| Port | TCP | UDP | Description | Status |
|---|
| 1024 | TCP | UDP | Reserved[1] | Official |
| 1025 | TCP | | NFS or IIS or Teradata | Unofficial |
| 1026 | TCP | | Often used by Microsoft DCOM services | Unofficial |
| 1029 | TCP | | Often used by Microsoft DCOM services | Unofficial |
| 1058 | TCP | UDP | nim, IBM AIX Network Installation Manager (NIM) | Official |
| 1059 | TCP | UDP | nimreg, IBM AIX Network Installation Manager (NIM) | Official |
| 1080 | TCP | | SOCKS proxy | Official |
| 1085 | TCP | UDP | WebObjects | Official |
| 1098 | TCP | UDP | rmiactivation, RMI Activation | Official |
| 1099 | TCP | UDP | rmiregistry, RMI Registry | Official |
| 1109 | | UDP | Reserved[1] | Official |
| 1109 | TCP | | Reserved[1] | Official |
| 1109 | TCP | | Kerberos Post Office Protocol (KPOP) | Unofficial |
| 1110 | | UDP | EasyBits School network discovery protocol (for Intel's CMPC platform) | Unofficial |
| 1140 | TCP | UDP | AutoNOC protocol | Official |
| 1167 | | UDP | phone, conference calling | Unofficial |
| 1169 | TCP | UDP | Tripwire | Official |
| 1176 | TCP | | Perceptive Automation Indigo Home automation server | Official |
| 1182 | TCP | UDP | AcceleNet Intelligent Transfer Protocol | Official |
| 1194 | TCP | UDP | OpenVPN | Official |
| 1198 | TCP | UDP | The cajo project Free dynamic transparent distributed computing in Java | Official |
| 1200 | TCP | | scol, protocol used by SCOL 3D virtual worlds server to answer world name resolution client request[35] | Official |
| 1200 | | UDP | scol, protocol used by SCOL 3D virtual worlds server to answer world name resolution client request | Official |
| 1200 | | UDP | Steam Friends Applet | Unofficial |
| 1214 | TCP | | Kazaa | Official |
| 1217 | TCP | | Uvora Online | Unofficial |
| 1220 | TCP | | QuickTime Streaming Server administration | Official |
| 1223 | TCP | UDP | TGP, TrulyGlobal Protocol, also known as "The Gur Protocol" (named for Gur Kimchi of TrulyGlobal) | Official |
| 1234 | | UDP | VLC media player Default port for UDP/RTP stream | Unofficial |
| 1236 | TCP | | Symantec BindView Control UNIX Default port for TCP management server connections | Unofficial |
| 1241 | TCP | UDP | Nessus Security Scanner | Official |
| 1270 | TCP | UDP | Microsoft System Center Operations Manager (SCOM) (formerly Microsoft Operations Manager (MOM)) agent | Official |
| 1293 | TCP | UDP | IPSec (Internet Protocol Security) | Official |
| 1301 | TCP | | Palmer Performance OBDNet | Unofficial |
| 1309 | TCP | | Altera Quartus jtagd | Unofficial |
| 1311 | TCP | | Dell OpenManage HTTPS | Official |
| 1313 | TCP | | Xbiim (Canvii server) | Unofficial |
| 1319 | TCP | | AMX ICSP | Official |
| 1319 | UDP | | AMX ICSP | Official |
| 1337 | | UDP | Men and Mice DNS | Official |
| 1337 | TCP | | Men and Mice DNS | Official |
| 1337 | TCP | | PowerFolder P2P Encrypted File Synchronization Program | Unofficial |
| 1337 | TCP | | WASTE Encrypted File Sharing Program | Unofficial |
| 1337 | TCP | | Niax's Minecraft Server | Unofficial |
| 1352 | TCP | | IBM Lotus Notes/Domino[36] (RPC) protocol | Official |
| 1387 | TCP | UDP | cadsi-lm, LMS International (formerly Computer Aided Design Software, Inc. (CADSI)) LM | Official |
| 1414 | TCP | | IBM WebSphere MQ (formerly known as MQSeries) | Official |
| 1417 | TCP | UDP | Timbuktu Service 1 Port | Official |
| 1418 | TCP | UDP | Timbuktu Service 2 Port | Official |
| 1419 | TCP | UDP | Timbuktu Service 3 Port | Official |
| 1420 | TCP | UDP | Timbuktu Service 4 Port | Official |
| 1431 | TCP | | Reverse Gossip Transport Protocol (RGTP), used to access a General-purpose Reverse-Ordered Gossip Gathering System (GROGGS) bulletin board, such as that implemented on the Cambridge University's Phoenix system | Official |
| 1433 | TCP | | MSSQL (Microsoft SQL Server database management system) Server | Official |
| 1434 | TCP | UDP | MSSQL (Microsoft SQL Server database management system) Monitor | Official |
| 1470 | TCP | | Solarwinds Kiwi Log Server | Official |
| 1494 | TCP | | Citrix XenApp Independent Computing Architecture (ICA) thin client protocol | Official |
| 1500 | TCP | | NetGuard GuardianPro firewall (NT4-based) Remote Management | Unofficial |
| 1501 | | UDP | NetGuard GuardianPro firewall (NT4-based) Authentication Client | Unofficial |
| 1503 | TCP | UDP | Windows Live Messenger (Whiteboard and Application Sharing) | Unofficial |
| 1512 | TCP | UDP | Microsoft Windows Internet Name Service (WINS) | Official |
| 1513 | TCP | UDP | Garena Garena Gaming Client | Official |
| 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 Microsoft SQL Server | Official |
| 1547 | TCP | 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 |
| 1645 | TCP | UDP | radius auth, RADIUS authentication protocol (default for Cisco and Juniper Networks RADIUS servers) | Unofficial |
| 1646 | TCP | UDP | radius acct, RADIUS authentication protocol (default for Cisco and Juniper Networks RADIUS servers) | Unofficial |
| 1666 | TCP | | Perforce | Unofficial |
| 1677 | TCP | UDP | Novell GroupWise clients in client/server access mode | Official |
| 1701 | | UDP | Layer 2 Forwarding Protocol (L2F) & Layer 2 Tunneling Protocol (L2TP) | Official |
| 1707 | | TCP | Romtoc Packet Protocol (L2F) & Layer 2 Tunneling Protocol (L2TP) | Unofficial |
| 1716 | TCP | | America's Army Massively multiplayer online game (MMO) | Unofficial |
| 1719 | | UDP | H.323 Registration and alternate communication | Official |
| 1720 | TCP | | H.323 Call signalling | Official |
| 1723 | TCP | UDP | Microsoft Point-to-Point Tunneling Protocol (PPTP) | Official |
| 1725 | | UDP | Valve Steam Client | Unofficial |
| 1755 | TCP | UDP | Microsoft Media Services (MMS, ms-streaming) | Official |
| 1761 | | UDP | cft-0 | Official |
| 1761 | TCP | | cft-0 | Official |
| 1761 | TCP | | Novell Zenworks Remote Control utility | Unofficial |
| 1762–1768 | TCP | UDP | cft-1 to cft-7 | Official |
| 1801 | TCP | UDP | Microsoft Message Queuing | Official |
| 1812 | TCP | UDP | radius, RADIUS authentication protocol | Official |
| 1813 | TCP | UDP | radacct, RADIUS accounting protocol | Official |
| 1863 | TCP | | MSNP (Microsoft Notification Protocol), used by the .NET Messenger Service and a number of Instant Messaging clients | Official |
| 1883 | TCP | UDP | MQ Telemetry Transport (MQTT), formerly known as MQIsdp (MQSeries SCADA protocol) | Official |
| 1886 | TCP | | Leonardo over IP Pro2col Ltd | Unofficial |
| 1900 | | UDP | Microsoft SSDP Enables discovery of UPnP devices | Official |
| 1920 | TCP | | IBM Tivoli Monitoring Console (https) | Unofficial |
| 1935 | TCP | | Adobe Systems Macromedia Flash Real Time Messaging Protocol (RTMP) "plain" protocol | Official |
| 1947 | TCP | UDP | SentinelSRM (hasplm), Aladdin HASP License Manager | Official |
| 1967 | | UDP | Cisco IOS IP Service Level Agreements (IP SLAs) Control Protocol | Unofficial |
| 1970 | TCP | UDP | Netop Business Solutions Netop Remote Control | Official |
| 1971 | TCP | UDP | Netop Business Solutions Netop School | Official |
| 1972 | TCP | UDP | InterSystems Caché | Official |
