Service Name and Transport Protocol Port Number Registry
Last Updated
- 2026-10-22
Expert(s)
- TCP/UDP: Joe Touch; Eliot Lear, Kumiko Ono, Wes Eddy, Brian Trammell, and Michael Scharf
- SCTP: Michael Tuexen
- DCCP: Eddie Kohler and Yoshifumi Nishida
Reference
- RFC 6335: Internet Assigned Numbers Authority (IANA) Procedures for the Management of the Service Name and Transport Protocol Port Number Registry
Note
Service names and port numbers are used to distinguish between different services that run over transport protocols such as TCP, UDP, DCCP, and SCTP.
Service names are assigned on a First Come First Served basis, as described in RFC 6335.
Port numbers are divided into three ranges, with their uses and assignment procedures specified in Section 8.1.2 of RFC 6335:
- System Ports (0-1023) are assigned using the IETF Review or IESG Approval procedures.
- User Ports (1024-49151) are assigned using the IETF Review, IESG Approval, or Expert Review procedures.
- Dynamic and/or Private Ports (49152-65535) are not assigned.
The registration procedures for service names and port numbers are specified in RFC 6335, while the registration policies referenced above are defined in RFC 8126.
Assigned ports both System and User ports SHOULD NOT be used without or prior to IANA registration.
Assignment of a port number does not in any way imply an endorsement of an application or product, and the fact that network traffic is flowing to or from a registered port does not mean that it is "good" traffic, nor that it necessarily corresponds to the assigned service. Firewall and system administrators should choose how to configure their systems based on their knowledge of the traffic in question, not whether there is a port number registered or not.
Registration Forms
- To request a new assignment, please use the Application for Service Names and User Port Numbers form.
- To modify an existing assignment, please use the Modify a Port Number Assignment form.
Available Formats
| Service Name | Port Number | Transport Protocol | Description | Assignee | Contact | Registration Date | Modification Date | Reference | Service Code | Unauthorized Use Reported | Assignment Notes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| amt | 2268 | tcp | AMT | IESG | IETF Chair | 2004-12 | 2014-12-17 | RFC 7450 | |||
| amt | 2268 | udp | AMT | IESG | IETF Chair | 2004-12 | 2014-12-17 | RFC 7450 | |||
| mikey | 2269 | tcp | MIKEY | Karl Norrman | Karl Norrman | 2004-12 | |||||
| mikey | 2269 | udp | MIKEY | Karl Norrman | Karl Norrman | 2004-12 | |||||
| ibridge-mgmt | 2276 | tcp | iBridge Management | Patrick Fisher | Patrick Fisher | 2004-12 | |||||
| ibridge-mgmt | 2276 | udp | iBridge Management | Patrick Fisher | Patrick Fisher | 2004-12 | |||||
| nas-metering | 2286 | tcp | NAS-Metering | Steven Sawkins | Steven Sawkins | ||||||
| nas-metering | 2286 | udp | NAS-Metering | Steven Sawkins | Steven Sawkins | ||||||
| theta-lm | 2296 | tcp | Theta License Manager (Rainbow) | David Thompson | David Thompson | ||||||
| theta-lm | 2296 | udp | Theta License Manager (Rainbow) | David Thompson | David Thompson | ||||||
| tappi-boxnet | 2306 | tcp | TAPPI BoxNet | Richard Spartz | Richard Spartz | ||||||
| tappi-boxnet | 2306 | udp | TAPPI BoxNet | Richard Spartz | Richard Spartz | ||||||
| sent-lm | 2316 | tcp | SENT License Manager | Pisharath Krishnan | Pisharath Krishnan | ||||||
| sent-lm | 2316 | udp | SENT License Manager | Pisharath Krishnan | Pisharath Krishnan | ||||||
| idcp | 2326 | tcp | IDCP | Keisokugiken Corp. | Keisokugiken Corp. | ||||||
