Only those ports that are commonly used are listed, refer to the IANA site for the full list.
When investigating TCP traffic, be careful not to confuse the client and server ports. The client port is incremental, typically beginning at 1024 at boot time and wrapping at 4096. If the port you are investigating is in the lower part of this range, it may be a client port. Stateful firewalls identify the server port, but packet sniffers and stateless firewalls do not. For example, a packet sniffer showing a TCP packet with source port 1080 and destination port 1494 might be SOCKS or Citrix-ICA. The only way to know for sure is to examine the initial TCP handshake.
With UDP, client port selection depends on the application and may be incremental, fixed to a nonsensical value, or fixed equal to the server port.
| Port | Description | Status |
|---|---|---|
| 1025/tcp | NFS-or-IIS | Unofficial |
| 1026/tcp | Often utilized by Microsoft DCOM services | Unofficial |
| 1029/tcp | Often utilized by Microsoft DCOM services | Unofficial |
| 1058/tcp | nim AIX Network Installation Manager | Official |
| 1059/tcp | nimreg | Official |
| 1080/tcp | SOCKS proxy | Official |
| 1099/tcp | RMI Registry | Official |
| 1099/udp | RMI Registry | Official |
| 1109/tcp | Kerberos POP | |
| 1140/tcp | AutoNOC | Official |
| 1167/udp | phone, conference calling | |
| 1176/tcp | Perceptive Automation Indigo home control server | Official |
| 1182/tcp,udp | AcceleNet | Official |
| 1194/udp | OpenVPN | Official |
| 1198/tcp,udp | The cajo project Free dynamic transparent distributed computing in Java | Official |
| 1200/udp | Steam Friends Applet | Official |
| 1214/tcp | Kazaa | Official |
| 1223/tcp,udp | TGP: "TrulyGlobal Protocol" aka "The Gur Protocol" | Official |
| 1241/tcp,udp | Nessus Security Scanner | Official |
| 1248/tcp | NSClient/NSClient++/NC_Net (Nagios) | Unofficial |
| 1270/tcp,udp | Microsoft Operations Manager 2005 agent (MOM 2005) | Official |
| 1311/tcp | Dell Open Manage Https Port | Unofficial |
| 1313/tcp | Xbiim (Canvii server) Port | Unofficial |
| 1337/tcp | WASTE Encrypted File Sharing Program | Unofficial |
| 1352/tcp | IBM Lotus Notes/Domino RPC | Official |
| 1387/tcp | Computer Aided Design Software Inc LM (cadsi-lm ) | Official |
| 1387/udp | Computer Aided Design Software Inc LM (cadsi-lm ) | Official |
| 1414/tcp | IBM MQSeries | Official |
| 1431/tcp | RGTP | Official |
| 1433/tcp,udp | Microsoft SQL database system | Official |
| 1434/tcp,udp | Microsoft SQL Monitor | Official |
| 1494/tcp | Citrix Presentation Server ICA Client | Official |
| 1512/tcp,udp | WINS | |
| 1521/tcp | nCube License Manager | Official |
| 1521/tcp | Oracle database default listener, in future releases official port 2483 | Unofficial |
| 1524/tcp,udp | ingreslock, ingres | Official |
| 1526/tcp | Oracle database common alternative for listener | Unofficial |
| 1533/tcp | IBM Sametime IM - Virtual Places Chat | Official |
| 1547/tcp | Laplink | Official |
| 1547/udp | Laplink | Official |
| 1550 | Gadu-Gadu (Direct Client-to-Client) | Unofficial |
| 1581/udp | MIL STD 2045-47001 VMF | Official |
| 1589/udp | Cisco VQP (VLAN Query Protocol) / VMPS | Unofficial |
| 1627 | iSketch | Unofficial |
