-bf, IP Fabrics Surveillance9536TCPUDP
buffering function
Network Time System Server9561TCPUDP
Spiceworks Desktop, IT Helpdesk9675TCPUDP
Spiceworks Desktop, IT Helpdesk9676TCPUDP
WebDAV Source9800TCPUDP
WebCT e-learning portal9800
Club Penguin Disney online game9875TCP
for kids
Tripwire—File Integrity9898TCP
Monitoring Software
TeamSpeak 3 server default9987UDP
(voice) port (for the conflicting service see the IANA list)
The Palace “The9996TCPUDP
Palace” Virtual Reality Chat software.—5
The Palace “The9998TCPUDP
Palace” Virtual Reality Chat software.—5
TELNET control
Lantronix UDS-10/UDS100 79 RS-485 to Ethernet Converter TELNET9999TCP
Urchin Web Analytics9999
Webmin—Web-based Linux10000
admin tool
Ericsson Account Manager (avim)10000
Lantronix UDS-10/UDS100 80 RS-485 to Ethernet Converter default10001TCP
Octopus Multiplexer, primary10008TCPUDP
port for the CROMP protocol, which provides a platform-independent means for
communication of objects across a network
Cross Fire, a multiplayer online10009TCPUDP
First Person Shooter
Open Object Rexx (ooRexx) rxapi10010TCP
AIX,NeXT, HPUX—rexd daemon10017
Zimbra smtp mta —to amavis from postfix10024TCP
Zimbra smtp mta —back to postfix from amavis10025TCP
NMEA 0183 Navigational Data.10110TCPUDP
Transport of NMEA 0183 sentences over TCP or UDP
NetIQ Endpoint10113TCPUDP
NetIQ Qcheck10114TCPUDP
NetIQ Endpoint10115TCPUDP
NetIQ VoIP Assessor10116TCPUDP
FRISK Software International’s10200TCP
fpscand virus scanning daemon for Unix platforms 81
FRISK Software International’s10200TCP
f-protd virus scanning daemon for Unix platforms 82
FRISK Software International’s10201–1020TCP
f-protd virus scanning daemon for Unix platforms 82
VoiceIP-ACS UMP default device10301TCP
provisioning endpoint
VoiceIP-ACS UMP default device10302TCP
provisioning endpoint (SSL)
Lock-on: Modern Air Combat10308
SWAT 4 Dedicated Server10480
Farming Simulator 2011 Default10823UDP
Jungle Disk (this port is opened10891TCP
by the Jungle Disk Monitor service on the localhost)
metasys ( Johnson Controls11001TCPUDP
Metasys java AC control environment )
Savage:Battle for Newerth Server11235
Blood Quest Online Server11294
OpenPGP HTTP key server11371
IPStor Server management11576
ElevateDB default database12010TCP
port 83
Axence nVision12011TCP
Axence nVision12012TCP
Audition Online Dance Battle,12012TCP
Korea Server—Status/Version Check
Audition Online Dance Battle,12012UDP
Korea Server—Status/Version Check
Audition Online Dance Battle,12013TCPUDP
Korea Server
Linden Lab viewer to sim on12035UDP
Light Weight Access Point12222UDP
Protocol (LWAPP) LWAPP data (RFC 5412)
Light Weight Access Point12223UDP
Protocol (LWAPP) LWAPP control (RFC 5412)
administration tool (often Trojan horse). Also used by NetBuster. Little
Fighter 2 (TCP).
