Service Name and Transport Protocol Port Number Registry
Last Updated
- 2026-10-15
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| distinct32 | 9998 | tcp | Distinct32 | Anoop Tewari | Anoop Tewari | ||||||
| distinct32 | 9998 | udp | Distinct32 | Anoop Tewari | Anoop Tewari | ||||||
| distinct | 9999 | tcp | distinct | Anoop Tewari | Anoop Tewari | ||||||
| distinct | 9999 | udp | distinct | Anoop Tewari | Anoop Tewari | ||||||
| swdtp-sv | 10009 | tcp | Systemwalker Desktop Patrol | Akira Ide | Akira Ide | 2006-03 | |||||
| swdtp-sv | 10009 | udp | Systemwalker Desktop Patrol | Akira Ide | Akira Ide | 2006-03 | |||||
| 10011-10019 | Unassigned | ||||||||||
| 10024-10049 | Unassigned | ||||||||||
| 10056-10079 | Unassigned | ||||||||||
| 10082-10099 | Unassigned | ||||||||||
| 10108-10109 | Unassigned | ||||||||||
| bmc-gms | 10129 | tcp | BMC General Manager Server | Dima Seliverstov | Dima Seliverstov | 2009-07-28 | |||||
| 10129 | udp | Reserved | |||||||||
| 10130-10159 | Unassigned | ||||||||||
| 10163-10199 | Unassigned | ||||||||||
| 10254-10259 | Unassigned | ||||||||||
| 10289-10320 | Unassigned | ||||||||||
| bngsync | 10439 | udp | BalanceNG session table synchronization protocol | Inlab Software GmbH | Thomas G. Obermair | 2014-05-02 | |||||
| 10439 | tcp | Reserved | |||||||||
| 10444-10499 | Unassigned | ||||||||||
| hip-nat-t | 10500 | udp | HIP NAT-Traversal | IESG | IETF Chair | 2020-08-12 | RFC 5770; RFC 9028 | ||||
| 10501-10539 | Unassigned | ||||||||||
| 10549-10630 | Unassigned | ||||||||||
| 10632-10799 | Unassigned | ||||||||||
| nbd | 10809 | tcp | Network Block Device | Wouter Verhelst | Wouter Verhelst | 2010-08-02 | 2024-04-30 | https://github.com/NetworkBlockDevice/nbd/blob/master/doc/proto.md | |||
| 10809 | udp | Reserved | |||||||||
| 10811-10859 | Unassigned | ||||||||||
| 10861-10879 | Unassigned | ||||||||||
| 10881-10932 | Unassigned | ||||||||||
| octopustentacle | 10933 | tcp | Listen port used by the Octopus Deploy Tentacle deployment agent | Octopus Deploy Pty. Ltd. | Paul Stovell | 2015-01-28 | |||||
| 10933 | udp | Reserved | |||||||||
| 10934-10989 | Unassigned | ||||||||||
| rmiaux | 10990 | tcp | Auxiliary RMI Port | Eugen Bacic | Eugen Bacic | ||||||
| rmiaux | 10990 | udp | Auxiliary RMI Port | Eugen Bacic | Eugen Bacic | ||||||
| 10991-10999 | Unassigned | ||||||||||
| 11002-11094 | Unassigned | ||||||||||
| weave | 11095 | tcp | Nest device-to-device and device-to-service application protocol | Nest Labs, Inc. | Grant Erickson | 2014-01-16 | |||||
| weave | 11095 | udp | Nest device-to-device and device-to-service application protocol | Nest Labs, Inc. | Grant Erickson | 2014-01-16 | |||||
| 11096-11102 | Unassigned | ||||||||||
| sgi-dmfmgr | 11109 | tcp | Data migration facility Manager (DMF) is a browser based interface to DMF | SGI | John Sygulla | 2013-01-07 | |||||
| 11109 | udp | Reserved | |||||||||
| 11209-11210 | Unassigned | ||||||||||
| imip | 11319 | tcp | IMIP | Len Zuvela | Len Zuvela | ||||||
| imip | 11319 | udp | IMIP | Len Zuvela | Len Zuvela | ||||||
