Internet Assigned Numbers Authority

Service Name and Transport Protocol Port Number Registry

Last Updated
2024-03-18
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
wibukey 22347 tcp WibuKey Standard WkLan [Wolfgang_Voelker] [Wolfgang_Voelker] 2007-06
wibukey 22347 udp WibuKey Standard WkLan [Wolfgang_Voelker] [Wolfgang_Voelker] 2007-06
22348-22349 Unassigned
codemeter 22350 tcp CodeMeter Standard [Wolfgang_Voelker] [Wolfgang_Voelker] 2007-06
codemeter 22350 udp CodeMeter Standard [Wolfgang_Voelker] [Wolfgang_Voelker] 2007-06
codemeter-cmwan 22351 tcp TPC/IP requests of copy protection software to a server [WIBU-SYSTEMS_AG] [Wolfgang_Völker_2] 2013-06-25
22351 udp Reserved
22352-22536 Unassigned
inovaport1 23000 tcp Inova LightLink Server Type 1 [Chris_Koeritz_3] [Chris_Koeritz_3] 2006-10
inovaport1 23000 udp Inova LightLink Server Type 1 [Chris_Koeritz_3] [Chris_Koeritz_3] 2006-10
inovaport2 23001 tcp Inova LightLink Server Type 2 [Chris_Koeritz_3] [Chris_Koeritz_3] 2006-10
inovaport2 23001 udp Inova LightLink Server Type 2 [Chris_Koeritz_3] [Chris_Koeritz_3] 2006-10
inovaport3 23002 tcp Inova LightLink Server Type 3 [Chris_Koeritz_3] [Chris_Koeritz_3] 2006-10
inovaport3 23002 udp Inova LightLink Server Type 3 [Chris_Koeritz_3] [Chris_Koeritz_3] 2006-10
inovaport4 23003 tcp Inova LightLink Server Type 4 [Chris_Koeritz_3] [Chris_Koeritz_3] 2006-10
inovaport4 23003 udp Inova LightLink Server Type 4 [Chris_Koeritz_3] [Chris_Koeritz_3] 2006-10
inovaport5 23004 tcp Inova LightLink Server Type 5 [Chris_Koeritz_3] [Chris_Koeritz_3] 2006-10
inovaport5 23004 udp Inova LightLink Server Type 5 [Chris_Koeritz_3] [Chris_Koeritz_3] 2006-10
inovaport6 23005 tcp Inova LightLink Server Type 6 [Chris_Koeritz_3] [Chris_Koeritz_3] 2006-10
inovaport6 23005 udp Inova LightLink Server Type 6 [Chris_Koeritz_3] [Chris_Koeritz_3] 2006-10
23006-23052 Unassigned
gntp 23053 tcp Generic Notification Transport Protocol [Growl_Project] [Chris_Forsythe] 2012-02-07
23053 udp Reserved
23054-23271 Unassigned
23272 tcp Reserved
s102 23272 udp S102 application [Kimmo_Kymalainen] [Kimmo_Kymalainen] 2009-08-26
23273-23293 Unassigned
5afe-dir 23294 tcp 5AFE SDN Directory [Ayoda_GmbH] [Laurenz_Eschwey] 2016-04-01
5afe-disc 23294 udp 5AFE SDN Directory discovery [Ayoda_GmbH] [Laurenz_Eschwey] 2016-04-01
23295-23332 Unassigned
elxmgmt 23333 tcp Emulex HBAnyware Remote Management [Maziar_Tamadon] [Maziar_Tamadon] 2007-11-06
elxmgmt 23333 udp Emulex HBAnyware Remote Management [Maziar_Tamadon] [Maziar_Tamadon] 2007-11-06
23334-23399 Unassigned
novar-dbase 23400 tcp Novar Data [Keith_Kilroy] [Keith_Kilroy] 2006-02
novar-dbase 23400 udp Novar Data [Keith_Kilroy] [Keith_Kilroy] 2006-02
novar-alarm 23401 tcp Novar Alarm [Keith_Kilroy] [Keith_Kilroy] 2006-02
novar-alarm 23401 udp Novar Alarm [Keith_Kilroy] [Keith_Kilroy] 2006-02
novar-global 23402 tcp Novar Global [Keith_Kilroy] [Keith_Kilroy] 2006-02
novar-global 23402 udp Novar Global [Keith_Kilroy] [Keith_Kilroy] 2006-02
23403-23455 Unassigned
aequus 23456 tcp Aequus Service [James_Anson] [James_Anson] 2009-02-12
23456 udp Reserved
aequus-alt 23457 tcp Aequus Service Mgmt [James_Anson] [James_Anson] 2009-02-12
23457 udp Reserved
23458-23545 Unassigned
areaguard-neo 23546 tcp AreaGuard Neo - WebServer [SODATSW_spol] [Roman_Štěpánek] 2012-05-31
23546 udp Reserved
23547-23999 Unassigned
vrmg-ip 24323 tcp Verimag mobile class protocol over TCP [Verimag_OOO] [Denis_Ionov] 2018-08-15
24323 udp Reserved
24923-24999 Unassigned
28201-28239 Unassigned
32250-32399 Unassigned
aurora-balaena 33123 tcp Aurora (Balaena Ltd) [Andrew_Mather] [Andrew_Mather] 2008-02-14
aurora-balaena 33123 udp Aurora (Balaena Ltd) [Andrew_Mather] [Andrew_Mather] 2008-02-14
slmap 36423 sctp SLm Interface Application Protocol [ThreeGPP_4] [Kimmo_Kymalainen] 2015-06-18
36463-36523 Unassigned
38423-38461 Unassigned
40023 tcp Reserved
k-patentssensor 40023 udp K-PatentsSensorInformation [Vaisala] [Saku_Lahteenmaki] 2015-12-02 2021-02-02
z-wave-s 41230 tcp Z-Wave Protocol over SSL/TLS [Sigma_Designs_3] [Anders_Brandt_4] 2015-06-26
z-wave-s 41230 udp Z-Wave Protocol over DTLS [Sigma_Designs_3] [Anders_Brandt_4] 2015-06-26
41231-41793 Unassigned
z-wave-tunnel 44123 tcp Z-Wave Secure Tunnel [Sigma_Designs_Inc] [Anders_Brandt_3] 2012-10-12 2015-06-26
44123 udp Reserved
pmwebapi 44323 tcp HTTP binding for Performance Co-Pilot client API [Performance_Co-Pilot_PCP_Project] [Ken_McDonell_2] 2013-10-09
44323 udp Unassigned "pcp" assignment withdrawn, moved to port 5351 per RFC6887
45679-45823 Unassigned
47558-47623 Unassigned
h323 H.323 Real-time audio, video and data communication call setup protocol [Will_MacDonald] [Will_MacDonald] Defined TXT keys: None