LogMeIn Hamachi (VPN tunnel12975TCP
software; also port 32976)—used to connect to Mediation Server
(; will attempt to use SSL (TCP port 443) if both 12975 &
32976 fail to connect
Takenaka RDI Mirror World on12998–12999UDP
Linden Lab viewer to sim on13000–13050UDP
Cross Fire, a multiplayer online13008TCPUDP
First Person Shooter
Default 84 for BMC Software Control-M/Enterprise13075TCP
Manager Corba communication, though often changed during installation
Ontolux Ontolux 2D13195-13196TCPUDP
ÆtherNet peer-to-peer networking13337-13340TCPUDP
Symantec NetBackup—bprd13720TCPUDP
(formerly VERITAS)
Symantec NetBackup—bpdbm13721TCPUDP
(formerly VERITAS)
Symantec Network13724TCPUDP
Utility—vnetd (formerly VERITAS)
Symantec NetBackup—bpcd13782TCPUDP
(formerly VERITAS)
Symantec VOPIED protocol13783TCPUDP
(formerly VERITAS)
Symantec NetBackup13785TCPUDP
Database—nbdb (formerly VERITAS)
Symantec nomdb (formerly13786TCPUDP
APRS UI-View Amateur Radio14439TCP
85 UI-WebServer
Battlefield 1942 and mods14567UDP
Kaspersky Network Agent15000TCP
hydap, Hypack Hydrographic15000TCP
Software Packages Data Acquisition
hydap, Hypack Hydrographic15000UDP
Software Packages Data Acquisition
Battlefield Vietnam and mods15567UDP
XPilot Contact15345TCPUDP
Mac OS X Server Web (HTTP)16080TCP
service with performance cache 86
Oracle Universal Content16200TCP
Management Content Server
Oracle Universal Content16250TCP
Management Inbound Refinery
Iron Mountain Digital online16384UDP
Battlefield 2 and mods16567UDP
Dropbox LanSync Protocol17500TCP
(db-lsp); used to synchronize file catalogs between Dropbox clients on your
local network.
Dropbox LanSync Discovery17500UDP
(db-lsp-disc); used to synchronize file catalogs between Dropbox clients on
your local network; is transmitted to broadcast addresses.
Super Dancer Online18010TCP
Extreme(SDO-X)—CiB Net Station Malaysia Server
RAD PDF Service18104TCP
DART Reporting server18180TCP
Audition Online Dance Battle,18200TCPUDP
AsiaSoft Thailand Server—Status/Version Check
Audition Online Dance Battle,18201TCPUDP
AsiaSoft Thailand Server
Audition Online Dance Battle,18206TCPUDP
AsiaSoft Thailand Server—FAM Database
Audition Online Dance Battle,18300TCPUDP
AsiaSoft SEA Server—Status/Version Check
Audition Online Dance Battle,18301TCPUDP
AsiaSoft SEA Server
Audition Online Dance Battle,18306TCPUDP
AsiaSoft SEA Server—FAM Database
Bitcoin testnet 8718333TCP
Audition Online Dance Battle,18400TCPUDP
KAIZEN Brazil Server—Status/Version Check
Audition Online Dance Battle,18401TCPUDP
KAIZEN Brazil Server
Audition Online Dance Battle,18505TCPUDP
Nexon Server—Status/Version Check
Audition Online Dance Battle,18506TCPUDP
Nexon Server
Audition Online Dance Battle,19000TCPUDP
G10/alaplaya Server—Status/Version Check
Audition Online Dance Battle,19001TCPUDP
G10/alaplaya Server
Panda Software AdminSecure19226TCP
Communication Agent
K2 – KeyAuditor & KeyServer,19283TCPUDP
Sassafras Software Inc. Software Asset Management tools
Google Talk Voice and Video19294TCP
connections 88
Google Talk Voice and Video19295UDP
connections 88
Google Talk Voice and Video19302UDP
connections 88
KeyShadow for K2 – KeyAuditor19315TCPUDP
& KeyServer, Sassafras Software Inc. Software Asset Management tools
Belkin Network USB Hub19540TCPUDP
Ensim Control Panel19638TCP
Softros LAN Messenger19771TCPUDP
4D database SQL Communication19812TCP
4D database Client Server19813TCP
4D database DB4D Communication19814TCP
Softros LAN Messenger19880TCP