| 1975–1977 | | UDP | Cisco TCO (Documentation) | Official |
| 1984 | TCP | | Big Brother System and Network Monitor | Official |
| 1985 | | UDP | Cisco HSRP | Official |
| 1994 | TCP | UDP | Cisco STUN-SDLC (Serial Tunneling—Synchronous Data Link Control) protocol | Official |
| 1997 | TCP | | Chizmo Networks Transfer Tool | Unofficial |
| 1998 | TCP | UDP | Cisco X.25 over TCP (XOT) service | Official |
| 2000 | TCP | UDP | Cisco SCCP (Skinny) | Official |
| 2001 | | UDP | CAPTAN Test Stand System | Unofficial |
| 2002 | TCP | | Secure Access Control Server (ACS) for Windows | Unofficial |
| 2030 | | | Oracle Services for Microsoft Transaction Server | Unofficial |
| 2031 | TCP | UDP | mobrien-chat(http://chat.mobrien.com:2031) | Official |
| 2041 | TCP | | Mail.Ru Agent communication protocol | Unofficial |
| 2049 | | UDP | Network File System | Official |
| 2049 | | UDP | shilp | Official |
| 2053 | | UDP | lot105-ds-upd Lot105 DSuper Updates | Official |
| 2053 | TCP | | lot105-ds-upd Lot105 DSuper Updates | Official |
| 2053 | TCP | | knetd Kerberos de-multiplexor | Unofficial |
| 2056 | | UDP | Civilization 4 multiplayer | Unofficial |
| 2073 | TCP | UDP | DataReel Database | Official |
| 2074 | TCP | UDP | Vertel VMF SA (i.e. App.. SpeakFreely) | Official |
| 2082 | TCP | | Infowave Mobility Server | Official |
| 2082 | TCP | | CPanel default | Unofficial |
| 2083 | TCP | | Secure Radius Service (radsec) | Official |
| 2083 | TCP | | CPanel default SSL | Unofficial |
| 2086 | TCP | | GNUnet | Official |
| 2086 | TCP | | WebHost Manager default | Unofficial |
| 2087 | TCP | | WebHost Manager default SSL | Unofficial |
| 2095 | TCP | | CPanel default Web mail | Unofficial |
| 2096 | TCP | | CPanel default SSL Web mail | Unofficial |
| 2102 | TCP | UDP | zephyr-srv Project Athena Zephyr Notification Service server | Official |
| 2103 | TCP | UDP | zephyr-clt Project Athena Zephyr Notification Service serv-hm connection | Official |
| 2104 | TCP | UDP | zephyr-hm Project Athena Zephyr Notification Service hostmanager | Official |
| 2105 | TCP | UDP | IBM MiniPay | Official |
| 2105 | TCP | UDP | eklogin Kerberos encrypted remote login (rlogin) | Unofficial |
| 2105 | TCP | UDP | zephyr-hm-srv Project Athena Zephyr Notification Service hm-serv connection (should use port 2102) | Unofficial |
| 2144 | TCP | | Iron Mountain LiveVault Agent | UnOfficial |
| 2145 | TCP | | Iron Mountain LiveVault Agent | UnOfficial |
| 2156 | | UDP | Talari Reliable Protocol | Official |
| 2161 | TCP | | APC Agent | Official |
| 2181 | TCP | UDP | EForward-document transport system | Official |
| 2190 | | UDP | TiVoConnect Beacon | Unofficial |
| 2200 | | UDP | Tuxanci game server[37] | Unofficial |
| 2210 | | UDP | NOAAPORT Broadcast Network | Official |
| 2210 | TCP | | NOAAPORT Broadcast Network | Official |
| 2210 | TCP | | MikroTik Remote management for "The Dude" | Unofficial |
| 2211 | | UDP | EMWIN | Official |
| 2211 | TCP | | EMWIN | Official |
| 2211 | TCP | | MikroTik Secure management for "The Dude" | Unofficial |
| 2212 | | UDP | LeeCO POS Server Service | Official |
| 2212 | TCP | | LeeCO POS Server Service | Official |
| 2212 | TCP | | Port-A-Pour Remote WinBatch | Unofficial |
| 2219 | TCP | UDP | NetIQ NCAP Protocol | Official |
| 2220 | TCP | UDP | NetIQ End2End | Official |
| 2221 | TCP | | ESET Anti-virus updates | Unofficial |
| 2222 | TCP | | DirectAdmin default & ESET Remote Administration | Unofficial |
| 2223 | | UDP | Microsoft Office OS X antipiracy network monitor | Unofficial |
| 2261 | TCP | UDP | CoMotion Master | Official |
| 2262 | TCP | UDP | CoMotion Backup | Official |
| 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 for BMC Software Control-M/Server—Configuration Agent, though often changed during installation | Official |
| 2370 | TCP | | Default for BMC Software Control-M/Server—to allow the Control-M/Enterprise Manager to connect to the Control-M/Server, though often changed during installation | Official |
| 2381 | TCP | | HP Insight Manager default for Web server | Unofficial |
| 2401 | TCP | | CVS version control system | Unofficial |
| 2404 | TCP | | IEC 60870-5 -104, used to send electric power telecontrol messages between two systems via directly connected data circuits | Official |
| 2420 | | UDP | Westell Remote Access | Official |
| 2427 | | UDP | Cisco MGCP | Official |
| 2447 | TCP | UDP | ovwdb—OpenView Network Node Manager (NNM) daemon | Official |
| 2483 | TCP | UDP | Oracle database listening for unsecure client connections to the listener, replaces port 1521 | Official |
| 2484 | TCP | UDP | Oracle database listening for SSL client connections to the listener | Official |
| 2500 | TCP | | THEÒSMESSENGER listening for TheòsMessenger client connections | Official |
| 2501 | TCP | | TheosNet-Admin listening for TheòsMessenger client connections | Official |
| 2518 | TCP | UDP | Willy | Official |
| 2525 | TCP | | SMTP alternate | Unofficial |
| 2546 | TCP | UDP | EVault—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 |
| 2599 | TCP | | SonicWALL Antispam traffic between Remote Analyzer (RA) and Control Center (CC) | Unofficial |
| 2610 | TCP | | Dark Ages | Unofficial |
| 2612 | TCP | UDP | QPasa from MQSoftware | Official |
| 2638 | TCP | | Sybase database listener | Unofficial |
| 2700–2800 | TCP | | KnowShowGo P2P | Official |
| 2710 | TCP | | XBT Bittorrent Tracker | Unofficial |
| 2710 | | UDP | XBT Bittorrent Tracker experimental UDP tracker extension | Unofficial |
| 2710 | TCP | | Knuddels.de | Unofficial |
| 2713 | TCP | UDP | Raven Trinity Broker Service | Official |
| 2714 | TCP | UDP | Raven Trinity Data Mover | Official |
| 2735 | TCP | UDP | NetIQ Monitor Console | Official |
| 2809 | TCP | | corbaloc:iiop URL, per the CORBA 3.0.3 specification | Official |
| 2809 | TCP | | IBM WebSphere Application Server (WAS) Bootstrap/rmi default | Unofficial |
| 2809 | | UDP | corbaloc:iiop URL, per the CORBA 3.0.3 specification. | Official |
| 2868 | TCP | UDP | Norman Proprietary Event Protocol NPEP | Official |
| 2944 | | UDP | Megaco Text H.248 | Unofficial |
| 2945 | | UDP | Megaco Binary (ASN.1) H.248 | Unofficial |
| 2947 | TCP | | gpsd GPS daemon | Official |
| 2948 | TCP | UDP | WAP-push Multimedia Messaging Service (MMS) | Official |
| 2949 | TCP | 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 | Unofficial |
| 3001 | TCP | | Miralix Phone Monitor | Unofficial |
| 3001 | TCP | | Opsware server (Satellite) | Unofficial |
| 3002 | TCP | | Miralix CSTA | Unofficial |
| 3003 | TCP | | Miralix GreenBox API | Unofficial |
| 3004 | TCP | | Miralix InfoLink | Unofficial |
| 3005 | TCP | | Miralix TimeOut | Unofficial |
| 3006 | TCP | | Miralix SMS Client Connector | Unofficial |
| 3007 | TCP | | Miralix OM Server | Unofficial |
| 3008 | TCP | | Miralix Proxy | Unofficial |
| 3017 | TCP | | Miralix IVR and Voicemail | Unofficial |
| 3025 | TCP | | netpd.org | Unofficial |
| 3030 | TCP | UDP | NetPanzer | Unofficial |
| 3050 | TCP | UDP | gds_db (Interbase/Firebird) | Official |
| 3051 | TCP | UDP | Galaxy Server (Gateway Ticketing Systems) | Official |
