Internet Assigned Numbers Authority

Service Name and Transport Protocol Port Number Registry

Last Updated
2024-11-22
Expert(s)
TCP/UDP: Joe Touch; Eliot Lear, Kumiko Ono, Wes Eddy, Brian Trammell, 
Jana Iyengar, and Michael Scharf
SCTP: Michael Tuexen
DCCP: Eddie Kohler and Yoshifumi Nishida
Reference
[RFC6335]
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 process, as
documented in [RFC6335].

Port numbers are assigned in various ways, based on three ranges: System
Ports (0-1023), User Ports (1024-49151), and the Dynamic and/or Private
Ports (49152-65535); the different uses of these ranges are described in
[RFC6335]. According to Section 8.1.2 of [RFC6335], System Ports are 
assigned by the "IETF Review" or "IESG Approval" procedures described in 
[RFC8126]. User Ports are assigned by IANA using the "IETF Review" process, 
the "IESG Approval" process, or the "Expert Review" process, as per 
[RFC6335]. Dynamic Ports are not assigned.

The registration procedures for service names and port numbers are
described in [RFC6335].

Assigned ports both System and User ports SHOULD NOT be used without
or prior to IANA registration.

************************************************************************
* PLEASE NOTE THE FOLLOWING:                                           *
*                                                                      *
* 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.                                                   *
************************************************************************

Request an Assignment
  [https://www.iana.org/protocols/apply]