DNP – Secure (Distributed19999
Network Protocol – Secure), a secure version of the protocol used in SCADA
systems between communicating RTU’s and IED’s
DNP (Distributed Network20000
Protocol), a protocol used in SCADA systems between communicating RTU’s and
Usermin, Web-based user tool20000
DART Reporting server20014TCP
Killing Floor20560TCPUDP
Symantec i3 Web GUI server20720TCP
AMLFilter, AMLFilter Inc.21001TCP
amlf-admin default port
AMLFilter, AMLFilter Inc.21011TCP
amlf-engine-01 default http port
AMLFilter, AMLFilter Inc.21012TCP
amlf-engine-01 default https port
AMLFilter, AMLFilter Inc.21021TCP
amlf-engine-02 default http port
AMLFilter, AMLFilter Inc.21022TCP
amlf-engine-02 default https port
FLIR Systems Camera Resource22136TCP
Davis Instruments, WeatherLink22222TCP
Software protection system
Wolfson Microelectronics,22349TCP
WISCEBridge Debug Protocol
Software protection system
Soldat Dedicated Server23073
Skype Default Protocol23399
Duke Nukem 3D#Source code Duke23513
Nukem Ports
NetBeans integrated development24444
Tonido Directory Server for24465TCPUDP
Tonido which is a Personal Web App and P2P platform
BINKP, Fidonet mail transfers24554TCPUDP
over TCP/IP
Synergy: keyboard/mouse sharing24800
StepMania: Online: Dance Dance24842
Revolution Simulator
Teamware Office standard client25000TCP
Teamware Office client notifier25003TCP
Teamware Office message transfer25005TCP
Teamware Office MIME Connector25007TCP
Teamware Office Agent server25010TCP
Minecraft Dedicated Server25565
MySQL Standard MySQL port25565
collectd default port 8925826UDP
Xfire (Firewall Report, UDP_IN)25888UDP
IP Address ( resolves to Use
id Software’s Quake server26000UDP
id Software’s Quake server26000TCP
CCP’s EVE Online Online gaming26000TCP
CCP’s EVE Online Online gaming26900TCP
CCP’s EVE Online Online gaming26901TCP
(through 27006) id Software’s27000UDP
QuakeWorld master server
FlexNet Publisher’s License27000-27009TCP
server (from the range of default ports)
Source engine dedicated server27010
Source engine dedicated server27014
port (rare)
GoldSrc and Source engine27015
dedicated server port
Magicka server port27016
mongoDB server port27017
Sub7 default.27374
(through 27900) id Software’s27500UDP
Kaillera server27888UDP
Nintendo Wi-Fi Connection27900-27901
(through 27910) id Software’s27901UDP
Quake II master server
OpenArena outgoing27950UDP
(through 27969) Activision’s27960UDP
Enemy Territory and id Software’s Quake III Arena, Quake III and Quake Live
and some ioquake3 derived games (OpenArena incoming)
Bitfighter Common/default28000
Bitfighter Server
Starsiege: Tribes Common/default28001
Tribes v.1 Server Used by28395TCP
Smart Sale 5.0
Cube 2 Sauerbraten 9028785UDP
Cube 2 Sauerbraten Port 228786UDP
Killing Floor28852TCPUDP
Nintendo Wi-Fi Connection28910
Call of Duty; Call of Duty:28960UDP
United Offensive; Call of Duty 2; Call of Duty 4: Modern Warfare; Call of
Duty: World at War (PC Version)
Perfect World International Used29000
by the Perfect World International Client
Nintendo Wi-Fi Connection29900-29901
Nintendo Wi-Fi Connection29920
Pokémon Netbattle30000
keyboard/mouse/clipboard sharing software
Lantronix Discovery for30718UDP
Lantronix serial-to-ethernet devices
ZangZing agent30777TCP
Back Orifice—remote31337TCP
administration tool (often Trojan horse)
Communication Service (often Informational)
TetriNET IRC gateway on some31456TCP
TetriNET Used for game31458TCP
x3Lobby Used by x3Lobby, an32123TCP
internet application.