| 3074 | TCP | UDP | Xbox LIVE and/or Games for Windows - LIVE | Official |
| 3100 | TCP | | HTTP used by Tatsoft as the default listen port | Unofficial |
| 3101 | TCP | | BlackBerry Enterprise Server communication to cloud | Unofficial |
| 3128 | TCP | | HTTP used by Web caches and the default for the Squid (software) | Unofficial |
| 3128 | TCP | | HTTP used by Tatsoft as the default client connection | Unofficial |
| 3225 | TCP | UDP | FCIP (Fiber Channel over Internet Protocol) | Official |
| 3233 | TCP | UDP | WhiskerControl research control protocol | Official |
| 3235 | TCP | UDP | Galaxy Network Service (Gateway Ticketing Systems) | Official |
| 3260 | TCP | | iSCSI target | Official |
| 3268 | TCP | UDP | msft-gc, Microsoft Global Catalog (LDAP service which contains data from Active Directory forests) | Official |
| 3269 | TCP | UDP | msft-gc-ssl, Microsoft Global Catalog over SSL (similar to port 3268, LDAP over SSL) | Official |
| 3283 | TCP | | Apple Remote Desktop reporting (officially Net Assistant, referring to an earlier product) | Official |
| 3299 | TCP | | SAP-Router (routing application proxy for SAP R/3) | Unofficial |
| 3300 | TCP | UDP | Debate Gopher backend database system | Unofficial |
| 3305 | TCP | UDP | odette-ftp, Odette File Transfer Protocol (OFTP) | Official |
| 3306 | TCP | UDP | MySQL database system | Official |
| 3313 | TCP | | Verisys - File Integrity Monitoring Software | Unofficial |
| 3333 | TCP | | Network Caller ID server | Unofficial |
| 3386 | TCP | UDP | GTP' 3GPP GSM/UMTS CDR logging protocol | Official |
| 3389 | TCP | UDP | Microsoft Terminal Server (RDP) officially registered as Windows Based Terminal (WBT) - Link | Official |
| 3396 | TCP | UDP | Novell NDPS Printer Agent | Official |
| 3412 | TCP | UDP | xmlBlaster | Official |
| 3455 | TCP | UDP | [RSVP] Reservation Protocol | Official |
| 3423 | TCP | | Xware xTrm Communication Protocol | Official |
| 3424 | TCP | | Xware xTrm Communication Protocol over SSL | Official |
| 3478 | TCP | UDP | STUN, a protocol for NAT traversal | Official |
| 3483 | | UDP | Slim Devices discovery protocol | Official |
| 3483 | TCP | | Slim Devices SlimProto protocol | Official |
| 3516 | TCP | UDP | Smartcard Port | Official |
| 3527 | | UDP | Microsoft Message Queuing | Official |
| 3532 | TCP | UDP | Raven Remote Management Control | Official |
| 3533 | TCP | UDP | Raven Remote Management Data | Official |
| 3535 | TCP | | SMTP alternate | Unofficial |
| 3537 | TCP | UDP | ni-visa-remote | Unofficial |
| 3544 | | UDP | Teredo tunneling | Official |
| 3605 | | UDP | ComCam IO Port | Official |
| 3606 | TCP | UDP | Splitlock Server | Official |
| 3632 | TCP | | distributed compiler | Official |
| 3689 | TCP | | Digital Audio Access Protocol (DAAP)—used by Apple’s iTunes and AirPort Express | Official |
| 3690 | TCP | UDP | Subversion version control system | Official |
| 3702 | TCP | UDP | Web Services Dynamic Discovery (WS-Discovery), used by various components of Windows Vista | Official |
| 3723 | TCP | UDP | Used by many Battle.net Blizzard games (Diablo II, Warcraft II, Warcraft III, StarCraft) | Unofficial |
| 3724 | | UDP | World of Warcraft Online gaming MMORPG | Unofficial |
| 3724 | TCP | | World of Warcraft Online gaming MMORPG | Unofficial |
| 3724 | TCP | | Club Penguin Disney online game for kids | Unofficial |
| 3784 | TCP | UDP | Ventrilo VoIP program used by Ventrilo | Unofficial |
| 3785 | | UDP | Ventrilo VoIP program used by Ventrilo | Unofficial |
| 3800 | TCP | | Used by HGG programs | Unofficial |
| 3880 | TCP | UDP | IGRS | Official |
| 3868 | TCP | SCTP | Diameter base protocol (RFC 3588) | Official |
| 3872 | TCP | | Oracle Management Remote Agent | Unofficial |
| 3899 | TCP | | Remote Administrator | Unofficial |
| 3900 | TCP | | udt_os, IBM UniData UDT OS[38] | Official |
| 3945 | TCP | UDP | EMCADS service, a Giritech product used by G/On | Official |
| 3978 | TCP | UDP | OpenTTD game (masterserver and content service) | Unofficial |
| 3979 | TCP | UDP | OpenTTD game | Unofficial |
| 3999 | TCP | UDP | Norman distributed scanning service | Official |
| 4000 | TCP | UDP | Diablo II game | Unofficial |
| 4001 | TCP | | Microsoft Ants game | Unofficial |
| 4007 | TCP | | PrintBuzzer printer monitoring socket server | Unofficial |
| 4018 | TCP | UDP | protocol information and warnings | Official |
| 4069 | | UDP | Minger Email Address Verification Protocol[39] | Official |
| 4089 | TCP | UDP | OpenCORE Remote Control Service | Official |
| 4093 | TCP | UDP | PxPlus Client server interface ProvideX | Official |
| 4096 | TCP | UDP | Ascom Timeplex BRE (Bridge Relay Element) | Official |
| 4100 | | | WatchGuard Authentication Applet—default | Unofficial |
| 4111 | TCP | | Xgrid | Official |
| 4116 | TCP | UDP | Smartcard-TLS | Official |
| 4125 | TCP | | Microsoft Remote Web Workplace administration | Unofficial |
| 4201 | TCP | | TinyMUD and various derivatives | Unofficial |
| 4226 | TCP | UDP | Aleph One (game) | Unofficial |
| 4224 | TCP | | Cisco Audio Session Tunneling | Unofficial |
| 4321 | TCP | | Referral Whois (RWhois) Protocol[40] | Official |
| 4323 | | UDP | Lincoln Electric's ArcLink/XT | Unofficial |
| 4433-4436 | TCP | | Axence nVision | Unofficial |
| 4500 | | UDP | IPSec NAT Traversal (RFC 3947) | Official |
| 4534 | | UDP | Armagetron Advanced default server port | Unofficial |
| 4567 | TCP | | Sinatra default server port in development mode (HTTP) | Unofficial |
| 4569 | | UDP | Inter-Asterisk eXchange (IAX2) | Official |
| 4610–4640 | TCP | | QualiSystems TestShell Suite Services | Unofficial |
| 4662 | | UDP | OrbitNet Message Service | Official |
| 4662 | TCP | | OrbitNet Message Service | Official |
| 4662 | TCP | | often used by eMule | Unofficial |
| 4664 | TCP | | Google Desktop Search | Unofficial |
| 4672 | | UDP | eMule—often used | Unofficial |
| 4711 | TCP | | McAfee Web Gateway 7 - Default GUI Port HTTP | Unofficial |
| 4712 | TCP | | McAfee Web Gateway 7 - Default GUI Port HTTPS | Unofficial |
| 4728 | TCP | | Computer Associates Desktop and Server Management (DMP)/Port Multiplexer [41] | Official |
| 4747 | TCP | | Apprentice | Unofficial |
| 4750 | TCP | | BladeLogic Agent | Unofficial |
| 4840 | TCP | UDP | OPC UA TCP Protocol for OPC Unified Architecture from OPC Foundation | Official |
| 4843 | TCP | UDP | OPC UA TCP Protocol over TLS/SSL for OPC Unified Architecture from OPC Foundation | Official |
| 4847 | TCP | UDP | Web Fresh Communication, Quadrion Software & Odorless Entertainment | Official |
| 4894 | TCP | UDP | LysKOM Protocol A | Official |
| 4899 | TCP | UDP | Radmin remote administration tool (program sometimes used by a Trojan horse) | Official |
| 4949 | TCP | | Munin Resource Monitoring Tool | Official |
| 4950 | TCP | UDP | Cylon Controls UC32 Communications Port | Official |
| 4982 | TCP | UDP | Solar Data Log (JK client app for PV solar inverters ) | Unofficial |
| 4993 | TCP | UDP | Home FTP Server web Interface Default Port | Unofficial |
| 5000 | TCP | | commplex-main | Official |