| idcp | 2326 | udp | IDCP | Keisokugiken Corp. | Keisokugiken Corp. | ||||||
| appleugcontrol | 2336 | tcp | Apple UG Control | Gene Tyacke | Gene Tyacke | ||||||
| appleugcontrol | 2336 | udp | Apple UG Control | Gene Tyacke | Gene Tyacke | ||||||
| redstorm-join | 2346 | tcp | Game Connection Port IANA assigned this well-formed service name as a replacement for "redstorm_join". |
||||||||
| redstorm_join | 2346 | tcp | Game Connection Port | This entry is an alias to "redstorm-join". This entry is now historic, not usable for use with many common service discovery mechanisms. | |||||||
| redstorm-join | 2346 | udp | Game Connection Port IANA assigned this well-formed service name as a replacement for "redstorm_join". |
||||||||
| redstorm_join | 2346 | udp | Game Connection Port | This entry is an alias to "redstorm-join". This entry is now historic, not usable for use with many common service discovery mechanisms. | |||||||
| gxtelmd | 2356 | tcp | GXT License Managemant | Robert Hodgson | Robert Hodgson | ||||||
| gxtelmd | 2356 | udp | GXT License Managemant | Robert Hodgson | Robert Hodgson | ||||||
| nexstorindltd | 2360 | tcp | NexstorIndLtd | NexStor India Limited | NexStor India Limited | ||||||
| nexstorindltd | 2360 | udp | NexstorIndLtd | NexStor India Limited | NexStor India Limited | ||||||
| tl1 | 2361 | tcp | TL1 | Charles Scott Roberson | Charles Scott Roberson | ||||||
| tl1 | 2361 | udp | TL1 | Charles Scott Roberson | Charles Scott Roberson | ||||||
| digiman | 2362 | tcp | digiman | Aaron S. Kurland | Aaron S. Kurland | ||||||
| digiman | 2362 | udp | digiman | Aaron S. Kurland | Aaron S. Kurland | ||||||
| mediacntrlnfsd | 2363 | tcp | Media Central NFSD | Shivakumar S. Govindarajapuram | Shivakumar S. Govindarajapuram | ||||||
| mediacntrlnfsd | 2363 | udp | Media Central NFSD | Shivakumar S. Govindarajapuram | Shivakumar S. Govindarajapuram | ||||||
| oi-2000 | 2364 | tcp | OI-2000 | Software Horizons Inc. | Software Horizons Inc. | ||||||
| oi-2000 | 2364 | udp | OI-2000 | Software Horizons Inc. | Software Horizons Inc. | ||||||
| dbref | 2365 | tcp | dbref | Yoshihiro Yamazaki | Yoshihiro Yamazaki | ||||||
| dbref | 2365 | udp | dbref | Yoshihiro Yamazaki | Yoshihiro Yamazaki | ||||||
| qip-login | 2366 | tcp | qip-login | Mike Morgan | Mike Morgan | ||||||
| qip-login | 2366 | udp | qip-login | Mike Morgan | Mike Morgan | ||||||
| service-ctrl | 2367 | tcp | Service Control | Humberto Sanchez | Humberto Sanchez | ||||||
| service-ctrl | 2367 | udp | Service Control | Humberto Sanchez | Humberto Sanchez | ||||||
| opentable | 2368 | tcp | OpenTable | Brett Goldstein | Brett Goldstein | ||||||
| opentable | 2368 | udp | OpenTable | Brett Goldstein | Brett Goldstein | ||||||
| bif-p2p | 2369 | tcp | Blockchain Identifier InFrastructure P2P | Li Zhiping | Zhang Bo | 2023-06-29 | |||||
| bif-p2p | 2369 | udp | Blockchain Identifier InFrastructure P2P | Li Zhiping | Zhang Bo | 2023-03-06 | |||||
| docker-s | 2376 | tcp | Docker REST API (ssl) | DOCKER | Christopher Liljenstolpe | 2014-04-17 | |||||
| virtualtape | 2386 | tcp | Virtual Tape | ||||||||
| virtualtape | 2386 | udp | Virtual Tape | ||||||||
| wusage | 2396 | tcp | Wusage | Thomas Boutell | Thomas Boutell | ||||||
| wusage | 2396 | udp | Wusage | Thomas Boutell | Thomas Boutell | ||||||
| iec-104 | 2404 | tcp | IEC 60870-5-104 process control over IP | Walter K. Eichelburg | Walter K. Eichelburg | ||||||
| iec-104 | 2404 | udp | IEC 60870-5-104 process control over IP | Walter K. Eichelburg | Walter K. Eichelburg | ||||||