| 11372-11429 | Unassigned | ||||||||||
| asgcypresstcps | 11489 | tcp | ASG Cypress Secure Only | David Luxford | David Luxford | 2010-07-01 | |||||
| 11489 | udp | Reserved | |||||||||
| 11490-11599 | Unassigned | ||||||||||
| 11624-11719 | Unassigned | Unauthorized Use Known on port 11711 | |||||||||
| 11752-11795 | Unassigned | ||||||||||
| lanschool | 11796 | tcp | LanSchool | Stoneware Inc. | Dana Doggett | 2012-05-18 | |||||
| lanschool-mpt | 11796 | udp | Lanschool Multipoint | Stoneware Inc. | Dana Doggett | 2012-05-18 | |||||
| 11797-11875 | Unassigned | ||||||||||
| 11878-11966 | Unassigned | ||||||||||
| sysinfo-sp | 11967 | tcp | SysInfo Service Protocol | Mike Cooper | Mike Cooper | 2003-03 | |||||
| sysinfo-sp | 11967 | udp | SysInfo Service Protocol | Mike Cooper | Mike Cooper | 2003-03 | |||||
| 11968-11970 | Unassigned | ||||||||||
| tibsd | 11971 | tcp | TiBS Service | Teradactyl LLC | Kristen Webb | 2019-05-17 | |||||
| 11971 | udp | Reserved | |||||||||
| 11972-11996 | Unassigned | ||||||||||
| wmereceiving | 11997 | sctp | WorldMailExpress | Greg Foutz | Greg Foutz | 2006-03 | |||||
| wmedistribution | 11998 | sctp | WorldMailExpress | Greg Foutz | Greg Foutz | 2006-03 | |||||
| wmereporting | 11999 | sctp | WorldMailExpress | Greg Foutz | Greg Foutz | 2006-03 | |||||
| 12009 | tcp | Reserved | |||||||||
| ghvpn | 12009 | udp | Green Hills VPN | Green Hills Software | Tom R. Zavisca | 2012-02-07 | |||||
| rets-ssl | 12109 | tcp | RETS over SSL | Jeremy Crawford | Jeremy Crawford | 2003-02 | |||||
| rets-ssl | 12109 | udp | RETS over SSL | Jeremy Crawford | Jeremy Crawford | 2003-02 | |||||
| 12169-12171 | Unassigned | ||||||||||
| 12173-12299 | Unassigned | ||||||||||
| 12866-13159 | Unassigned | ||||||||||
| 13219-13222 | Unassigned | ||||||||||
| 13225-13399 | Unassigned | ||||||||||
| 13401-13719 | Unassigned | ||||||||||
| dsmcc-session | 13819 | tcp | DSMCC Session Messages | Tim Addington | Tim Addington | ISO/IEC 13818-6 MPEG-2 DSM-CC | |||||
| dsmcc-session | 13819 | udp | DSMCC Session Messages | Tim Addington | Tim Addington | ISO/IEC 13818-6 MPEG-2 DSM-CC | |||||
| 13833-13893 | Unassigned | ||||||||||
| ucontrol | 13894 | tcp | Ultimate Control communication protocol | NEGU Soft | borja lopez urkidi | 2012-09-10 | |||||
| ucontrol | 13894 | udp | Ultimate Control communication protocol | NEGU Soft | borja lopez urkidi | 2012-09-10 | |||||
| 13895-13928 | Unassigned | ||||||||||
| dta-systems | 13929 | tcp | D-TA SYSTEMS | Alexis Bose | Alexis Bose | 2008-12-08 | |||||
| dta-systems | 13929 | udp | D-TA SYSTEMS | Alexis Bose | Alexis Bose | 2008-12-08 | |||||
| medevolve | 13930 | tcp | MedEvolve Port Requester | Jon Robertson | Jon Robertson | 2008-10-24 | |||||
| 13930 | udp | Reserved | |||||||||
| 13931-13999 | Unassigned | ||||||||||
| vrts-tdd | 14149 | tcp | Veritas Traffic Director | Sameer Deokule | Sameer Deokule | 2002-03 | |||||
| vrts-tdd | 14149 | udp | Veritas Traffic Director | Sameer Deokule | Sameer Deokule | 2002-03 | |||||
| 14155-14249 | Unassigned | ||||||||||
| 14415-14499 | Unassigned | ||||||||||