| 5000 | TCP | | UPnP—Windows network device interoperability | Unofficial |
| 5000 | TCP | | VTun—VPN Software | Unofficial |
| 5000 | | UDP | VTun—VPN Software | Unofficial |
| 5001 | TCP | | commplex-link | Official |
| 5001 | TCP | | Slingbox and Slingplayer | Unofficial |
| 5001 | TCP | | Iperf (Tool for measuring TCP and UDP bandwidth performance) | Unofficial |
| 5001 | | UDP | Iperf (Tool for measuring TCP and UDP bandwidth performance) | Unofficial |
| 5002 | TCP | | SOLICARD ARX[42] | Unofficial |
| 5003 | TCP | UDP | FileMaker | Official |
| 5004 | TCP | UDP,DCCP | RTP (Real-time Transport Protocol) media data (RFC 3551, RFC 4571) | Official |
| 5005 | TCP | UDP,DCCP | RTP (Real-time Transport Protocol) control protocol (RFC 3551, RFC 4571) | Official |
| 5029 | TCP | | Sonic Robot Blast 2 : Multiplayer | Unofficial |
| 5031 | TCP | UDP | AVM CAPI-over-TCP (ISDN over Ethernet tunneling) | Unofficial |
| 5050 | TCP | | Yahoo! Messenger | Unofficial |
| 5051 | TCP | | ita-agent Symantec Intruder Alert[43] | Official |
| 5060 | TCP | UDP | Session Initiation Protocol (SIP) | Official |
| 5061 | TCP | | Session Initiation Protocol (SIP) over TLS | Official |
| 5070 | TCP | | Binary Floor Control Protocol (BFCP),[44] 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) | Unofficial |
| 5082 | TCP | UDP | Qpur Communication Protocol | Official |
| 5083 | TCP | UDP | Qpur File Protocol | Official |
| 5084 | TCP | UDP | EPCglobal Low Level Reader Protocol (LLRP) | Official |
| 5085 | TCP | UDP | EPCglobal Low Level Reader Protocol (LLRP) over TLS | Official |
| 5093 | | UDP | SafeNet, Inc Sentinel LM, Sentinel RMS, License Manager, Client-to-Server | Official |
| 5099 | TCP | UDP | SafeNet, Inc Sentinel LM, Sentinel RMS, License Manager, Server-to-Server | Official |
| 5104 | TCP | | IBM Tivoli Framework NetCOOL/Impact[45] HTTP Service | Unofficial |
| 5106 | TCP | | A-Talk Common connection | Unofficial |
| 5107 | TCP | | A-Talk Remote server connection | Unofficial |
| 5108 | TCP | | VPOP3 Mail Server Webmail | Unofficial |
| 5109 | TCP | UDP | VPOP3 Mail Server Status | Unofficial |
| 5110 | TCP | | ProRat Server | Unofficial |
| 5121 | TCP | | Neverwinter Nights | Unofficial |
| 5150 | TCP | UDP | ATMP Ascend Tunnel Management Protocol[46] | Official |
| 5150 | TCP | UDP | Malware Cerberus RAT | Unofficial |
| 5151 | TCP | | ESRI SDE Instance | Official |
| 5151 | | UDP | ESRI SDE Remote Start | Official |
| 5154 | TCP | UDP | BZFlag | Official |
| 5176 | TCP | | ConsoleWorks default UI interface | Unofficial |
| 5190 | TCP | | ICQ and AOL Instant Messenger | Official |
| 5222 | TCP | | Extensible Messaging and Presence Protocol (XMPP) client connection[47] | Official |
| 5223 | TCP | | Extensible Messaging and Presence Protocol (XMPP) client connection over SSL | Unofficial |
| 5246 | | UDP | Control And Provisioning of Wireless Access Points (CAPWAP) CAPWAP control)[48] | Official |
| 5247 | | UDP | Control And Provisioning of Wireless Access Points (CAPWAP) CAPWAP data[48] | Official |
| 5269 | TCP | | Extensible Messaging and Presence Protocol (XMPP) server connection[47] | Official |
| 5298 | TCP | UDP | Extensible Messaging and Presence Protocol (XMPP) JEP-0174: Link-Local Messaging / XEP-0174: Serverless Messaging | Official |
| 5310 | TCP | UDP | Ginever.net data communication port | Unofficial |
| 5311 | TCP | UDP | Ginever.net data communication port | Unofficial |
| 5312 | TCP | UDP | Ginever.net data communication port | Unofficial |
| 5313 | TCP | UDP | Ginever.net data communication port | Unofficial |
| 5314 | TCP | UDP | Ginever.net data communication port | Unofficial |
| 5315 | TCP | UDP | Ginever.net data communication port | Unofficial |
| 5351 | TCP | UDP | NAT Port Mapping Protocol—client-requested configuration for inbound connections through network address translators | Official |
| 5353 | | UDP | Multicast DNS (mDNS) | Official |
| 5355 | TCP | UDP | LLMNR—Link-Local Multicast Name Resolution, allows hosts to perform name resolution for hosts on the same local link (only provided by Windows Vista and Server 2008) | Official |
| 5357 | TCP | UDP | Web Services for Devices (WSDAPI) (only provided by Windows Vista, Windows 7 and Server 2008) | Unofficial |
| 5358 | TCP | UDP | WSDAPI Applications to Use a Secure Channel (only provided by Windows Vista, Windows 7 and Server 2008) | Unofficial |
| 5402 | TCP | UDP | mftp, Stratacache OmniCast content delivery system MFTP file sharing protocol | Official |
| 5405 | TCP | UDP | NetSupport Manager | Official |
| 5421 | TCP | UDP | NetSupport Manager | Official |
| 5432 | TCP | UDP | PostgreSQL database system | Official |
| 5433 | TCP | | Bouwsoft file/webserver <http://www.bouwsoft.be> | Unofficial |
| 5445 | | UDP | Cisco Unified Video Advantage | Unofficial |
| 5450 | TCP | | OSIsoft PI Server Client Access | Unofficial |
| 5457 | TCP | | OSIsoft PI Asset Framework Client Access | Unofficial |
| 5458 | TCP | | OSIsoft PI Notifications Client Access | Unofficial |
| 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 |
| 5550 | TCP | | Hewlett-Packard Data Protector | Unofficial |
| 5555 | TCP | | Freeciv versions up to 2.0, Hewlett-Packard Data Protector, McAfee EndPoint Encryption Database Server, SAP | Unofficial |
| 5556 | TCP | UDP | Freeciv | Official |
| 5591 | TCP | | Default for Tidal Enterprise Scheduler master-Socket used for communication between Agent-to-Master, though can be changed | Unofficial |
| 5631 | TCP | | pcANYWHEREdata, Symantec pcAnywhere (version 7.52 and later[49])[50] data | Official |
| 5632 | | UDP | pcANYWHEREstat, Symantec pcAnywhere (version 7.52 and later) status | Official |
| 5656 | TCP | | IBM Sametime p2p file transfer | Unofficial |
| 5666 | TCP | | NRPE (Nagios) | Unofficial |
| 5667 | TCP | | NSCA (Nagios) | Unofficial |
| 5678 | | UDP | Mikrotik RouterOS Neighbor Discovery Protocol (MNDP) | Unofficial |
| 5721 | TCP | UDP | Kaseya | Unofficial |
| 5723 | TCP | | Operations Manager | 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 |
| 5850 | TCP | | COMIT SE (PCR) | Unofficial |
| 5852 | TCP | | Adeona client: communications to OpenDHT | Unofficial |
| 5900 | TCP | UDP | Virtual Network Computing (VNC) remote desktop protocol (used by Apple Remote Desktop and others) | Official |
| 5912 | TCP | | Default for Tidal Enterprise Scheduler agent-Socket used for communication between Master-to-Agent, though can be changed | Unofficial |
| 5938 | TCP | UDP | TeamViewer[51] remote desktop protocol | Unofficial |
| 5984 | TCP | UDP | CouchDB database server | Official |
| 5999 | TCP | | CVSup [52] file update tool | 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 for BMC Software Control-M/Server—Socket used for communication between Control-M processes—though often changed during installation | Official |
| 6005 | TCP | | Default for Camfrog Chat & Cam Client http://www.camfrog.com | Unofficial |
| 6050 | TCP | | Brightstor Arcserve Backup | Unofficial |
| 6050 | TCP | | Nortel Software | Unofficial |
| 6051 | TCP | | Brightstor Arcserve Backup | Unofficial |