| 1677/tcp | Novell GroupWise clients in client/server access mode | |
| 1701/udp | l2tp, Layer 2 Tunnelling protocol | |
| 1716/tcp | America's Army MMORPG Default Game Port | Official |
| 1723/tcp | Microsoft PPTP VPN | Official |
| 1723/udp | Microsoft PPTP VPN | Official |
| 1725/udp | Valve Steam Client | Unofficial |
| 1755/tcp | Microsoft Media Services (MMS, ms-streaming) | Official |
| 1755/udp | Microsoft Media Services (MMS, ms-streaming) | Official |
| 1761/tcp,udp | cft-0 | Official |
| 1761/tcp | Novell Zenworks Remote Control utility | Unofficial |
| 1762-1768/tcp,udp | cft-1 to cft-7 | Official |
| 1812/udp | radius, RADIUS authentication protocol | |
| 1813/udp | radacct, RADIUS accounting protocol | |
| 1863/tcp | Windows Live Messenger, MSN | Official |
| 1900/udp | Microsoft SSDP Enables discovery of UPnP devices | Official |
| 1935/tcp | Real Time Messaging Protocol (RTMP) raw protocol | Official |
| 1970/tcp,udp | Danware Data NetOp Remote Control | Official |
| 1971/tcp,udp | Danware Data NetOp School | Official |
| 1972/tcp,udp | InterSystems Caché | Official |
| 1975-77/udp | Cisco TCO (Documentation) | Official |
| 1984/tcp | Big Brother - network monitoring tool | Official |
| 1985/udp | Cisco HSRP | Official |
| 1998/tcp | Cisco X.25 service (XOT) | |
| 2000/udp | Cisco SCCP (Skinny) | Official |
| 2000/tcp | Cisco SCCP (Skinny) | Official |
| 2002/tcp | Cisco Secure Access Control Server (ACS) for Windows | Unofficial |
| 2030 | Oracle Services for Microsoft Transaction Server | Unofficial |
| 2031/tcp | mobrien-chat - Mike O'Brien | Official |
| 2031/udp | mobrien-chat - Mike O'Brien | Official |
| 2049/udp | nfs, NFS Server | Official |
| 2049/udp | shilp | Official |
| 2053/tcp | knetd, Kerberos de-multiplexor | |
| 2056/udp | Civilization 4 multiplayer | Unofficial |
| 2074/tcp | Vertel VMF SA (i.e. App.. SpeakFreely) | Official |
| 2074/udp | Vertel VMF SA (i.e. App.. SpeakFreely) | Official |
| 2082/tcp | Infowave Mobility Server | Official |
| 2082/tcp | CPanel, default port | Unofficial |
| 2083/tcp | Secure Radius Service (radsec) | Official |
| 2083/tcp | CPanel default SSL port | Unofficial |
| 2086/tcp | GNUnet | Official |
| 2086/tcp | WebHost Manager default port | Unofficial |
| 2087/tcp | WebHost Manager default SSL port | Unofficial |
| 2095/tcp | CPanel default webmail port | Unofficial |
| 2096/tcp | CPanel default SSL webmail port | Unofficial |
| 2161/tcp | ?-APC Agent | Official |
| 2181/tcp | EForward-document transport system | Official |
| 2181/udp | EForward-document transport system | Official |
| 2200/tcp | Tuxanci game server | Unofficial |
| 2219/tcp | NetIQ NCAP Protocol | Official |
| 2219/udp | NetIQ NCAP Protocol | Official |
| 2220/tcp | NetIQ End2End | Official |
| 2220/udp | NetIQ End2End | Official |
| 2222/tcp | DirectAdmin's default port | Unofficial |
| 2222/udp | Microsoft Office OS X antipiracy network monitor [1] | Unofficial |
| 2301/tcp | HP System Management Redirect to port 2381 | Unofficial |
| 2302/udp | ArmA multiplayer (default for game) | Unofficial |
| 2302/udp | Halo: Combat Evolved multiplayer | Unofficial |
| 2303/udp | ArmA multiplayer (default for server reporting) (default port for game +1) | Unofficial |
