Service Name and Transport Protocol Port Number Registry
Last Updated
- 2026-10-13
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| netclip | 2971 | udp | NetClip clipboard daemon | Rudi Chiarito | Rudi Chiarito | ||||||
| pmsm-webrctl | 2972 | tcp | PMSM Webrctl | Markus Michels | Markus Michels | ||||||
| pmsm-webrctl | 2972 | udp | PMSM Webrctl | Markus Michels | Markus Michels | ||||||
| svnetworks | 2973 | tcp | SV Networks | Sylvia Siu | Sylvia Siu | ||||||
| svnetworks | 2973 | udp | SV Networks | Sylvia Siu | Sylvia Siu | ||||||
| signal | 2974 | tcp | Signal | Wyatt Williams | Wyatt Williams | ||||||
| signal | 2974 | udp | Signal | Wyatt Williams | Wyatt Williams | ||||||
| fjmpcm | 2975 | tcp | Fujitsu Configuration Management Service | Hiroki Kawano | Hiroki Kawano | ||||||
| fjmpcm | 2975 | udp | Fujitsu Configuration Management Service | Hiroki Kawano | Hiroki Kawano | ||||||
| cns-srv-port | 2976 | tcp | CNS Server Port | Ram Golla | Ram Golla | ||||||
| cns-srv-port | 2976 | udp | CNS Server Port | Ram Golla | Ram Golla | ||||||
| ttc-etap-ns | 2977 | tcp | TTCs Enterprise Test Access Protocol - NS | ||||||||
| ttc-etap-ns | 2977 | udp | TTCs Enterprise Test Access Protocol - NS | ||||||||
| ttc-etap-ds | 2978 | tcp | TTCs Enterprise Test Access Protocol - DS | Daniel Becker | Daniel Becker | ||||||
| ttc-etap-ds | 2978 | udp | TTCs Enterprise Test Access Protocol - DS | Daniel Becker | Daniel Becker | ||||||
| h263-video | 2979 | tcp | H.263 Video Streaming | Jauvane C. de Oliveira | Jauvane C. de Oliveira | ||||||
| h263-video | 2979 | udp | H.263 Video Streaming | Jauvane C. de Oliveira | Jauvane C. de Oliveira | ||||||
| wimd | 2980 | tcp | Instant Messaging Service | Kevin Birch | Kevin Birch | ||||||
| wimd | 2980 | udp | Instant Messaging Service | Kevin Birch | Kevin Birch | ||||||
| mylxamport | 2981 | tcp | MYLXAMPORT | Wei Gao | Wei Gao | ||||||
| mylxamport | 2981 | udp | MYLXAMPORT | Wei Gao | Wei Gao | ||||||
| iwb-whiteboard | 2982 | tcp | IWB-WHITEBOARD | David W. Radcliffe | David W. Radcliffe | ||||||
| iwb-whiteboard | 2982 | udp | IWB-WHITEBOARD | David W. Radcliffe | David W. Radcliffe | ||||||
| netplan | 2983 | tcp | NETPLAN | Thomas Driemeyer | Thomas Driemeyer | ||||||
| netplan | 2983 | udp | NETPLAN | Thomas Driemeyer | Thomas Driemeyer | ||||||
| hpidsadmin | 2984 | tcp | HPIDSADMIN | ||||||||
| hpidsadmin | 2984 | udp | HPIDSADMIN | ||||||||
| hpidsagent | 2985 | tcp | HPIDSAGENT | John Trudeau | John Trudeau | ||||||
| hpidsagent | 2985 | udp | HPIDSAGENT | John Trudeau | John Trudeau | ||||||
| stonefalls | 2986 | tcp | STONEFALLS | Scott Grau | Scott Grau | ||||||
| stonefalls | 2986 | udp | STONEFALLS | Scott Grau | Scott Grau | ||||||
| identify | 2987 | tcp | identify | ||||||||
| identify | 2987 | udp | identify | ||||||||
| hippad | 2988 | tcp | HIPPA Reporting Protocol | William Randolph Royere III | William Randolph Royere III | ||||||
| hippad | 2988 | udp | HIPPA Reporting Protocol | William Randolph Royere III | William Randolph Royere III | ||||||
| zarkov | 2989 | tcp | ZARKOV Intelligent Agent Communication | Robin Felix | Robin Felix | 2014-02-17 | |||||
| zarkov | 2989 | udp | ZARKOV Intelligent Agent Communication | Robin Felix | Robin Felix | 2014-02-17 | |||||