Contact Information

ID Name Organization Contact URI Last Updated
[Anders_Brandt_3] Anders Brandt Sigma Designs mailto:anders_brandt&sigmadesigns.com 2012-10-12
[Anders_Brandt_4] Anders Brandt Sigma Designs mailto:anders_brandt&sigmadesigns.com 2015-06-26
[Andrew_Mather] Andrew Mather mailto:info&balaena.com 2008-02-14
[Ayoda_GmbH] Ayoda GmbH mailto:info&ayoda.net 2016-04-01
[Chris_Forsythe] Chris Forsythe The Growl Project mailto:chris&growl.info 2012-02-07
[Chris_Koeritz_3] Chris Koeritz mailto:portmanager&inovasolutions.com 2006-10
[Denis_Ionov] Denis Ionov Verimag, OOO mailto:iddi&verimag.ru 2018-07-20
[Growl_Project] The Growl Project mailto:support&growl.info 2012-02-07
[James_Anson] James Anson mailto:janson&bigpond.com 2009-02-12
[Keith_Kilroy] Keith Kilroy mailto:Keith.Kilroy&novarcontrols.com 2006-02
[Ken_McDonell_2] Ken_McDonell mailto:kenj&internode.on.net 2013-10-09
[Kimmo_Kymalainen] Kimmo Kymalainen mailto:kimmo.kymalainen&etsi.org 2017-05-08
[Laurenz_Eschwey] Laurenz Eschwey mailto:laurenz.eschwey&ayoda.net 2016-04-01
[Maziar_Tamadon] Maziar Tamadon mailto:maziar.tamadon&emulex.com 2007-11-06
[Performance_Co-Pilot_PCP_Project] Performance Co-Pilot (PCP) Project mailto:kenj&internode.on.net 2013-10-09
[Roman_Štěpánek] Roman Štěpánek SODATSW spol. s r.o. mailto:roman.stepanek&sodatsw.cz 2012-05-31
[Saku_Lahteenmaki] Saku Lähteenmäki mailto:saku.lahteenmaki&vaisala.com 2021-02-02
[Sigma_Designs_Inc] Sigma Designs, Inc. mailto:anders_brandt&sigmadesigns.com 2011-10-03
[Sigma_Designs_3] Sigma Designs mailto:anders_brandt&sigmadesigns.com 2015-06-26
[SODATSW_spol] SODATSW spol. s r.o. mailto:info&sodatsw.cz 2012-05-31
[ThreeGPP_4] 3GPP mailto:kimmo.kymalainen&etsi.org 2015-06-18
[Vaisala] Vaisala mailto:saku.lahteenmaki&vaisala.com 2021-02-02
[Verimag_OOO] Verimag, OOO mailto:support&verimag.ru 2018-07-20
[WIBU-SYSTEMS_AG] WIBU-SYSTEMS AG mailto:oliver.winzenried&wibu.com 2013-06-25
[Will_MacDonald] Will MacDonald mailto:will&codian.com
[Wolfgang_Voelker] Wolfgang Voelker mailto:wolfgang.voelker&wibu.com 2007-06
[Wolfgang_Völker_2] Wolfgang Völker WIBU-SYSTEMS AG mailto:wolfgang.voelker&wibu.com 2013-06-25