| 2305/udp | ArmA multiplayer (default for VoN) (default port for game +3) | Unofficial |
| 2369/tcp | Default port for BMC Software CONTROL-M/Server - Configuration Agent port number - though often changed during installation | Unofficial |
| 2370/tcp | Default port for BMC Software CONTROL-M/Server - Port utilized to allow the CONTROL-M/Enterprise Manager to connect to the CONTROL-M/Server - though often changed during installation | Unofficial |
| 2381/tcp | HP Insight Manager default port for webserver | Unofficial |
| 2404/tcp | IEC 60870-5-104 | Official |
| 2427/udp | Cisco MGCP | Official |
| 2447/tcp | ovwdb - OpenView Network Node Manager (NNM) daemon | Official |
| 2447/udp | ovwdb - OpenView Network Node Manager (NNM) daemon | Official |
| 2483/tcp,udp | Oracle database listening port for unsecure client connections to the listener, replaces port 1521 | Official |
| 2484/tcp,udp | Oracle database listening port for SSL client connections to the listener | Official |
| 2546/tcp,udp | Vytal Vault - Data Protection Services | Unofficial |
| 2593/tcp,udp | RunUO - Ultima Online server | Unofficial |
| 2598/tcp | new ICA - when Session Reliability is enabled, TCP port 2598 replaces port 1494 | Unofficial |
| 2612/tcp,udp | QPasa from MQSoftware | Official |
| 2710/tcp | XBT Bittorrent Tracker | Unofficial |
| 2710/udp | XBT Bittorrent Tracker experimental UDP tracker extension | Unofficial |
| 2710/tcp | Knuddels.de | Unofficial |
| 2735/tcp | NetIQ Monitor Console | Official |
| 2735/udp | NetIQ Monitor Console | Official |
| 2809/tcp | corbaloc:iiop URL, per the CORBA 3.0.3 specification. Also used by IBM WebSphere Application Server Node Agent | Official |
| 2809/udp | corbaloc:iiop URL, per the CORBA 3.0.3 specification. | |
| 2944/udp | Megaco Text H.248 | Unofficial |
| 2945/udp | Megaco Binary (ASN.1) H.248 | Unofficial |
| 2948/tcp | WAP-push Multimedia Messaging Service (MMS) | Official |
| 2948/udp | WAP-push Multimedia Messaging Service (MMS) | Official |
| 2949/tcp | WAP-pushsecure Multimedia Messaging Service (MMS) | Official |
| 2949/udp | WAP-pushsecure Multimedia Messaging Service (MMS) | Official |
| 2967/tcp | Symantec AntiVirus Corporate Edition | Unofficial |
| 3000/tcp | Miralix License server | Unofficial |
| 3000/udp | Distributed Interactive Simulation (DIS), modifiable default port | Unofficial |
| 3001/tcp | Miralix Phone Monitor | Unofficial |
| 3002/tcp | Miralix CSTA | Unofficial |
| 3003/tcp | Miralix GreenBox API | Unofficial |
| 3004/tcp | Miralix InfoLink | Unofficial |
| 3006/tcp | Miralix SMS Client Connector | Unofficial |
| 3007/tcp | Miralix OM Server | Unofficial |
| 3025/tcp | netpd.org | Unofficial |
| 3050/tcp,udp | gds_db (Interbase/Firebird) | Official |
| 3074/tcp,udp | Xbox Live | Official |
| 3128/tcp | HTTP used by web caches and the default port for the Squid cache | Official |
| 3260/tcp | iSCSI target | Official |
| 3268/tcp | msft-gc, Microsoft Global Catalog (LDAP service which contains data from Active Directory forests) | Official |
| 3269/tcp | msft-gc-ssl, Microsoft Global Catalog over SSL (similar to port 3268, LDAP over SSL version) | Official |
| 3305/tcp,udp | ODETTE-FTP | Official |
| 3306/tcp,udp | MySQL Database system | Official |