| boscap | 2990 | tcp | BOSCAP | Dirk Hillbrecht | Dirk Hillbrecht | ||||||
| boscap | 2990 | udp | BOSCAP | Dirk Hillbrecht | Dirk Hillbrecht | ||||||
| wkstn-mon | 2991 | tcp | WKSTN-MON | William David | William David | ||||||
| wkstn-mon | 2991 | udp | WKSTN-MON | William David | William David | ||||||
| avenyo | 2992 | tcp | Avenyo Server | Bodo Rueskamp | Bodo Rueskamp | ||||||
| avenyo | 2992 | udp | Avenyo Server | Bodo Rueskamp | Bodo Rueskamp | ||||||
| veritas-vis1 | 2993 | tcp | VERITAS VIS1 | ||||||||
| veritas-vis1 | 2993 | udp | VERITAS VIS1 | ||||||||
| veritas-vis2 | 2994 | tcp | VERITAS VIS2 | Dinkar Chivaluri | Dinkar Chivaluri | ||||||
| veritas-vis2 | 2994 | udp | VERITAS VIS2 | Dinkar Chivaluri | Dinkar Chivaluri | ||||||
| idrs | 2995 | tcp | IDRS | Jeff Eaton | Jeff Eaton | ||||||
| idrs | 2995 | udp | IDRS | Jeff Eaton | Jeff Eaton | ||||||
| vsixml | 2996 | tcp | vsixml | Rob Juergens | Rob Juergens | ||||||
| vsixml | 2996 | udp | vsixml | Rob Juergens | Rob Juergens | ||||||
| rebol | 2997 | tcp | REBOL | Holger Kruse | Holger Kruse | ||||||
| rebol | 2997 | udp | REBOL | Holger Kruse | Holger Kruse | ||||||
| realsecure | 2998 | tcp | Real Secure | Wes Wilson | Wes Wilson | ||||||
| realsecure | 2998 | udp | Real Secure | Wes Wilson | Wes Wilson | ||||||
| remoteware-un | 2999 | tcp | RemoteWare Unassigned | Tim Farley | Tim Farley | ||||||
| remoteware-un | 2999 | udp | RemoteWare Unassigned | Tim Farley | Tim Farley | ||||||
| hbci | 3000 | tcp | HBCI | Kurt Haubner | Kurt Haubner | ||||||
| hbci | 3000 | udp | HBCI | Kurt Haubner | Kurt Haubner | ||||||
| remoteware-cl | 3000 | tcp | RemoteWare Client | Tim Farley | Tim Farley | This entry records an unassigned but widespread use | |||||
| remoteware-cl | 3000 | udp | RemoteWare Client | Tim Farley | Tim Farley | This entry records an unassigned but widespread use | |||||
| origo-native | 3001 | tcp | OrigoDB Server Native Interface | Devrex Labs | Robert Friberg | 2013-03-29 | port 3001 previously "Removed on 2006-05-25" | ||||
| 3001 | udp | Reserved | 2013-03-29 | port 3001 previously "Removed on 2006-05-25" | |||||||
| exlm-agent | 3002 | tcp | EXLM Agent | Randy Martin | Randy Martin | ||||||
| exlm-agent | 3002 | udp | EXLM Agent | Randy Martin | Randy Martin | ||||||
| remoteware-srv | 3002 | tcp | RemoteWare Server | Tim Farley | Tim Farley | This entry records an unassigned but widespread use | |||||
| remoteware-srv | 3002 | udp | RemoteWare Server | Tim Farley | Tim Farley | This entry records an unassigned but widespread use | |||||
| cgms | 3003 | tcp | CGMS | Corey Clinton | Corey Clinton | 2011-02-02 | |||||
| cgms | 3003 | udp | CGMS | Corey Clinton | Corey Clinton | 2011-02-02 | |||||
| csoftragent | 3004 | tcp | Csoft Agent | Nedelcho Stanev | Nedelcho Stanev | ||||||
| csoftragent | 3004 | udp | Csoft Agent | Nedelcho Stanev | Nedelcho Stanev | ||||||
| geniuslm | 3005 | tcp | Genius License Manager | Jakob Spies | Jakob Spies | ||||||
| geniuslm | 3005 | udp | Genius License Manager | Jakob Spies | Jakob Spies | ||||||
| ii-admin | 3006 | tcp | Instant Internet Admin | PerfTech, Inc. | Lewis Donzis | 2019-12-19 | |||||