| 6072 | TCP | | iOperator Protocol Signal Port | Unofficial |
| 6086 | TCP | | PDTP—FTP like file server in a P2P network | Official |
| 6100 | TCP | | Vizrt System | Unofficial |
| 6100 | TCP | | Ventrilo This is the authentication port that must be allowed outbound for version 3 of Ventrilo | Official |
| 6101 | TCP | | Backup Exec Agent Browser | Unofficial |
| 6110 | TCP | UDP | softcm, HP Softbench CM | Official |
| 6111 | TCP | UDP | spc, HP Softbench Sub-Process Control | Official |
| 6112 | | UDP | "dtspcd"—a network daemon that accepts requests from clients to execute commands and launch applications remotely | 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, Relic gaming sercive | Unofficial |
| 6112 | TCP | | Club Penguin Disney online game for kids | Unofficial |
| 6113 | TCP | | Club Penguin Disney online game for kids | Unofficial |
| 6129 | TCP | | DameWare Remote Control | Official |
| 6257 | | UDP | WinMX (see also 6699) | Unofficial |
| 6260 | TCP | UDP | planet M.U.L.E. | Unofficial |
| 6262 | TCP | | Sybase Advantage Database Server | Unofficial |
| 6343 | | UDP | SFlow, sFlow traffic monitoring | Official |
| 6346 | TCP | UDP | gnutella-svc, gnutella (FrostWire, Limewire, Shareaza, etc.) | Official |
| 6347 | TCP | UDP | gnutella-rtr, Gnutella alternate | Official |
| 6350 | TCP | UDP | App Discovery and Access Protocol | Official |
| 6389 | TCP | | EMC CLARiiON | Unofficial |
| 6432 | TCP | | PgBouncer - A connection pooler for PostgreSQL | Official |
| 6444 | TCP | UDP | Sun Grid Engine—Qmaster Service | Official |
| 6445 | TCP | UDP | Sun Grid Engine—Execution Service | Official |
| 6502 | TCP | UDP | Netop Business Solutions - NetOp Remote Control | Unofficial |
| 6503 | | UDP | Netop Business Solutions - NetOp School | Unofficial |
| 6522 | TCP | | Gobby (and other libobby-based software) | Unofficial |
| 6523 | TCP | | Gobby 0.5 (and other libinfinity-based software) | Unofficial |
| 6543 | | UDP | Paradigm Research & Development Jetnet[53] default | Unofficial |
| 6566 | TCP | | SANE (Scanner Access Now Easy)—SANE network scanner daemon | Unofficial |
| 6571 | | | Windows Live FolderShare client | Unofficial |
| 6600 | TCP | | Music Playing Daemon (MPD) | Unofficial |
| 6619 | TCP | UDP | odette-ftps, Odette File Transfer Protocol (OFTP) over TLS/SSL | Official |
| 6646 | | UDP | McAfee Network Agent | Unofficial |
| 6660–6664 | TCP | | Internet Relay Chat (IRC) | Unofficial |
| 6665–6669 | TCP | | Internet Relay Chat (IRC) | Official |
| 6679 | TCP | | IRC SSL (Secure Internet Relay Chat)—often used | Unofficial |
| 6697 | TCP | | IRC SSL (Secure Internet Relay Chat)—often used | Unofficial |
| 6699 | TCP | | WinMX (see also 6257) | Unofficial |
| 6702 | TCP | | Default for Tidal Enterprise Scheduler client-Socket used for communication between Client-to-Master, though can be changed | Unofficial |
| 6771 | | UDP | Polycom server broadcast | Unofficial |
| 6789 | TCP | | Datalogger Support Software Campbell Scientific Loggernet Software | Unofficial |
| 6881–6887 | TCP | UDP | BitTorrent part of full range of ports used most often | Unofficial |
| 6888 | TCP | UDP | MUSE | Official |
| 6888 | TCP | UDP | BitTorrent part of full range of ports used most often | Unofficial |
| 6889–6890 | TCP | UDP | BitTorrent part of full range of ports used most often | Unofficial |
| 6891–6900 | TCP | UDP | BitTorrent part of full range of ports used most often | Unofficial |
| 6891–6900 | TCP | UDP | Windows Live Messenger (File transfer) | Unofficial |
| 6901 | TCP | UDP | Windows Live Messenger (Voice) | Unofficial |
| 6901 | TCP | UDP | BitTorrent part of full range of ports used most often | Unofficial |
| 6902–6968 | TCP | UDP | BitTorrent part of full range of ports used most often | Unofficial |
| 6969 | TCP | UDP | acmsoda | Official |
| 6969 | TCP | | BitTorrent tracker | Unofficial |
| 6970–6999 | TCP | UDP | BitTorrent part of full range of ports used most often | Unofficial |
| 7000 | TCP | | Default for Vuze's built in HTTPS Bittorrent Tracker | Unofficial |
| 7001 | TCP | | Default for BEA WebLogic Server's HTTP server, though often changed during installation | Unofficial |
| 7002 | TCP | | Default for BEA WebLogic Server's HTTPS server, though often changed during installation | Unofficial |
| 7005 | TCP | | Default for BMC Software Control-M/Server and Control-M/Agent for Agent-to-Server, though often changed during installation | Unofficial |
| 7006 | TCP | | Default for BMC Software Control-M/Server and Control-M/Agent for Server-to-Agent, though often changed during installation | Unofficial |
| 7010 | TCP | | Default for Cisco AON AMC (AON Management Console) [54] | Unofficial |
| 7025 | TCP | | Zimbra LMTP [mailbox]—local mail delivery | Unofficial |
| 7047 | TCP | | Zimbra conversion server | Unofficial |
| 7133 | TCP | | Enemy Territory: Quake Wars | Unofficial |
| 7144 | TCP | | Peercast | Unofficial |
| 7145 | TCP | | Peercast | Unofficial |
| 7171 | TCP | | Tibia | Unofficial |
| 7306 | TCP | | Zimbra mysql [mailbox] | Unofficial |
| 7307 | TCP | | Zimbra mysql [logger] | Unofficial |
| 7312 | | UDP | Sibelius License Server | Unofficial |
| 7400 | TCP | UDP | RTPS (Real Time Publish Subscribe) DDS Discovery | Official |
| 7401 | TCP | UDP | RTPS (Real Time Publish Subscribe) DDS User-Traffic | Official |
| 7402 | TCP | UDP | RTPS (Real Time Publish Subscribe) DDS Meta-Traffic | Official |
| 7547 | TCP | UDP | CPE WAN Management Protocol Technical Report 069 | Official |
| 7615 | TCP | | ISL Online[55] communication protocol | Unofficial |
| 7670 | TCP | | BrettspielWelt BSW Boardgame Portal | Unofficial |
| 7676 | TCP | | Aqumin AlphaVision Remote Command Interface | Unofficial |
| 7700 | | UDP | P2P DC (RedHub) | Unofficial |
| 7777 | TCP | | iChat server file transfer proxy | Unofficial |
| 7777 | TCP | | Oracle Cluster File System 2 | Unofficial |
| 7777 | TCP | | Windows backdoor program tini.exe default | Unofficial |
| 7777 | TCP | | Xivio.com Chat Server Interface | Unofficial |
| 7778 | TCP | | Bad Trip MUD | Unofficial |
| 7777-7788 | | UDP | Unreal Tournament series default server | Unofficial |
| 7777-7788 | TCP | | Unreal Tournament series default server | Unofficial |
| 7787-7788 | TCP | | GFI EventsManager 7 & 8 | Official |
| 7831 | TCP | | Default used by Smartlaunch Internet Cafe Administration[56] software | Unofficial |
| 7880 | TCP | UDP | PowerSchool Gradebook Server | Unofficial |
| 7915 | TCP | | Default for YSFlight server [1] | Unofficial |
| 7935 | TCP | | Fixed port used for Adobe Flash Debug Player to communicate with a debugger (Flash IDE, Flex Builder or fdb).[57] | Unofficial |
| 7937-9936 | TCP | UDP | EMC2 (Legato) Networker or Sun Solcitice Backup | Official |
| 8000 | | UDP | iRDMI (Intel Remote Desktop Management Interface)[58]—sometimes erroneously used instead of port 8080 | Official |
| 8000 | TCP | | iRDMI (Intel Remote Desktop Management Interface)[58]—sometimes erroneously used instead of port 8080 | Official |
| 8000 | TCP | | Commonly used for internet radio streams such as those using SHOUTcast | Unofficial |