| 3333/tcp | Network Caller ID server | Unofficial |
| 3389/tcp | Microsoft Terminal Server (RDP) officially registered as Windows Based Terminal (WBT) | Official |
| 3396/tcp | Novell NDPS Printer Agent | Official |
| 3689/tcp | DAAP Digital Audio Access Protocol used by Apple’s iTunes | Official |
| 3690/tcp | Subversion version control system | Official |
| 3702/tcp,udp | Web Services Dynamic Discovery (WS-Discovery), used by various components of Windows Vista | Official |
| 3724/tcp | World of Warcraft Online gaming MMORPG | Official |
| 3784/tcp,udp | Ventrilo VoIP program used by Ventrilo | Official |
| 3785/udp | Ventrilo VoIP program used by Ventrilo | Official |
| 3868 tcp,udp | Diameter base protocol | Official |
| 3872/tcp | Oracle Management Remote Agent | Unofficial |
| 3899/tcp | Remote Administrator | Unofficial |
| 3900/tcp | Unidata UDT OS udt_os | Official |
| 3945/tcp | Emcads server service port, a Giritech product used by G/On | Official |
| 4000/tcp | Diablo II game | Unofficial |
| 4007/tcp | PrintBuzzer printer monitoring socket server | Unofficial |
| 4089/udp | OpenCORE Remote Control Service | Official |
| 4089/tcp | OpenCORE Remote Control Service | Official |
| 4093/udp | PxPlus Client server interface ProvideX | Official |
| 4093/tcp | PxPlus Client server interface ProvideX | Official |
| 4096/udp | Bridge-Relay Element ASCOM | Official |
| 4100 | WatchGuard Authentication Applet - default port | Unofficial |
| 4111/tcp,udp | Xgrid | Official |
| 4111/tcp | Microsoft Office SharePoint Portal Server - default administration port | Unofficial |
| 4226/tcp,udp | Aleph One (computer game) | Unofficial |
| 4224/tcp | Cisco CDP Cisco discovery Protocol | Unofficial |
| 4569/udp | Inter-Asterisk eXchange | Unofficial |
| 4662/tcp | OrbitNet Message Service | Official |
| 4662/tcp | port often used by eMule | Unofficial |
| 4664/tcp | Google Desktop Search | Unofficial |
| 4672/udp | eMule - port often used | Unofficial |
| 4894/tcp | LysKOM Protocol A | Official |
| 4899/tcp | Radmin remote administration tool (program sometimes used as a Trojan horse) | Official |
| 5000/tcp | commplex-main | Official |
| 5000/tcp | UPnP - Windows network device interoperability | Unofficial |
| 5000/tcp,udp | VTun - VPN Software | Unofficial |
| 5001/tcp,udp | Iperf (Tool for measuring TCP and UDP bandwidth performance) | Unofficial |
| 5001/tcp | Slingbox and Slingplayer | Unofficial |
| 5003/tcp | FileMaker Filemaker Pro | Official |
| 5004/udp | RTP Real-time Transport Protocol | Official |
| 5005/udp | RTP Real-time Transport Protocol | Official |
| 5031/tcp,udp | AVM CAPI-over-TCP (ISDN over Ethernet tunneling) | Unofficial |
| 5050/tcp | Yahoo! Messenger Yahoo! Messenger | Official |
| 5051/tcp | ita-agent Symantec Intruder Alert | Official |
| 5060/tcp | Session Initiation Protocol (SIP) | Official |
| 5060/udp | Session Initiation Protocol (SIP) | Official |
| 5061/tcp | Session Initiation Protocol (SIP) over Transport Layer Security (TLS) | Official |
| 5093/udp | SPSS License Administrator (SPSS) | Official |
| 5104/tcp | IBM NetCOOL / IMPACT HTTP Service | Unofficial |
| 5121/tcp | Neverwinter Nights | Official |
| 5176/tcp | ConsoleWorks default UI interface | Unofficial |