| jediserver | 2406 | tcp | JediServer | Paul McEntire | Paul McEntire | ||||||
| jediserver | 2406 | udp | JediServer | Paul McEntire | Paul McEntire | ||||||
| rmtserver | 2416 | tcp | RMT Server | Yvon Marineau | Yvon Marineau | ||||||
| rmtserver | 2416 | udp | RMT Server | Yvon Marineau | Yvon Marineau | ||||||
| vcmp | 2426 | tcp | VeloCloud MultiPath Protocol | VeloCloud Networks | Tim Van Herck | 2014-11-13 | This port was previously removed on 2002-04-29. | ||||
| vcmp | 2426 | udp | VeloCloud MultiPath Protocol | VeloCloud Networks | Tim Van Herck | 2014-11-13 | This port was previously removed on 2002-04-29. | ||||
| topx | 2436 | tcp | TOP/X | Dragos Pop | Dragos Pop | ||||||
| topx | 2436 | udp | TOP/X | Dragos Pop | Dragos Pop | ||||||
| bues-service | 2446 | tcp | bues_service IANA assigned this well-formed service name as a replacement for "bues_service". |
Leonhard Diekmann | Leonhard Diekmann | ||||||
| bues_service | 2446 | tcp | bues_service | Leonhard Diekmann | Leonhard Diekmann | This entry is an alias to "bues-service". This entry is now historic, not usable for use with many common service discovery mechanisms. | |||||
| bues-service | 2446 | udp | bues_service IANA assigned this well-formed service name as a replacement for "bues_service". |
Leonhard Diekmann | Leonhard Diekmann | ||||||
| bues_service | 2446 | udp | bues_service | Leonhard Diekmann | Leonhard Diekmann | This entry is an alias to "bues-service". This entry is now historic, not usable for use with many common service discovery mechanisms. | |||||
| altav-remmgt | 2456 | tcp | altav-remmgt | Gary M. Allen | Gary M. Allen | ||||||
| altav-remmgt | 2456 | udp | altav-remmgt | Gary M. Allen | Gary M. Allen | ||||||
| ms-theater | 2460 | tcp | ms-theater | Anton Kucer | Anton Kucer | ||||||
| ms-theater | 2460 | udp | ms-theater | Anton Kucer | Anton Kucer | ||||||
| qadmifoper | 2461 | tcp | qadmifoper | ||||||||
| qadmifoper | 2461 | udp | qadmifoper | ||||||||
| qadmifevent | 2462 | tcp | qadmifevent | Pekka Takaranta | Pekka Takaranta | ||||||
| qadmifevent | 2462 | udp | qadmifevent | Pekka Takaranta | Pekka Takaranta | ||||||
| lsi-raid-mgmt | 2463 | tcp | LSI RAID Management | NetApp, Inc. | MSW architecture team | 2014-07-18 | |||||
| lsi-raid-mgmt | 2463 | udp | LSI RAID Management | NetApp, Inc. | MSW architecture team | 2014-07-18 | |||||
| direcpc-si | 2464 | tcp | DirecPC SI | Doug Dillon | Doug Dillon | ||||||
| direcpc-si | 2464 | udp | DirecPC SI | Doug Dillon | Doug Dillon | ||||||
| lbm | 2465 | tcp | Load Balance Management | ||||||||
| lbm | 2465 | udp | Load Balance Management | ||||||||
| lbf | 2466 | tcp | Load Balance Forwarding | Kazuhiro Koide | Kazuhiro Koide | ||||||
| lbf | 2466 | udp | Load Balance Forwarding | Kazuhiro Koide | Kazuhiro Koide | ||||||
| high-criteria | 2467 | tcp | High Criteria | Konstantin Iavid | Konstantin Iavid | ||||||
| high-criteria | 2467 | udp | High Criteria | Konstantin Iavid | Konstantin Iavid | ||||||
| qip-msgd | 2468 | tcp | qip_msgd | Mike Morgan | Mike Morgan | ||||||
| qip-msgd | 2468 | udp | qip_msgd | Mike Morgan | Mike Morgan | ||||||
| mti-tcs-comm | 2469 | tcp | MTI-TCS-COMM | Mario Bonin | Mario Bonin | ||||||
| mti-tcs-comm | 2469 | udp | MTI-TCS-COMM | Mario Bonin | Mario Bonin | ||||||
| ace-svr-prop | 2476 | tcp | ACE Server Propagation | ||||||||
| ace-svr-prop | 2476 | udp | ACE Server Propagation | ||||||||
| netobjects2 | 2486 | tcp | Net Objects2 | Francois Granade | Francois Granade | ||||||