MMTSG-mutualed over MMT32245TCP
(encrypted transmission)
FileNet RPC32769TCP
LogMeIn Hamachi (VPN tunnel32976TCP
software; also port 12975)—used to connect to Mediation Server
(; will attempt to use SSL (TCP port 443) if both 12975 &
32976 fail to connect
Dezta software33982TCPUDP
Linksys PSUS4 print server34443 EDI service34567TCP
Any of the USGN online games,36963UDP
most notably Counter Strike 2D multiplayer (2D clone of popular CounterStrike
computer game)
Axence nVision37659TCP
Digital Video Recorder hardware37777TCP
SafetyNET p Real-time Industrial40000TCPUDP
Ethernet protocol
Murealm Client41823TCPUDP
TheòsMessenger second port for43047TCP
service TheòsMessenger
TheòsMessenger third port for43048TCP
service TheòsMessenger
Jagex, RuneScape, FunOrb, etc.43594–4359TCP
WinRM – Windows Remote47001TCP
Management Service 92
BACnet Building Automation and47808TCPUDP
Control Networks (4780810 = BAC016)
The Internet Assigned Numbers49151TCPUDP
Authority (IANA) port number reserver

Well known ports

Well Known Ports (Numbers 0 to 1023) – These numbers are reserved for services and applications. They are commonly used for applications such as HTTP (web server) POP3/SMTP (e-mail server) and Telnet. By defining these well-known ports for server applications, client applications can be programmed to request a connection to that specific port and its associated service.

TCP Port Service Multiplexer1TCPUDP
CompressNET 2 Management Utility 32TCPUDP
CompressNET 2 Compression Process 43TCPUDP
Remote Job Entry5TCPUDP
Echo Protocol7TCPUDP
Discard Protocol9TCPUDP
Active Users (systat service)11TCPUDP
5 6
Daytime Protocol (RFC 867)13TCPUDP
Previously netstat service15TCPUDP
Quote of the Day17TCPUDP
Message Send Protocol18TCPUDP
Character Generator Protocol19TCPUDP
FTP—data transfer20TCP
FTP—control (command)21TCP
Secure Shell (SSH)—used22TCP
for secure logins, file transfers (scp, sftp) and port forwarding
protocol—unencrypted text communications
Priv-mail : any private mail24TCPUDP
system. citation needed
Simple Mail Transfer Protocol25TCP
(SMTP)—used for e-mail routing between mail servers
NSW User System FE citation27TCPUDP
MSG ICP citation needed29TCPUDP
Display Support Protocol33TCPUDP
citation needed
Remote File (RF)—used to34TCPUDP
transfer files between machines citation needed
Any private printer server35TCPUDP
protocol citation needed
TIME protocol37TCPUDP
Resource Location Protocol39TCPUDP
7 (RLP)—used for
determining the location of higher level services from hosts on a network
ARPA Host Name Server Protocol42TCPUDP
Windows Internet Name Service42TCPUDP
WHOIS protocol43TCP
TACACS Login Host protocol49TCPUDP
citation needed
Remote Mail Checking Protocol50TCPUDP
IMP Logical Address Maintenance51TCPUDP
citation needed
XNS (Xerox Network Systems) Time52TCPUDP
Domain Name System (DNS)53TCPUDP
XNS (Xerox Network Systems)54TCPUDP
ISI Graphics Language (ISI-GL)55TCPUDP
citation needed
XNS (Xerox Network Systems)56TCPUDP
Route Access Protocol (RAP)56TCPUDP
Mail Transfer Protocol (RFC 780)57TCP
XNS (Xerox Network Systems) Mail58TCPUDP
Bootstrap Protocol (BOOTP)67UDP
Server; also used by Dynamic Host Configuration Protocol (DHCP)
Bootstrap Protocol (BOOTP)68UDP
Client; also used by Dynamic Host Configuration Protocol (DHCP)
Trivial File Transfer Protocol69UDP
Gopher protocol70TCP
NETRJS protocol71TCP
NETRJS protocol72TCP
NETRJS protocol73TCP
NETRJS protocol74TCP