| 5190/tcp | ICQ and AOL Instant Messenger | Official |
| 5222/tcp | XMPP/Jabber - client connection | Official |
| 5223/tcp | XMPP/Jabber - default port for SSL Client Connection | Unofficial |
| 5269/tcp | XMPP/Jabber - server connection | Official |
| 5351/tcp,udp | NAT Port Mapping Protocol - client-requested configuration for inbound connections through network address translators | Official |
| 5353/udp | mDNS - multicastDNS | |
| 5402/tcp,udp | StarBurst AutoCast MFTP | Official |
| 5432/tcp | PostgreSQL database system | Official |
| 5445/udp | Cisco Vidéo VT Advantage | ??? |
| 5495/tcp | Applix TM1 Admin server | Unofficial |
| 5498/tcp | Hotline tracker server connection | Unofficial |
| 5499/udp | Hotline tracker server discovery | Unofficial |
| 5500/tcp | VNC remote desktop protocol - for incoming listening viewer, Hotline control connection | Unofficial |
| 5501/tcp | Hotline file transfer connection | Unofficial |
| 5517/tcp | Setiqueue Proxy server client for SETI@Home project | Unofficial |
| 5555/tcp | Freeciv multiplay port for versions up to 2.0, Hewlett Packard Data Protector, SAP | Unofficial |
| 5556/tcp | Freeciv multiplay port | Official |
| 5631/tcp | Symantec pcAnywhere | Official |
| 5632/udp | Symantec pcAnywhere | Official |
| 5666/tcp | NRPE (Nagios) | Unofficial |
| 5667/tcp | NSCA (Nagios) | Unofficial |
| 5800/tcp | VNC remote desktop protocol - for use over HTTP | Unofficial |
| 5814/tcp,udp | Hewlett-Packard Support Automation (HP OpenView Self-Healing Services) | Official |
| 5900/tcp | VNC remote desktop protocol (used by ARD) | Official |
| 6000/tcp | X11 - used between an X client and server over the network | Official |
| 6001/udp | X11 - used between an X client and server over the network | Official |
| 6005/tcp | Default port for BMC Software CONTROL-M/Server - Socket Port number used for communication between CONTROL-M processes - though often changed during installation | Unofficial |
| 6050/tcp | Brightstor Arcserve Backup | Unofficial |
| 6051/tcp | Brightstor Arcserve Backup | Unofficial |
| 6100/tcp | Vizrt System | Unofficial |
| 6110/tcp | softcm HP SoftBench CM | Official |
| 6110/udp | softcm HP SoftBench CM | Official |
| 6111/tcp | spc HP SoftBench Sub-Process Control | Official |
| 6111/udp | spc HP SoftBench Sub-Process Control | Official |
| 6112/tcp | "dtspcd" - a network daemon that accepts requests from clients to execute commands and launch applications remotely | Official |
| 6112/tcp | Blizzard's Battle.net gaming service, ArenaNet gaming service | Official |
| 6129/tcp | Dameware Remote Control | Unofficial |
| 6257/udp | WinMX (see also 6699) | Unofficial |
| 6346/tcp,udp | gnutella-svc (FrostWire, Limewire, Bearshare, etc.) | Official |
| 6347/tcp,udp | gnutella-rtr | Official |
| 6502/tcp,udp | Danware Data NetOp Remote Control | Unofficial |
| 6522/tcp | Gobby (and other libobby-based software) | Unofficial |
| 6543/udp | Jetnet - default port that the Paradigm Research & Development Jetnet protocol communicates on | Unofficial |
| 6566/tcp | SANE (Scanner Access Now Easy) - SANE network scanner daemon | Unofficial |
| 6619/tcp,udp | ODETTE-FTP over TLS/SSL | Official |
| 6665-6669/tcp | Internet Relay Chat | Official |