| ii-admin | 3006 | udp | Instant Internet Admin | PerfTech, Inc. | Lewis Donzis | 2019-12-19 | |||||
| lotusmtap | 3007 | tcp | Lotus Mail Tracking Agent Protocol | Ken Lin | Ken Lin | ||||||
| lotusmtap | 3007 | udp | Lotus Mail Tracking Agent Protocol | Ken Lin | Ken Lin | ||||||
| midnight-tech | 3008 | tcp | Midnight Technologies | Kyle Unice | Kyle Unice | ||||||
| midnight-tech | 3008 | udp | Midnight Technologies | Kyle Unice | Kyle Unice | ||||||
| pxc-ntfy | 3009 | tcp | PXC-NTFY | Takeshi Nishizawa | Takeshi Nishizawa | ||||||
| pxc-ntfy | 3009 | udp | PXC-NTFY | Takeshi Nishizawa | Takeshi Nishizawa | ||||||
| gw | 3010 | tcp | Telerate Workstation | ||||||||
| ping-pong | 3010 | udp | Telerate Workstation | Timo Sivonen | Timo Sivonen | ||||||
| trusted-web | 3011 | tcp | Trusted Web | ||||||||
| trusted-web | 3011 | udp | Trusted Web | ||||||||
| twsdss | 3012 | tcp | Trusted Web Client | Alex Duncan | Alex Duncan | ||||||
| twsdss | 3012 | udp | Trusted Web Client | Alex Duncan | Alex Duncan | ||||||
| gilatskysurfer | 3013 | tcp | Gilat Sky Surfer | Yossi Gal | Yossi Gal | ||||||
| gilatskysurfer | 3013 | udp | Gilat Sky Surfer | Yossi Gal | Yossi Gal | ||||||
| broker-service | 3014 | tcp | Broker Service IANA assigned this well-formed service name as a replacement for "broker_service". |
Dale Bethers | Dale Bethers | ||||||
| broker_service | 3014 | tcp | Broker Service | Dale Bethers | Dale Bethers | This entry is an alias to "broker-service". This entry is now historic, not usable for use with many common service discovery mechanisms. | |||||
| broker-service | 3014 | udp | Broker Service IANA assigned this well-formed service name as a replacement for "broker_service". |
Dale Bethers | Dale Bethers | ||||||
| broker_service | 3014 | udp | Broker Service | Dale Bethers | Dale Bethers | This entry is an alias to "broker-service". This entry is now historic, not usable for use with many common service discovery mechanisms. | |||||
| nati-dstp | 3015 | tcp | NATI DSTP | Paul Austin | Paul Austin | ||||||
| nati-dstp | 3015 | udp | NATI DSTP | Paul Austin | Paul Austin | ||||||
| notify-srvr | 3016 | tcp | Notify Server IANA assigned this well-formed service name as a replacement for "notify_srvr". |
Hugo Parra | Hugo Parra | ||||||
| notify_srvr | 3016 | tcp | Notify Server | Hugo Parra | Hugo Parra | This entry is an alias to "notify-srvr". This entry is now historic, not usable for use with many common service discovery mechanisms. | |||||
| notify-srvr | 3016 | udp | Notify Server IANA assigned this well-formed service name as a replacement for "notify_srvr". |
Hugo Parra | Hugo Parra | ||||||
| notify_srvr | 3016 | udp | Notify Server | Hugo Parra | Hugo Parra | This entry is an alias to "notify-srvr". This entry is now historic, not usable for use with many common service discovery mechanisms. | |||||
| event-listener | 3017 | tcp | Event Listener IANA assigned this well-formed service name as a replacement for "event_listener". |
Ted Tronson | Ted Tronson | ||||||
| event_listener | 3017 | tcp | Event Listener | Ted Tronson | Ted Tronson | This entry is an alias to "event-listener". This entry is now historic, not usable for use with many common service discovery mechanisms. |