| 14501-14935 | Unassigned | ||||||||||
| hde-lcesrvr-1 | 14936 | tcp | hde-lcesrvr-1 | Horizon Digital Enterprise Inc. | Horizon Digital Enterprise Inc. | ||||||
| hde-lcesrvr-1 | 14936 | udp | hde-lcesrvr-1 | Horizon Digital Enterprise Inc. | Horizon Digital Enterprise Inc. | ||||||
| hde-lcesrvr-2 | 14937 | tcp | hde-lcesrvr-2 | Horizon Digital Enterprise Inc. | Horizon Digital Enterprise Inc. | ||||||
| hde-lcesrvr-2 | 14937 | udp | hde-lcesrvr-2 | Horizon Digital Enterprise Inc. | Horizon Digital Enterprise Inc. | ||||||
| 14938-14999 | Unassigned | ||||||||||
| 15119-15344 | Unassigned | ||||||||||
| 15556-15659 | Unassigned | ||||||||||
| 15661-15739 | Unassigned | ||||||||||
| 15741-15997 | Unassigned | ||||||||||
| 15998 | tcp | Reserved | |||||||||
| 2ping | 15998 | udp | 2ping Bi-Directional Ping Service | Ryan Finnie | Ryan Finnie | 2010-10-06 | |||||
| programmar | 15999 | tcp | ProGrammar Enterprise | Norman Wilson | Norman Wilson | 2010-10-06 |
Contact Information
| Name | Organization | Contact URI | Last Updated |
|---|---|---|---|
| Akira Ide | ide.akira&jp.fujitsu.com | 2006-09 | |
| Alexis Bose | abose&d-ta.com | 2008-12-08 | |
| Anoop Tewari | anoop&next.distinct.com | ||
| borja lopez urkidi | NEGU Soft | lopezurkidi&gmail.com | 2012-09-10 |
| Dana Doggett | Stoneware Inc. | dana.doggett&stone-ware.com | 2012-05-18 |
| David Luxford | david.luxford&asg.com | 2010-07-01 | |
| Dima Seliverstov | Dima_Seliverstov&bmc.com | 2009-07-28 | |
| Eugen Bacic | eugen&texar.com | ||
| Grant Erickson | Nest Labs, Inc. | grant&nestlabs.com | 2014-01-16 |
| Green Hills Software | iana-contact&ghs.com | 2012-02-07 | |
| Greg Foutz | gregf&adminovation.com | 2006-03 | |
| Horizon Digital Enterprise Inc. | info&hde.co.jp | ||
| IESG | iesg&ietf.org | ||
| IETF Chair | IETF | chair&ietf.org | |
| Inlab Software GmbH | info&inlab.de | 2014-05-02 | |
| Jeremy Crawford | jeremy&reso.org | 2015-09-07 | |
| John Sygulla | SGI | jsygulla&sgi.com | 2013-01-07 |
| Jon Robertson | jmrobertson&medevolve.com | 2008-10-24 | |
| Kristen Webb | kwebb&teradactyl.com | 2019-05-17 | |
| Len Zuvela | IM Unified Coalition | imu-comments&egroups.com | |
| Mike Cooper | mcooper&magnicomp.com | 2003-03 | |
| NEGU Soft | info&negusoft.com | 2012-09-10 | |
| Nest Labs, Inc. | grant&nestlabs.com | 2014-01-16 | |
| Norman Wilson | nwilson&programmar.com | 2010-10-06 | |
| Octopus Deploy Pty. Ltd. | paul&octopusdeploy.com | 2015-01-28 | |
| Paul Stovell | Octopus Deploy Pty. Ltd. | paul&octopusdeploy.com | 2015-01-28 |
| Ryan Finnie | ryan&finnie.org | 2010-10-06 | |
| SGI | jsygulla&sgi.com | 2013-01-07 | |
| Sameer Deokule | sameer.deokule&veritas.com | 2002-03 | |
| Stoneware Inc. | coby.gurr&stone-ware.com | 2012-05-18 | |
| Teradactyl LLC | vendors&teradactyl.com | 2019-05-17 | |
| Thomas G. Obermair | Inlab Software GmbH | thomas.obermair&inlab.de | 2014-05-02 |
| Tim Addington | Tim.Addington&sciatl.com | ||
| Tom R. Zavisca | Green Hills Software | iana-contact&ghs.com | 2012-02-07 |
| Wouter Verhelst | w&uter.be | 2010-08-02 |