| 6679/tcp | IRC SSL (Secure Internet Relay Chat) - port often used | Unofficial |
| 6697/tcp | IRC SSL (Secure Internet Relay Chat) - port often used | Unofficial |
| 6699/tcp | WinMX (see also 6257) | Unofficial |
| 6881-6999/tcp,udp | BitTorrent full range of ports used most often | Unofficial |
| 6891-6900/tcp,udp | Windows Live Messenger (File transfer) | Official |
| 6901/tcp,udp | Windows Live Messenger (Voice) | Official |
| 6969/tcp | acmsoda | Official |
| 6969/tcp | BitTorrent tracker port | Unofficial |
| 7000/tcp | Default port for Azureus's built in HTTPS Bittorrent Tracker | Unofficial |
| 7001/tcp | Default port for BEA WebLogic Server's HTTP server - though often changed during installation | Unofficial |
| 7002/tcp | Default port for BEA WebLogic Server's HTTPS server - though often changed during installation | Unofficial |
| 7005/tcp,udp | Default port for BMC Software CONTROL-M/Server and CONTROL-M/Agent's - Agent to Server port though often changed during installation | Unofficial |
| 7006/tcp,udp | Default port for BMC Software CONTROL-M/Server and CONTROL-M/Agent's - Server to Agent port though often changed during installation | Unofficial |
| 7010/tcp | Default port for Cisco AON AMC (AON Management Console) [2] | Unofficial |
| 7171/tcp | Tibia | |
| 7312/udp | Sibelius License Server port | Unofficial |
| 7670/tcp | BrettspielWelt BSW Boardgame Portal | Unofficial |
| 7777/tcp | Default port used by Windows backdoor program tini.exe | Unofficial |
| 8000/tcp | iRDMI - often mistakenly used instead of port 8080 (The Internet Assigned Numbers Authority (iana.org) officially lists this port for iRDMI protocol) | Official |
| 8000/tcp | Common port used for internet radio streams such as those using SHOUTcast | Unofficial |
| 8002/tcp | Cisco Systems Unified Call Manager Intercluster Port | |
| 8008/tcp | HTTP Alternate | Official |
| 8008/tcp | IBM HTTP Server default administration port | Unofficial |
| 8010/tcp | XMPP/Jabber File transfers | Unofficial |
| 8074/tcp | Gadu-Gadu | Unofficial |
| 8080/tcp | HTTP Alternate (http_alt) - commonly used for web proxy and caching server, or for running a web server as a non-root user | Official |
| 8080/tcp | Jakarta Tomcat | Unofficial |
| 8086/tcp | HELM Web Host Automation Windows Control Panel | Unofficial |
| 8086/tcp | Kaspersky AV Control Center TCP Port | Unofficial |
| 8087/tcp | Hosting Accelerator Control Panel | Unofficial |
| 8087/udp | Kaspersky AV Control Center UDP Port | Unofficial |
| 8090/tcp | Another HTTP Alternate (http_alt_alt) - used as an alternative to port 8080 | Unofficial |
| 8118/tcp | Privoxy web proxy - advertisements-filtering web proxy | Official |
| 8087/tcp | SW Soft Plesk Control Panel | Unofficial |
| 8200/tcp | GoToMyPC | Unofficial |
| 8220/tcp | Bloomberg | Unofficial |
| 8222 | VMware Server Management User Interface (insecure web interface)[2]. See also, port 8333 | Unofficial |
| 8291/tcp | Winbox - Default port on a MikroTik RouterOS for a Windows application used to administer MikroTik RouterOS | Unofficial |
| 8294/tcp | Bloomberg | Unofficial |
| 8333 | VMware Server Management User Interface (secure web interface)[3]. See also, port 8222 | Unofficial |
| 8400 | Commvault Unified Data Management | Official |