Finger protocol79TCP
Hypertext Transfer Protocol80TCPUDP
Torpark—Onion routing81TCP
system citation needed
dnsix (DoD Network Security for90TCPUDP
Information Exchange) Securit Attribute Token Map citation needed
WIP Message protocol99TCP
NIC host name101TCP
ISO-TSAP (Transport Service102TCP
Access Point) Class 0 protocol 10
ACR/NEMA Digital Imaging and104TCPUDP
Communications in Medicine
CCSO Nameserver Protocol (Qi/Ph)105TCPUDP
Remote TELNET Service 11 protocol107TCP
SNA Gateway Access Server 12108TCPUDP
Post Office Protocol v2 (POP2)109TCP
Post Office Protocol v3 (POP3)110TCP
Service/Identification Protocol, 13
used by IRC servers to identify users
Authentication Service 13 (auth)113UDP
Simple File Transfer Protocol115TCP
UUCP Path Service117TCP
SQL (Structured Query Language)118TCPUDP
Network News Transfer Protocol119TCP
(NNTP)—retrieval of newsgroup messages
Network Time Protocol123UDP
(NTP)—used for time synchronization
DCE endpoint resolution135TCPUDP
Microsoft EPMAP (End Point135TCPUDP
Mapper), also known as DCE/RPC Locator service, 14 used to remotely manage services
including DHCP server, DNS server and WINS. Also used by DCOM
NetBIOS NetBIOS Name Service137TCPUDP
NetBIOS NetBIOS Datagram Service138TCPUDP
NetBIOS NetBIOS Session Service139TCPUDP
Internet Message Access Protocol143TCP
(IMAP)—management of email messages
Background File Transfer Program152TCPUDP
(BFTP) 15
SGMP, Simple Gateway Monitoring153TCPUDP
SQL Service156TCPUDP
DMSP, Distributed Mail Service158TCPUDP
Protocol 16
Simple Network Management161UDP
Protocol (SNMP)
Simple Network Management162TCPUDP
Protocol Trap (SNMPTRAP) 17
Print-srv, Network PostScript170TCP
citation needed
z/VSE – Network Job Entry(NJE)) citation needed
X Display Manager Control177TCPUDP
Protocol (XDMCP)
BGP (Border Gateway Protocol)179TCP
Internet Relay Chat (IRC)194TCPUDP
SMUX, SNMP Unix Multiplexer199TCPUDP
AppleTalk Routing Maintenance201TCPUDP
The Quick Mail Transfer Protocol209TCPUDP
Internetwork Packet Exchange213TCPUDP
Message posting protocol (MPP)218TCPUDP
Internet Message Access Protocol220TCPUDP
(IMAP), version 3
2DEV “2SP” Port256TCPUDP
citation needed
ESRO, Efficient Short Remote259TCPUDP
Operations citation needed
BGMP, Border Gateway Multicast264TCPUDP
Novastor Online Backup308TCP
Mac OS X Server Admin311TCP
(officially AppleShare IP Web administration) citation needed
PKIX TSP, Time Stamp Protocol318TCPUDP
Precision time protocol event319UDP
Precision time protocol general320UDP
IMMP, Internet Message Mapping323TCPUDP
Protocol citation needed
MATIP-Type A, Mapping of Airline350TCPUDP
Traffic over Internet Protocol citation needed
MATIP-Type B, Mapping of Airline351TCPUDP
Traffic over Internet Protocol citation needed
ODMR, On-Demand Mail Relay366TCPUDP
citation needed
Rpc2portmap citation needed369TCPUDP
authentication server citation needed
authentication server citation needed
packets to NAI’s servers 18 dead link
ClearCase albd citation371TCPUDP
HP data alarm manager citation383TCPUDP
A Remote Network Server System384TCPUDP
citation needed
AURP, AppleTalk Update-based387TCPUDP
Routing Protocol 19
Lightweight Directory Access389TCPUDP
Protocol (LDAP)
UPS Uninterruptible Power Supply401TCPUDP
citation needed
Altiris, Altiris Deployment402TCP
Client citation needed
Direct Connect Hub411TCP
Direct Connect Client-to-Client412TCP
Service Location Protocol (SLP)427TCPUDP
HTTPS (Hypertext Transfer443TCP