| netobjects2 | 2486 | udp | Net Objects2 | Francois Granade | Francois Granade | ||||||
| dirgis | 2496 | tcp | DIRGIS | Deutschland Informations und Reservierungsgesellschaft mbH | Deutschland Informations und Reservierungsgesellschaft mbH | ||||||
| dirgis | 2496 | udp | DIRGIS | Deutschland Informations und Reservierungsgesellschaft mbH | Deutschland Informations und Reservierungsgesellschaft mbH | ||||||
| jbroker | 2506 | tcp | jbroker | Rohit Garg | Rohit Garg | ||||||
| jbroker | 2506 | udp | jbroker | Rohit Garg | Rohit Garg | ||||||
| maincontrol | 2516 | tcp | Main Control | Nathan Sadia | Nathan Sadia | ||||||
| maincontrol | 2516 | udp | Main Control | Nathan Sadia | Nathan Sadia | ||||||
| ema-sent-lm | 2526 | tcp | EMA License Manager | Thaddeus Perala | Thaddeus Perala | ||||||
| ema-sent-lm | 2526 | udp | EMA License Manager | Thaddeus Perala | Thaddeus Perala | ||||||
| btpp2audctr1 | 2536 | tcp | btpp2audctr1 | Ian Daniels | Ian Daniels | ||||||
| btpp2audctr1 | 2536 | udp | btpp2audctr1 | Ian Daniels | Ian Daniels | ||||||
| vytalvaultbrtp | 2546 | tcp | vytalvaultbrtp | ||||||||
| vytalvaultbrtp | 2546 | udp | vytalvaultbrtp |
Contact Information
| Name | Organization | Contact URI | Last Updated |
|---|---|---|---|
| Aaron S. Kurland | akurland&netsilicon.com | ||
| Anton Kucer | akucerµsoft.com | ||
| Brett Goldstein | bgoldstein&opentable.com | ||
| Charles Scott Roberson | chip&cerent.com | ||
| Christopher Liljenstolpe | iana&cdl.asgaard.org | 2014-04-17 | |
| David Thompson | theta&theta-ent.com | ||
| Deutschland Informations und Reservierungsgesellschaft mbH | beratung&dirg.de | ||
| DOCKER | iana&cdl.asgaard.org | 2014-04-17 | |
| Doug Dillon | dillon&hns.com | ||
| Dragos Pop | dragos&cs.ubbcluj.ro | ||
| Francois Granade | francois&netobjects.com | ||
| Gary M. Allen | gallen&symantec.com | ||
| Gene Tyacke | gene&apple.com | ||
| Humberto Sanchez | Humberto_Sanchez&hp.com | ||
| IESG | iesg&ietf.org | ||
| IETF Chair | IETF | chair&ietf.org | |
| Ian Daniels | btexact.ports&bt.com | ||
| Karl Norrman | karl.norrman&ericsson.com | 2004-12 | |
| Kazuhiro Koide | kaz&pfu.co.jp | ||
| Keisokugiken Corp. | adda&kgc.co.jp | ||
| Konstantin Iavid | kiavid&highcriteria.com | ||
| Leonhard Diekmann | diekmann&04.mstr02.telekom400.dbp.de | ||
| Li Zhiping | CAICT | lizhiping&caict.ac.cn | 2023-06-29 |
| Mario Bonin | boninmµtempus.com | ||
| Mike Morgan | mmorgan&lucent.com | ||
| MSW architecture team | NetApp | mswarch&netapp.com | 2014-07-18 |
| Nathan Sadia | sadia&maincontrol.com | ||
| NetApp, Inc. | mswarch&netapp.com | 2014-07-18 | |
| NexStor India Limited | next&nda.vsnl.net.in | ||
| Patrick Fisher | pfisher&hns.com | 2004-12 | |
| Paul McEntire | paul.mcentire&columbiasc.ncr.com | ||
| Pekka Takaranta | pekka.takaranta&tellabs.fi | ||
| Pisharath Krishnan | krishnan&axis-inc.com | ||
| Richard Spartz | rspartz&alliancetechnical.com | ||
| Robert Hodgson | rrh&gxt.com | ||
| Rohit Garg | rohit&objectscape.com | ||
| Shivakumar S. Govindarajapuram | shivak&eng.sun.com | ||
| Software Horizons Inc. | oi2000&shorizons.com | ||
| Steven Sawkins | ssawkins&symantec.com | ||
| Thaddeus Perala | trperala&emaden.com | ||
| Thomas Boutell | boutell&boutell.com | ||
| Tim Van Herck | VeloCloud Networks | herckt&velocloud.net | 2014-11-13 |
| VeloCloud Networks | ops&velocloud.net | 2014-11-13 | |
| Walter K. Eichelburg | walter.eichelburg&sat-automation.com | ||
| Yoshihiro Yamazaki | yamazaki&ael.fujitsu.co.jp | ||
| Yvon Marineau | yvon&simware.com | ||
| Zhang Bo | CAICT | zhangbo3&caict.ac.cn | 2023-06-29 |