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Service Name Port Number Transport Protocol Description Assignee Contact Registration Date Modification Date Reference Service Code Unauthorized Use Reported Assignment Notes
sonus 2653 tcp Sonus [Mark_Garti] [Mark_Garti]
sonus 2653 udp Sonus [Mark_Garti] [Mark_Garti]
bintec-tapi 2663 tcp BinTec-TAPI
bintec-tapi 2663 udp BinTec-TAPI
firstcall42 2673 tcp First Call 42 [Luke_Bowen] [Luke_Bowen]
firstcall42 2673 udp First Call 42 [Luke_Bowen] [Luke_Bowen]
ncdloadbalance 2683 tcp NCDLoadBalance [Tim_Stevenson] [Tim_Stevenson]
ncdloadbalance 2683 udp NCDLoadBalance [Tim_Stevenson] [Tim_Stevenson]
2693 tcp Unassigned (Removed 2004-2-6)
2693 udp Unassigned (Removed 2004-2-6)
sms-chat 2703 tcp SMS CHAT
sms-chat 2703 udp SMS CHAT
raventbs 2713 tcp Raven Trinity Broker Service
raventbs 2713 udp Raven Trinity Broker Service
watchdog-nt 2723 tcp WatchDog NT Protocol [Loftware] [Glen_Sansoucie] 2020-07-20
watchdog-nt 2723 udp WatchDog NT Protocol [Loftware] [Glen_Sansoucie] 2020-07-20
nec-raidplus 2730 tcp NEC RaidPlus [Yusuke_Asai] [Yusuke_Asai]
nec-raidplus 2730 udp NEC RaidPlus [Yusuke_Asai] [Yusuke_Asai]
fyre-messanger 2731 tcp Fyre Messanger [Robert_Waters] [Robert_Waters]
fyre-messanger 2731 udp Fyre Messanger [Robert_Waters] [Robert_Waters]
g5m 2732 tcp G5M [Graham_Klyne] [Graham_Klyne]
g5m 2732 udp G5M [Graham_Klyne] [Graham_Klyne]
signet-ctf 2733 tcp Signet CTF [Greg_Broiles] [Greg_Broiles]
signet-ctf 2733 udp Signet CTF [Greg_Broiles] [Greg_Broiles]
ccs-software 2734 tcp CCS Software [Bertus_Jacobs] [Bertus_Jacobs]
ccs-software 2734 udp CCS Software [Bertus_Jacobs] [Bertus_Jacobs]
netiq-mc 2735 tcp NetIQ Monitor Console [Scott_Southard] [Scott_Southard] 2010-08-25
netiq-mc 2735 udp NetIQ Monitor Console [Scott_Southard] [Scott_Southard] 2010-08-25
radwiz-nms-srv 2736 tcp RADWIZ NMS SRV [Israel_Shainert] [Israel_Shainert]
radwiz-nms-srv 2736 udp RADWIZ NMS SRV [Israel_Shainert] [Israel_Shainert]
srp-feedback 2737 tcp SRP Feedback [Werner_Almesberger] [Werner_Almesberger]
srp-feedback 2737 udp SRP Feedback [Werner_Almesberger] [Werner_Almesberger]
ndl-tcp-ois-gw 2738 tcp NDL TCP-OSI Gateway [Martin_Norman] [Martin_Norman]
ndl-tcp-ois-gw 2738 udp NDL TCP-OSI Gateway [Martin_Norman] [Martin_Norman]
tn-timing 2739 tcp TN Timing [Paul_Roberts] [Paul_Roberts]
tn-timing 2739 udp TN Timing [Paul_Roberts] [Paul_Roberts]
murx 2743 tcp murx [Thomas_Kuiper] [Thomas_Kuiper]
murx 2743 udp murx [Thomas_Kuiper] [Thomas_Kuiper]
de-spot 2753 tcp de-spot [Sanjay_Parekh] [Sanjay_Parekh]
de-spot 2753 udp de-spot [Sanjay_Parekh] [Sanjay_Parekh]
desktop-dna 2763 tcp Desktop DNA [Jon_Walker] [Jon_Walker]
desktop-dna 2763 udp Desktop DNA [Jon_Walker] [Jon_Walker]
rbakcup1 2773 tcp RBackup Remote Backup
rbakcup1 2773 udp RBackup Remote Backup
aises 2783 tcp AISES [Daniel_Grazioli] [Daniel_Grazioli]
aises 2783 udp AISES [Daniel_Grazioli] [Daniel_Grazioli]
initlsmsad 2793 tcp initlsmsad [Kelly_Green] [Kelly_Green]
initlsmsad 2793 udp initlsmsad [Kelly_Green] [Kelly_Green]
btprjctrl 2803 tcp btprjctrl [Huw_Thomas] [Huw_Thomas]
btprjctrl 2803 udp btprjctrl [Huw_Thomas] [Huw_Thomas]
llm-pass 2813 tcp llm-pass [Loftware] [Glen_Sansoucie] 2020-07-20
llm-pass 2813 udp llm-pass [Loftware] [Glen_Sansoucie] 2020-07-20
cqg-netlan 2823 tcp CQG Net/LAN
cqg-netlan 2823 udp CQG Net/LAN
silkp2 2830 tcp silkp2
silkp2 2830 udp silkp2
silkp3 2831 tcp silkp3
silkp3 2831 udp silkp3
silkp4 2832 tcp silkp4 [Erik_Skyten] [Erik_Skyten]
silkp4 2832 udp silkp4 [Erik_Skyten] [Erik_Skyten]
glishd 2833 tcp glishd [Darrell_Schiebel] [Darrell_Schiebel]
glishd 2833 udp glishd [Darrell_Schiebel] [Darrell_Schiebel]
evtp 2834 tcp EVTP
evtp 2834 udp EVTP
evtp-data 2835 tcp EVTP-DATA [Eric_Bruno] [Eric_Bruno]
evtp-data 2835 udp EVTP-DATA [Eric_Bruno] [Eric_Bruno]
catalyst 2836 tcp catalyst [Garret_Tollkuhn] [Garret_Tollkuhn]
catalyst 2836 udp catalyst [Garret_Tollkuhn] [Garret_Tollkuhn]
repliweb 2837 tcp Repliweb [William_Orme] [William_Orme]
repliweb 2837 udp Repliweb [William_Orme] [William_Orme]
starbot 2838 tcp Starbot [Markus_Sabadello_2] [Markus_Sabadello_2]
starbot 2838 udp Starbot [Markus_Sabadello_2] [Markus_Sabadello_2]
nmsigport 2839 tcp NMSigPort [Peter_Egli_2] [Peter_Egli_2]
nmsigport 2839 udp NMSigPort [Peter_Egli_2] [Peter_Egli_2]
l3-exprt 2840 tcp l3-exprt
l3-exprt 2840 udp l3-exprt
l3-ranger 2841 tcp l3-ranger
l3-ranger 2841 udp l3-ranger
l3-hawk 2842 tcp l3-hawk [Dolores_Scott_2] [Dolores_Scott_2]
l3-hawk 2842 udp l3-hawk [Dolores_Scott_2] [Dolores_Scott_2]
pdnet 2843 tcp PDnet [Torsten_Scheffler] [Torsten_Scheffler]
pdnet 2843 udp PDnet [Torsten_Scheffler] [Torsten_Scheffler]
ispipes 2853 tcp ISPipes [Rajesh_Nandyalam] [Rajesh_Nandyalam]
ispipes 2853 udp ISPipes [Rajesh_Nandyalam] [Rajesh_Nandyalam]
sonardata 2863 tcp Sonar Data [Ian_Higginbottom] [Ian_Higginbottom]
sonardata 2863 udp Sonar Data [Ian_Higginbottom] [Ian_Higginbottom]
psrt 2873 tcp PubSub Realtime Telemetry Protocol [Altertech] [Serhij_Symonenko] 2021-11-12
psrt 2873 udp PubSub Realtime Telemetry Protocol [Altertech] [Serhij_Symonenko] 2021-11-12
ndnp 2883 tcp NDNP [Khelben_Blackstaff] [Khelben_Blackstaff]
ndnp 2883 udp NDNP [Khelben_Blackstaff] [Khelben_Blackstaff]
vseconnector 2893 tcp VSECONNECTOR [Ingo_Franzki] [Ingo_Franzki]
vseconnector 2893 udp VSECONNECTOR [Ingo_Franzki] [Ingo_Franzki]
suitcase 2903 tcp SUITCASE [Milton_E_Sagen] [Milton_E_Sagen]
suitcase 2903 udp SUITCASE [Milton_E_Sagen] [Milton_E_Sagen]
m3ua 2905 tcp M3UA [Lyndon_Ong] [Lyndon_Ong] [RFC4666]
m3ua 2905 sctp M3UA [Lyndon_Ong] [Lyndon_Ong] [RFC4666]
boosterware 2913 tcp Booster Ware [Ido_Ben_David] [Ido_Ben_David]
boosterware 2913 udp Booster Ware [Ido_Ben_David] [Ido_Ben_David]
wta-wsp-wtp-s 2923 tcp WTA-WSP-WTP-S [Sebastien_Bury] [Sebastien_Bury]
wta-wsp-wtp-s 2923 udp WTA-WSP-WTP-S [Sebastien_Bury] [Sebastien_Bury]
amx-weblinx 2930 tcp AMX-WEBLINX [Mike_Morris] [Mike_Morris]