| 8001 | TCP | | Commonly used for internet radio streams such as those using SHOUTcast | Unofficial |
| 8002 | TCP | | Cisco Systems Unified Call Manager Intercluster | Unofficial |
| 8008 | TCP | | HTTP Alternate | Official |
| 8008 | TCP | | IBM HTTP Server administration default | Unofficial |
| 8009 | TCP | | ajp13—Apache JServ Protocol AJP Connector | Unofficial |
| 8010 | TCP | | XMPP File transfers | Unofficial |
| 8011-8014 | TCP | | HTTP/TCP Symon Communications Event and Query Engine | Unofficial |
| 8074 | TCP | | Gadu-Gadu | Unofficial |
| 8078 | TCP | UDP | Default port for most Endless Online-based servers | 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 | | Apache Tomcat | Unofficial |
| 8080 | | UDP | FilePhile Master/Relay | Unofficial |
| 8081 | TCP | | HTTP alternate, VibeStreamer, e.g. McAfee ePolicy Orchestrator (ePO) | Unofficial |
| 8086 | TCP | | HELM Web Host Automation Windows Control Panel | Unofficial |
| 8086 | TCP | | Kaspersky AV Control Center | Unofficial |
| 8087 | TCP | | Hosting Accelerator Control Panel | Unofficial |
| 8087 | TCP | | Parallels Plesk Control Panel | Unofficial |
| 8087 | | UDP | Kaspersky AV Control Center | Unofficial |
| 8089 | TCP | | Splunk Daemon | Unofficial |
| 8090 | TCP | | HTTP Alternate (http_alt_alt)—used as an alternative to port 8080 | Unofficial |
| 8116 | | UDP | Check Point Cluster Control Protocol | Unofficial |
| 8118 | TCP | | Privoxy—advertisement-filtering Web proxy | Official |
| 8123 | TCP | | Polipo Web proxy | Official |
| 8192 | TCP | | Sophos Remote Management System | Unofficial |
| 8193 | TCP | | Sophos Remote Management System | Unofficial |
| 8194 | TCP | | Sophos Remote Management System | Unofficial |
| 8200 | TCP | | GoToMyPC | Unofficial |
| 8222 | TCP | | VMware Server Management User Interface[59] (insecure Web interface).[60] See also port 8333 | Unofficial |
| 8243 | TCP | UDP | HTTPS listener for Apache Synapse [61] | Official |
| 8280 | TCP | UDP | HTTP listener for Apache Synapse [61] | Official |
| 8291 | TCP | | Winbox—Default on a MikroTik RouterOS for a Windows application used to administer MikroTik RouterOS | Unofficial |
| 8303 | | UDP | Teeworlds Server | Official |
| 8332 | TCP | | Bitcoin JSON-RPC server[62] | Unofficial |
| 8333 | TCP | | Bitcoin[63] | Unofficial |
| 8333 | TCP | | VMware Server Management User Interface[59] (secure Web interface).[60] See also port 8222 | Unofficial |
| 8400 | TCP | UDP | cvp, Commvault Unified Data Management | Official |
| 8442 | TCP | UDP | CyBro A-bus, Cybrotech Ltd. | Official |
| 8443 | TCP | | SW Soft Plesk Control Panel, Apache Tomcat SSL, Promise WebPAM SSL | Unofficial |
| 8484 | TCP | UDP | MapleStory | Unofficial |
| 8500 | TCP | UDP | ColdFusion Macromedia/Adobe ColdFusion default and Duke Nukem 3D—default | Unofficial |
| 8501 | TCP | | [2] DukesterX —default | Unofficial |
| 8691 | TCP | | Ultra Fractal default server port for distributing calculations over network computers | Unofficial |
| 8701 | | UDP | SoftPerfect Bandwidth Manager | Unofficial |
| 8702 | | UDP | SoftPerfect Bandwidth Manager | Unofficial |
| 8767 | | UDP | TeamSpeak—default | Unofficial |
| 8768 | | UDP | TeamSpeak—alternate | Unofficial |
| 8880 | | UDP | cddbp-alt, CD DataBase (CDDB) protocol (CDDBP) alternate | Official |
| 8880 | TCP | | cddbp-alt, CD DataBase (CDDB) protocol (CDDBP) alternate | Official |
| 8880 | TCP | | WebSphere Application Server SOAP connector default | Unofficial |
| 8880 | TCP | | Win Media Streamer to Server SOAP connector default | Unofficial |
| 8881 | TCP | | Atlasz Informatics Research Ltd [3] Secure Application Server | Unofficial |
| 8882 | TCP | | Atlasz Informatics Research Ltd [4] Secure Application Server | Unofficial |
| 8883 | TCP | UDP | Secure MQ Telemetry Transport (MQTT over SSL) | Official |
| 8888 | | UDP | NewsEDGE server | Official |
| 8888 | TCP | | NewsEDGE server | Official |
| 8888 | TCP | | Sun Answerbook dwhttpd server (deprecated by docs.sun.com) | Unofficial |
| 8888 | TCP | | GNUmp3d HTTP music streaming and Web interface | Unofficial |
| 8888 | TCP | | LoLo Catcher HTTP Web interface (www.optiform.com) | Unofficial |
| 8888 | TCP | | D2GS Admin Console Telnet administration console for D2GS servers (Diablo 2) | Unofficial |
| 8888 | TCP | | Earthland Relams 2 Server (AU1_2) | Unofficial |
| 8889 | TCP | | Earthland Relams 2 Server (AU1_1) | Unofficial |
| 8983 | TCP | | Default for Apache Solr 1.4 | Unofficial |
| 9000 | TCP | | Buffalo LinkSystem Web access | Unofficial |
| 9000 | TCP | | DBGp | Unofficial |
| 9000 | TCP | | SqueezeCenter web server & streaming | Unofficial |
| 9000 | | UDP | UDPCast | Unofficial |
| 9001 | TCP | UDP | ETL Service Manager[64] | Official |
| 9001 | | | Microsoft Sharepoint Authoring Environment | Unofficial |
| 9001 | | | cisco-xremote router configuration | Unofficial |
| 9001 | | | Tor network default | Unofficial |
| 9001 | TCP | | DBGp Proxy | Unofficial |
| 9009 | TCP | UDP | Pichat Server—Peer to peer chat software | Official |
| 9030 | TCP | | Tor often used | Unofficial |
| 9043 | TCP | | WebSphere Application Server Administration Console secure | Unofficial |
| 9050 | TCP | | Tor | Unofficial |
| 9051 | TCP | | Tor | Unofficial |
| 9060 | TCP | | WebSphere Application Server Administration Console | Unofficial |
| 9080 | | UDP | glrpc, Groove Collaboration software GLRPC | Official |
| 9080 | TCP | | glrpc, Groove Collaboration software GLRPC | Official |
| 9080 | TCP | | WebSphere Application Server HTTP Transport (port 1) default | Unofficial |
| 9090 | TCP | | Webwasher, Secure Web, McAfee Web Gateway - Default Proxy Port | Unofficial |
| 9090 | TCP | | Openfire Administration Console | Unofficial |
| 9090 | TCP | | SqueezeCenter control (CLI) | Unofficial |
| 9091 | TCP | | Openfire Administration Console (SSL Secured) | Unofficial |
| 9100 | TCP | | PDL Data Stream | Official |
| 9101 | TCP | UDP | Bacula Director | Official |
| 9102 | TCP | UDP | Bacula File Daemon | Official |
| 9103 | TCP | UDP | Bacula Storage Daemon | Official |
| 9105 | TCP | UDP | Xadmin Control Daemon | Official |
| 9110 | | UDP | SSMP Message protocol | Unofficial |
| 9119 | TCP | UDP | MXit Instant Messenger | Official |
| 9293 | TCP | | Sony Playstation RemotePlay | Unofficial |
| 9300 | TCP | | IBM Cognos 8 SOAP Business Intelligence and Performance Management | Unofficial |
| 9303 | | UDP | D-Link Shareport Share storage and MFP printers | Unofficial |
| 9306 | TCP | | Sphinx Native API | Official |
| 9312 | TCP | | Sphinx SphinxQL | Official |
| 9418 | TCP | UDP | git, Git pack transfer service | Official |
| 9420 | TCP | | MooseFS distributed file system—master server to chunk servers | Unofficial |
| 9421 | TCP | | MooseFS distributed file system—master server to clients | Unofficial |
| 9422 | TCP | | MooseFS distributed file system—chunk servers to clients | Unofficial |
| 9535 | TCP | UDP | mngsuite, LANDesk Management Suite Remote Control | Official |
| 9536 | TCP | UDP | laes-bf, IP Fabrics Surveillance buffering function | Official |