Protocol over SSL/TLS)
SNPP, Simple Network Paging444TCPUDP
Protocol (RFC 1568)
Microsoft-DS Active Directory,445TCP
Windows shares
Microsoft-DS SMB file sharing445TCP
Kerberos Change/Set password464TCPUDP
Cisco protocol citation465TCP
tcpnethaspsrv (Aladdin Knowledge475TCPUDP
Systems Hasp services, TCP/IP version) citation needed
Dantz Retrospect497TCP
Qmatic Qwin communication port500TCP
citation needed
Internet Security Association500UDP
and Key Management Protocol (ISAKMP)
STMF, Simple Transportation501TCP
Management Framework—DOT NTCIP 1101 citation needed
asa-appl-proto, Protocol502TCPUDP
citation needed
Modbus, Protocol502TCPUDP
protocol for dedicated clients for the Citadel groupware system
First Class Protocol citation510TCP
Rexec, Remote Process Execution512TCP
comsat, together with biff512UDP
Who citation needed513UDP
Shell—used to execute514TCP
non-interactive commands on a remote system (Remote Shell, rsh, remsh)
Syslog—used for system514UDP
Line Printer Daemon—print515TCP
Talk citation needed517UDP
NTalk citation needed518UDP
efs, extended file name server520TCP
citation needed
Routing Information Protocol520UDP
NetWare Core Protocol (NCP) is524TCPUDP
used for a variety things such as access to primary NetWare server resources,
Time Synchronization, etc.
Timed, Timeserver citation525UDP
RPC citation needed530TCPUDP
AOL Instant Messenger531TCPUDP
netnews citation needed532TCP
netwall, For Emergency533UDP
Broadcasts citation needed
UUCP (Unix-to-Unix Copy540TCP
commerce (Commerce Applications)542TCPUDP
citation needed
klogin, Kerberos login543TCP
kshell, Kerberos Remote shell544TCP
OSIsoft PI (VMS), OSISoft PI545TCP
Server Client Access
DHCPv6 client546TCPUDP
DHCPv6 server547TCPUDP
Apple Filing Protocol (AFP) over548TCP
new-rwho, new-who citation550UDP
Real Time Streaming Protocol554TCPUDP
Remotefs, RFS, rfs_server556TCP
rmonitor, Remote Monitor560UDP
citation needed
monitor citation needed561UDP
NNTP protocol over TLS/SSL563TCPUDP
e-mail message submission587TCP
20 (SMTP)
FileMaker 6.0 (and later) Web591TCP
Sharing (HTTP Alternate, also see port 80)
HTTP RPC Ep Map, Remote593TCPUDP
procedure call over Hypertext Transfer Protocol, often used by Distributed
Component Object Model services and Microsoft Exchange Server
TUNNEL profile, 21 a protocol for BEEP peers to form an604TCP
application layer tunnel
ASF Remote Management and623UDP
Control Protocol (ASF-RMCP) citation needed
Internet Printing Protocol (IPP)631TCPUDP
Common Unix Printing System631TCPUDP
RLZ DBase citation needed635TCPUDP
Lightweight Directory Access636TCPUDP
Protocol over TLS/SSL (LDAPS)
MSDP, Multicast Source Discovery639TCPUDP
SupportSoft Nexus Remote Command641TCPUDP
(control/listening): A proxy gateway connecting remote control traffic
citation needed
LDP, Label Distribution646TCPUDP
Protocol, a routing protocol used in MPLS networks
DHCP Failover protocol 22647TCP
RRP (Registry Registrar648TCP
Protocol) 23
IEEE-MMS citation needed651TCPUDP
DTCP, Dynamic Tunnel652TCP
Configuration Protocol citation needed
SupportSoft Nexus Remote Command653TCPUDP
(data): A proxy gateway connecting remote control traffic citation
Media Management System (MMS)654TCP
Media Management Protocol (MMP) 24
IBM RMC (Remote monitoring and657TCPUDP
Control) protocol, used by System p5 AIX Integrated Virtualization Manager
(IVM) 25 and Hardware Management
Console to connect managed logical partitions (LPAR) to enable dynamic partition