| 8443/tcp | SW Soft Plesk Control Panel | Unofficial |
| 8500/tcp | ColdFusion Macromedia/Adobe ColdFusion default Webserver port | Unofficial |
| 8501 | Duke Nukem 3D - Default Online Port | Official |
| 8767 | TeamSpeak - Default UDP Port | Unofficial |
| 8880 | WebSphere Application Server SOAP Connector port | |
| 8881/tcp | Atlasz Informatics Research Ltd Secure Application Server | Unofficial |
| 8882/tcp | Atlasz Informatics Research Ltd Secure Application Server | Unofficial |
| 8888/tcp,udp | NewsEDGE server | Official |
| 8888/tcp | Sun Answerbook dwhttpd server (deprecated by docs.sun.com) | Unofficial |
| 8888/tcp | GNUmp3d HTTP music streaming and web interface port | Unofficial |
| 9000/tcp | Buffalo LinkSystem web access | Unofficial |
| 9000/tcp | DBGp | Unofficial |
| 9000/udp | UDPCast | Unofficial |
| 9001 | cisco-xremote router configuration | Unofficial |
| 9001 | Tor network default port | Unofficial |
| 9001/tcp | DBGp Proxy | Unofficial |
| 9009/tcp,udp | Pichat Server - Peer to peer chat software | Official |
| 9043/tcp | WebSphere Application Server Administration Console secure port | |
| 9060/tcp | WebSphere Application Server Administration Console | |
| 9100/tcp | Jetdirect HP Print Services | Official |
| 9110/udp | SSMP Message protocol | Unofficial |
| 9101 | Bacula Director | Official |
| 9102 | Bacula File Daemon | Official |
| 9103 | Bacula Storage Daemon | Official |
| 9119/TCP,UDP | MXit Instant Messenger | Official |
| 9535/tcp | man, Remote Man Server | |
| 9535 | mngsuite - Management Suite Remote Control | Official |
| 9800/tcp,udp | WebDav Source Port | Official |
| 9800 | WebCT e-learning portal | Unofficial |
| 9999 | Hydranode - edonkey2000 telnet control port | Unofficial |
| 9999 | Urchin Web Analytics | Unofficial |
| 10000 | Webmin - web based Linux admin tool | Unofficial |
| 10000 | BackupExec | Unofficial |
| 10008 | Octopus Multiplexer - CROMP protocol primary port, hoople.org | Official |
| 10017 | AIX,NeXT, HPUX - rexd daemon control port | Unofficial |
| 10050/udp | Zabbix-Server | |
| 10051/udp | Zabbix-Agent | |
| 10113/tcp | NetIQ Endpoint | Official |
| 10113/udp | NetIQ Endpoint | Official |
| 10114/tcp | NetIQ Qcheck | Official |
| 10114/udp | NetIQ Qcheck | Official |
| 10115/tcp | NetIQ Endpoint | Official |
| 10115/udp | NetIQ Endpoint | Official |
| 10116/tcp | NetIQ VoIP Assessor | Official |
| 10116/udp | NetIQ VoIP Assessor | Official |
| 10480 | SWAT 4 Dedicated Server | Unofficial |
| 11235 | Savage:Battle for Newerth Server Hosting | Unofficial |
| 11294 | Blood Quest Online Server | Unofficial |
| 11371 | OpenPGP HTTP Keyserver | Official |
| 11576 | IPStor Server management communication | Unofficial |
| 12345 | NetBus - remote administration tool (often Trojan horse). Also used by NetBuster. Little Fighter 2 (TCP). | Unofficial |
| 12975/tcp | LogMeIn Hamachi (VPN tunnel software;also port 32976) | |
| 13720/tcp | Symantec NetBackup - bprd (formerly VERITAS) | |
| 13721/tcp | Symantec NetBackup - bpdbm (formerly VERITAS) | |
| 13724/tcp | Symantec Network Utility - vnet (formerly VERITAS) | |
| 13782/tcp | Symantec NetBackup - bpcd (formerly VERITAS) | |
| 13783/tcp | Symantec VOPIED protocol (formerly VERITAS) | |