| 9561 | TCP | UDP | Network Time System Server | Unofficial |
| 9600 | | UDP | Omron FINS, OMRON FINS PLC communication | Official |
| 9695 | | UDP | CCNx | Official |
| 9800 | TCP | UDP | WebDAV Source | Official |
| 9800 | | | WebCT e-learning portal | Unofficial |
| 9875 | TCP | | Club Penguin Disney online game for kids | Unofficial |
| 9898 | | UDP | MonkeyCom | Official |
| 9898 | TCP | | MonkeyCom | Official |
| 9898 | TCP | | Tripwire—File Integrity Monitoring Software | Unofficial |
| 9987 | | UDP | TeamSpeak 3 server default (voice) port (for the conflicting service see the IANA list) | Unofficial |
| 9996 | TCP | UDP | The Palace "The Palace" Virtual Reality Chat software.—5 | Official |
| 9999 | | | Hydranode—edonkey2000 TELNET control | Unofficial |
| 9999 | TCP | | Lantronix UDS-10/UDS100[65] RS-485 to Ethernet Converter TELNET control | Unofficial |
| 9999 | | | Urchin Web Analytics | Unofficial |
| 10000 | | | Webmin—Web-based Linux admin tool | Unofficial |
| 10000 | | | BackupExec | Unofficial |
| 10000 | | | Ericsson Account Manager (avim) | Unofficial |
| 10001 | TCP | | Lantronix UDS-10/UDS100[66] RS-485 to Ethernet Converter default | Unofficial |
| 10008 | TCP | UDP | Octopus Multiplexer, primary port for the CROMP protocol, which provides a platform-independent means for communication of objects across a network | Official |
| 10009 | TCP | UDP | Cross Fire, a multiplayer online First Person Shooter. |
| 10010 | TCP | | Open Object Rexx (ooRexx) rxapi daemon | Official |
| 10017 | | | AIX,NeXT, HPUX—rexd daemon control | Unofficial |
| 10024 | TCP | | Zimbra smtp [mta]—to amavis from postfix | Unofficial |
| 10025 | TCP | | Zimbra smtp [mta]—back to postfix from amavis | Unofficial |
| 10050 | TCP | UDP | Zabbix-Agent | Official |
| 10051 | TCP | UDP | Zabbix-Trapper | Official |
| 10113 | TCP | UDP | NetIQ Endpoint | Official |
| 10114 | TCP | UDP | NetIQ Qcheck | Official |
| 10115 | TCP | UDP | NetIQ Endpoint | Official |
| 10116 | TCP | UDP | NetIQ VoIP Assessor | Official |
| 10200 | TCP | | FRISK Software International's fpscand virus scanning daemon for Unix platforms [67] | Unofficial |
| 10200 | TCP | | FRISK Software International's f-protd virus scanning daemon for Unix platforms [68] | Unofficial |
| 10201–10204 | TCP | | FRISK Software International's f-protd virus scanning daemon for Unix platforms [68] | Unofficial |
| 10308 | | | Lock-on: Modern Air Combat | Unofficial |
| 10480 | | | SWAT 4 Dedicated Server | Unofficial |
| 11211 | | | memcached | Unofficial |
| 11235 | | | Savage:Battle for Newerth Server Hosting | Unofficial |
| 11294 | | | Blood Quest Online Server | Unofficial |
| 11371 | | | OpenPGP HTTP key server | Official |
| 11576 | | | IPStor Server management communication | Unofficial |
| 12010 | TCP | | ElevateDB default database port [69] | Unofficial |
| 12011 | TCP | | Axence nVision | Unofficial |
| 12012 | TCP | | Axence nVision | Unofficial |
| 12012 | TCP | | Audition Online Dance Battle, Korea Server—Status/Version Check | Unofficial |
| 12012 | | UDP | Audition Online Dance Battle, Korea Server—Status/Version Check | Unofficial |
| 12013 | TCP | UDP | Audition Online Dance Battle, Korea Server | Unofficial |
| 12035 | | UDP | Linden Lab viewer to sim on SecondLife | Unofficial |
| 12222 | | UDP | Light Weight Access Point Protocol (LWAPP) LWAPP data (RFC 5412) | Official |
| 12223 | | UDP | Light Weight Access Point Protocol (LWAPP) LWAPP control (RFC 5412) | Official |
| 12345 | | | NetBus—remote administration tool (often Trojan horse). Also used by NetBuster. Little Fighter 2 (TCP). | Unofficial |
| 12489 | TCP | | NSClient/NSClient++/NC_Net (Nagios) | Unofficial |
| 12975 | TCP | | LogMeIn Hamachi (VPN tunnel software; also port 32976)—used to connect to Mediation Server (bibi.hamachi.cc); will attempt to use SSL (TCP port 443) if both 12975 & 32976 fail to connect | Unofficial |
| 12998–12999 | | UDP | Takenaka RDI Mirror World on SecondLife | Unofficial |
| 13000–13050 | | UDP | Linden Lab viewer to sim on SecondLife | Unofficial |
| 13008 | TCP | UDP | Cross Fire, a multiplayer online First Person Shooter. |
| 13076 | TCP | | Default for BMC Software Control-M/Enterprise Manager Corba communication, though often changed during installation | Official |
| 13720 | TCP | UDP | Symantec NetBackup—bprd (formerly VERITAS) | Official |
| 13721 | TCP | UDP | Symantec NetBackup—bpdbm (formerly VERITAS) | Official |
| 13724 | TCP | UDP | Symantec Network Utility—vnetd (formerly VERITAS) | Official |
| 13782 | TCP | UDP | Symantec NetBackup—bpcd (formerly VERITAS) | Official |
| 13783 | TCP | UDP | Symantec VOPIED protocol (formerly VERITAS) | Official |
| 13785 | TCP | UDP | Symantec NetBackup Database—nbdb (formerly VERITAS) | Official |
| 13786 | TCP | UDP | Symantec nomdb (formerly VERITAS) | Official |
| 14439 | TCP | | APRS UI-View Amateur Radio[70] UI-WebServer | Unofficial |
| 14567 | | UDP | Battlefield 1942 and mods | Unofficial |
| 15000 | TCP | | psyBNC | Unofficial |
| 15000 | TCP | | Wesnoth | Unofficial |
| 15000 | TCP | | Kaspersky Network Agent | Unofficial |
| 15000 | TCP | | hydap, Hypack Hydrographic Software Packages Data Acquisition | Official |
| 15000 | | UDP | hydap, Hypack Hydrographic Software Packages Data Acquisition | Official |
| 15567 | | UDP | Battlefield Vietnam and mods | Unofficial |
| 15345 | TCP | UDP | XPilot Contact | Official |
| 16000 | TCP | | shroudBNC | Unofficial |
| 16080 | TCP | | Mac OS X Server Web (HTTP) service with performance cache[71] | Unofficial |
| 16384 | | UDP | Iron Mountain Digital online backup | Unofficial |
| 16567 | | UDP | Battlefield 2 and mods | Unofficial |
| 17500 | TCP | | Dropbox LanSync Protocol (db-lsp); used to synchronize file catalogs between Dropbox clients on your local network. | Official |
| 17500 | | UDP | Dropbox LanSync Discovery (db-lsp-disc); used to synchronize file catalogs between Dropbox clients on your local network; is transmitted to broadcast addresses. | Official |
| 18010 | TCP | | Super Dancer Online Extreme(SDO-X)—CiB Net Station Malaysia Server | Unofficial |
| 18104 | TCP | | RAD PDF Service | Official |
| 18180 | TCP | | DART Reporting server | Unofficial |
| 18200 | TCP | UDP | Audition Online Dance Battle, AsiaSoft Thailand Server—Status/Version Check | Unofficial |
| 18201 | TCP | UDP | Audition Online Dance Battle, AsiaSoft Thailand Server | Unofficial |
| 18206 | TCP | UDP | Audition Online Dance Battle, AsiaSoft Thailand Server—FAM Database | Unofficial |
| 18300 | TCP | UDP | Audition Online Dance Battle, AsiaSoft SEA Server—Status/Version Check | Unofficial |
| 18301 | TCP | UDP | Audition Online Dance Battle, AsiaSoft SEA Server | Unofficial |
| 18306 | TCP | UDP | Audition Online Dance Battle, AsiaSoft SEA Server—FAM Database | Unofficial |
| 18400 | TCP | UDP | Audition Online Dance Battle, KAIZEN Brazil Server—Status/Version Check | Unofficial |
| 18401 | TCP | UDP | Audition Online Dance Battle, KAIZEN Brazil Server | Unofficial |
| 18505 | TCP | UDP | Audition Online Dance Battle, Nexon Server—Status/Version Check | Unofficial |