Contact Information

ID Name Organization Contact URI Last Updated
[Altertech] Altertech mailto:pr&altertech.com 2021-11-12
[Bertus_Jacobs] Bertus Jacobs mailto:bertus&ccs-software.co.za
[Daniel_Grazioli] Daniel Grazioli mailto:dgrazioli&pgaero.co.uk
[Darrell_Schiebel] Darrell Schiebel mailto:dschieb&cv.nrao.edu
[Dolores_Scott_2] Dolores Scott mailto:dolores.scott&l-3security.com
[Eric_Bruno] Eric Bruno mailto:ebruno&solution-soft.com
[Erik_Skyten] Erik Skyten mailto:eki&silknet.com
[Garret_Tollkuhn] Garret Tollkuhn mailto:garret&multiviewgroup.com
[Glen_Sansoucie] Glen Sansoucie Loftware mailto:gsansoucie&loftware.com 2020-07-20
[Graham_Klyne] Graham Klyne mailto:GK&acm.org
[Greg_Broiles] Greg Broiles mailto:greg&sac.net
[Huw_Thomas] Huw Thomas mailto:huw.thomas&bt.com
[Ian_Higginbottom] Ian Higginbottom mailto:sonardata&sonardata.com
[Ido_Ben_David] Ido Ben-David mailto:dgntcom&netvision.net.il
[Ingo_Franzki] Ingo Franzki mailto:ifranzki&de.ibm.com
[Israel_Shainert] Israel Shainert mailto:israels&209.88.177.2
[Jon_Walker] Jon Walker mailto:jwalker&miramarsys.com
[Kelly_Green] Kelly Green mailto:green&compaq.com
[Khelben_Blackstaff] Khelben Blackstaff mailto:khelben&gmx.at
[Loftware] Loftware mailto:gsansoucie&loftware.com 2020-07-20
[Luke_Bowen] Luke Bowen mailto:leb&tfn.com
[Lyndon_Ong] Lyndon Ong mailto:LyOng&ciena.com
[Mark_Garti] Mark Garti mailto:mgarti&sonusnet.com
[Markus_Sabadello_2] Markus Sabadello mailto:sabadello&starbot.org
[Martin_Norman] Martin Norman mailto:martin&ndl.co.uk
[Mike_Morris] Mike Morris mailto:mike.morris&amx.com
[Milton_E_Sagen] Milton E. Sagen mailto:msagen&extensis.com
[Paul_Roberts] Paul Roberts mailto:PaulRoberts&engineer.com
[Peter_Egli_2] Peter Egli mailto:peter.egli&mail.inalp.com
[Rajesh_Nandyalam] Rajesh Nandyalam mailto:rnandyal&emc.com
[Robert_Waters] Robert Waters mailto:bobtek&hotmail.com
[Sanjay_Parekh] Sanjay Parekh mailto:spot&digitalenvoy.net
[Scott_Southard] Scott Southard mailto:iana-ports&netiq.com 2010-08-25
[Sebastien_Bury] Sebastien Bury WAP Forum mailto:sebastien.bury&art.alcatel.fr
[Serhij_Symonenko] Serhij Symonenko Altertech mailto:div&altertech.com 2021-11-12
[Thomas_Kuiper] Thomas Kuiper mailto:tkuiper&inxsoft.net
[Tim_Stevenson] Tim Stevenson mailto:tes&ncd.com
[Torsten_Scheffler] Torsten Scheffler mailto:pdnetadmin&pdnet.info
[Werner_Almesberger] Werner Almesberger mailto:Werner.Almesberger&epfl.ch
[William_Orme] William Orme mailto:bill&repliweb.com
[Yusuke_Asai] Yusuke Asai mailto:yasai&nw1.file.fc.nec.co.jp