| 14567/udp | Battlefield 1942 and mods | Unofficial |
| 15000/tcp | psyBNC | Unofficial |
| 15000/tcp | Wesnoth | |
| 15567/udp | Battlefield Vietnam and mods | Unofficial |
| 15345/udp | XPilot | Official |
| 16000/tcp | shroudBNC | Unofficial |
| 16080/tcp | Mac OS X Server performance cache for HTTP[4] | Unofficial |
| 16384/udp | Iron Mountain Digital - online backup | Unofficial |
| 16567/udp | Battlefield 2 and mods | Unofficial |
| 19226/tcp | Panda Software AdminSecure Communication Agent | Unofficial |
| 19638/tcp | Ensim Control Panel | Unofficial |
| 19813/tcp | 4D database Client Server Communication | Unofficial |
| 20000 | Usermin - web based user tool | Official |
| 20720/tcp | Symantec i3 Web GUI server | Unofficial |
| 22347/tcp,udp | WibuKey - default port for WibuKey Network Server of WIBU-SYSTEMS AG | Official |
| 22350/tcp,udp | CodeMeter - default port for CodeMeter Server of WIBU-SYSTEMS AG | Official |
| 24554/tcp,udp | binkp - Fidonet mail transfers over TCP/IP | Official |
| 24800 | Synergy: keyboard/mouse sharing software | Unofficial |
| 24842 | StepMania: Online: Dance Dance Revolution Simulator | Unofficial |
| 25999/tcp | Xfire | Unofficial |
| 26000/tcp,udp | id Software's Quake server, | Official |
| 26000/tcp | CCP's EVE Online Online gaming MMORPG, | Unofficial |
| 27000/udp | (through 27006) id Software's QuakeWorld master server | Unofficial |
| 27010 | Half-Life and its mods, such as Counter-Strike | Unofficial |
| 27015 | Half-Life and its mods, such as Counter-Strike | Unofficial |
| 27374 | Sub7's default port. Most script kiddies do not change the default port. | Unofficial |
| 27500/udp | (through 27900) id Software's QuakeWorld | Unofficial |
| 27888/udp | Kaillera server | Unofficial |
| 27900 | (through 27901) Nintendo Wi-Fi Connection | Unofficial |
| 27901/udp | (through 27910) id Software's Quake II master server | Unofficial |
| 27960/udp | (through 27969) Activision's Enemy Territory and id Software's Quake III Arena and Quake III and some ioquake3 derived games | Unofficial |
| 28910 | Nintendo Wi-Fi Connection | Unofficial |
| 28960 | Call of Duty 2 Common Call of Duty 2 port - (PC Version) | Unofficial |
| 29900 | (through 29901) Nintendo Wi-Fi Connection | Unofficial |
| 29920 | Nintendo Wi-Fi Connection | Unofficial |
| 30000 | Pokemon Netbattle | Unofficial |
| 30564/tcp | Multiplicity: keyboard/mouse/clipboard sharing software | Unofficial |
| 31337/tcp | Back Orifice - remote administration tool (often Trojan horse) | Unofficial |
| 31337/tcp | xc0r3 - xc0r3 security antivir port | Unofficial |
| 31415 | ThoughtSignal - Server Communication Service (often Informational) | Unofficial |
| 31456-31458/tcp | TetriNET ports (in order: IRC, game, and spectating) | Unofficial |
| 32245/tcp | MMTSG-mutualed over MMT (encrypted transmission) | Unofficial |
| 33434 | traceroute | Official |
| 37777/tcp | Digital Video Recorder hardware | Unofficial |
| 36963 | Counter Strike 2D multiplayer port (2D clone of popular CounterStrike computer game) | Unofficial |
| 40000 | SafetyNET p | Official |
| 43594-43595/tcp | RuneScape | Unofficial |
| 47808 | BACnet Building Automation and Control Networks | Official |
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