| 18506 | TCP | UDP | Audition Online Dance Battle, Nexon Server | Unofficial |
| 18605 | TCP | UDP | X-BEAT—Status/Version Check | Unofficial |
| 18606 | TCP | UDP | X-BEAT | Unofficial |
| 19000 | TCP | UDP | Audition Online Dance Battle, G10/alaplaya Server—Status/Version Check | Unofficial |
| 19001 | TCP | UDP | Audition Online Dance Battle, G10/alaplaya Server | Unofficial |
| 19226 | TCP | | Panda Software AdminSecure Communication Agent | Unofficial |
| 19283 | TCP | UDP | K2 - KeyAuditor & KeyServer, Sassafras Software Inc. Software Asset Management tools | Official |
| 19294 | TCP | | Google Talk Voice and Video connections [72] | Unofficial |
| 19295 | | UDP | Google Talk Voice and Video connections [72] | Unofficial |
| 19302 | | UDP | Google Talk Voice and Video connections [72] | Unofficial |
| 19315 | TCP | UDP | KeyShadow for K2 - KeyAuditor & KeyServer, Sassafras Software Inc. Software Asset Management tools | Official |
| 19638 | TCP | | Ensim Control Panel | Unofficial |
| 19771 | TCP | UDP | Softros LAN Messenger | Unofficial |
| 19812 | TCP | | 4D database SQL Communication | Unofficial |
| 19813 | TCP | | 4D database Client Server Communication | Unofficial |
| 19814 | TCP | | 4D database DB4D Communication | Unofficial |
| 19880 | TCP | | Softros LAN Messenger | Unofficial |
| 19999 | | | DNP - Secure (Distributed Network Protocol - Secure), a secure version of the protocol used in SCADA systems between communicating RTU's and IED's | Official |
| 20000 | | | DNP (Distributed Network Protocol), a protocol used in SCADA systems between communicating RTU's and IED's | Official |
| 20000 | | | Usermin, Web-based user tool | Unofficial |
| 20014 | TCP | | DART Reporting server | Unofficial |
| 20720 | TCP | | Symantec i3 Web GUI server | Unofficial |
| 21001 | TCP | | AMLFilter, AMLFilter Inc. amlf-admin default port | Unofficial |
| 21011 | TCP | | AMLFilter, AMLFilter Inc. amlf-engine-01 default http port | Unofficial |
| 21012 | TCP | | AMLFilter, AMLFilter Inc. amlf-engine-01 default https port | Unofficial |
| 21021 | TCP | | AMLFilter, AMLFilter Inc. amlf-engine-02 default http port | Unofficial |
| 21022 | TCP | | AMLFilter, AMLFilter Inc. amlf-engine-02 default https port | Unofficial |
| 22136 | TCP | | FLIR Systems Camera Resource Protocol | Unofficial |
| 22347 | TCP | UDP | WibuKey, WIBU-SYSTEMS AG Software protection system | Official |
| 22350 | TCP | UDP | CodeMeter, WIBU-SYSTEMS AG Software protection system | Official |
| 23073 | | | Soldat Dedicated Server | Unofficial |
| 23399 | | | Skype Default Protocol | Unofficial |
| 23513 | | | Duke Nukem 3D#Source code Duke Nukem Ports | Unofficial |
| 24444 | | | NetBeans integrated development environment | Unofficial |
| 24465 | TCP | UDP | Tonido Directory Server for Tonido which is a Personal Web App and P2P platform | 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 |
| 25565 | | | Amazing Freebuild Original Minecraft Freebuild Server | Unofficial |
| 25565 | | | Minecraft Dedicated Server | Unofficial |
| 25565 | | | MySQL Standart MySQL port | Unofficial |
| 25888 | | UDP | Xfire (Firewall Report, UDP_IN) IP Address (206.220.40.146) resolves to gameservertracking.xfire.com. Use unknown. | Unofficial |
| 25999 | TCP | | Xfire | Unofficial |
| 26000 | | UDP | id Software's Quake server | Official |
| 26000 | TCP | | id Software's Quake server | Official |
| 26000 | TCP | | CCP's EVE Online Online gaming MMORPG | Unofficial |
| 26900 | TCP | | CCP's EVE Online Online gaming MMORPG | Unofficial |
| 26901 | TCP | | CCP's EVE Online Online gaming MMORPG | Unofficial |
| 27000 | | UDP | (through 27006) id Software's QuakeWorld master server | Unofficial |
| 27000-27009 | TCP | | FlexNet Publisher's License server (from the range of default ports) | Unofficial |
| 27010 | | | Source engine dedicated server port | Unofficial |
| 27014 | | | Source engine dedicated server port (rare) | Unofficial |
| 27015 | | | GoldSrc and Source engine dedicated server port | Unofficial |
| 27016 | | | Magicka server port | Unofficial |
| 27017 | | | mongoDB server port | Unofficial |
| 27374 | | | Sub7 default. | Unofficial |
| 27500 | | UDP | (through 27900) id Software's QuakeWorld | Unofficial |
| 27888 | | UDP | Kaillera server | Unofficial |
| 27900-27901 | | | 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, Quake III and Quake Live and some ioquake3 derived games | Unofficial |
| 28000 | | | Bitfighter Common/default Bitfighter Server | Unofficial |
| 28001 | | | Starsiege: Tribes Common/default Tribes v.1 Server | Unofficial |
| 28395 | TCP | | www.SmartSystemsLLC.com Used by Smart Sale 5.0 | Unofficial |
| 28910 | | | Nintendo Wi-Fi Connection | Unofficial |
| 28960 | | UDP | Call of Duty; Call of Duty: United Offensive; Call of Duty 2; Call of Duty 4: Modern Warfare; Call of Duty: World at War (PC Version) | Unofficial |
| 29000 | | | Perfect World International Used by the Perfect World International Client | Unofficial |
| 29900-29901 | | | Nintendo Wi-Fi Connection | Unofficial |
| 29920 | | | Nintendo Wi-Fi Connection | Unofficial |
| 30000 | | | Pokémon Netbattle | Unofficial |
| 30301 | | | BitTorrent | Unofficial |
| 30564 | TCP | | Multiplicity: keyboard/mouse/clipboard sharing software | Unofficial |
| 30718 | | UDP | Lantronix Discovery for Lantronix serial-to-ethernet devices | Unofficial |
| 30777 | TCP | | ZangZing agent | Unofficial |
| 31337 | TCP | | Back Orifice—remote administration tool (often Trojan horse) | Unofficial |
| 31415 | | | ThoughtSignal—Server Communication Service (often Informational) | Unofficial |
| 31456 | TCP | | TetriNET IRC gateway on some servers | Unofficial |
| 31457 | TCP | | TetriNET | Official |
| 31458 | TCP | | TetriNET Used for game spectators | Unofficial |
| 32123 | TCP | | x3Lobby Used by x3Lobby, an internet application. | Unofficial |
| 32245 | TCP | | MMTSG-mutualed over MMT (encrypted transmission) | Unofficial |
| 32769 | TCP | | FileNet RPC | Unofficial |
| 32976 | TCP | | LogMeIn Hamachi (VPN tunnel software; also port 12975)—used to connect to Mediation Server (bibi.hamachi.cc); will attempt to use SSL (TCP port 443) if both 12975 & 32976 fail to connect | Unofficial |
| 33434 | TCP | UDP | traceroute | Official |
| 34443 | | | Linksys PSUS4 print server | Unofficial |
| 36963 | | UDP | Any of the USGN online games, most notably Counter Strike 2D multiplayer (2D clone of popular CounterStrike computer game) | Unofficial |
| 37659 | TCP | | Axence nVision | Unofficial |
| 37777 | TCP | | Digital Video Recorder hardware | Unofficial |
| 40000 | TCP | UDP | SafetyNET p Real-time Industrial Ethernet protocol | Official |
| 43047 | TCP | | TheòsMessenger second port for service TheòsMessenger | Official |
| 43048 | TCP | | TheòsMessenger third port for service TheòsMessenger | Official |
| 43594–43595 | TCP | | Jagex, RuneScape, FunOrb, etc... | Unofficial |
| 47808 | TCP | UDP | BACnet Building Automation and Control Networks (4780810 = BAC016) | Official |
| 49151 | TCP | UDP | Reserved[1] | Official |
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