Mac OS X Server administration660TCP
sun-dr, Remote Dynamic665TCP
Reconfiguration citation needed
Doom, first online first-person666UDP
ACAP (Application Configuration674TCP
Access Protocol)
MS Exchange Routing691TCP
Linux-HA High availability694TCPUDP
Management System over SSL) 26
OLSR (Optimized Link State698UDP
EPP (Extensible Provisioning700TCP
Protocol), a protocol for communication between domain name registries and
registrars (RFC 5734)
LMP (Link Management Protocol701TCP
(Internet)), 27 a protocol that
runs between a pair of nodes and is used to manage traffic engineering (TE)
IRIS 28 29 (Internet Registry Information702TCP
Service) over BEEP (Blocks Extensible Exchange Protocol) 30 (RFC 3983)
Secure Internet Live706TCP
Conferencing (SILC)
Cisco Tag Distribution Protocol711TCP
31 32 33 —being replaced by the MPLS
Label Distribution Protocol 34
Topology Broadcast based on712TCP
Reverse-Path Forwarding routing protocol (TBRPF) (RFC 3684)
Promise RAID Controller citation712UDP
SMQP, Simple Message Queue720TCP
Protocol citation needed
Kerberos (protocol)749TCPUDP
kerberos-iv, Kerberos version IV750UDP
kerberos_master, Kerberos751TCPUDP
passwd_server, Kerberos Password752UDP
(kpasswd) server
Reverse Routing Header (rrh)753TCP
Reverse Routing Header (rrh)753UDP
userreg_server, Kerberos userreg753UDP
tell send citation needed754TCP
krb5_prop, Kerberos v5 slave754TCP
tell send citation needed754UDP
krbupdate kreg , Kerberos registration760TCPUDP
Conserver serial-console782TCP
management server
SpamAssassin spamd daemon783TCP
Microsoft Net.TCP Port Sharing808TCP
Service citation needed
CMP (Certificate Management829TCP
Protocol) citation needed
Adobe Flash 36843TCP
DHCP Failover protocol847TCP
Group Domain Of Interpretation848TCPUDP
(GDOI) protocol citation needed
iSCSI (RFC 3720)860TCP
rsync file synchronisation873TCP
cddbp, CD DataBase (CDDB)888TCP
protocol (CDDBP)—unassigned but widespread use
Samba Web Administration Tool901TCP
VMware Virtual Infrastructure901TCP
Client (UDP from server being managed to management console)
VMware Virtual Infrastructure901UDP
Client (UDP from server being managed to management console)
ideafarm-door citation902TCP
VMware Server Console (TCP from902TCP
management console to server being Managed)
ideafarm-door citation902UDP
VMware Server Console (UDP from902UDP
server being managed to management console)
VMware Remote Console 37903TCP
VMware Server Alternate (if 902904TCP
is in use, i.e. SUSE linux)
Network Console on Acid911TCP
(NCA)—local tty redirection over OpenSSH
Network File System (protocol)944UDP
Domain Name System (DNS) RNDC953TCPUDP
Network File System (protocol)973UDP
over IPv6 Service
SofaWare Technologies Remote981TCP
HTTPS management for firewall devices running embedded Check Point FireWall-1
Microsoft This Secure Hypertext987TCP
Transfer Protocol (HTTPS) port makes Windows SharePoint Services viewable
through Remote Web Workplace citation needed
FTPS Protocol (data): FTP over989TCPUDP
FTPS Protocol (control): FTP990TCPUDP
over TLS/SSL
NAS (Netnews Administration991TCPUDP
System) 38
TELNET protocol over TLS/SSL992TCPUDP
Internet Message Access Protocol993TCP
over SSL (IMAPS)
Post Office Protocol 3 over995TCP
ScimoreDB Database System999TCP
citation needed
Opsware agent (aka cogbot)1002TCP
citation needed
The Internet Assigned Numbers1023TCPUDP
Authority (IANA) port number reserver