Internet Assigned Numbers Authority

Service Name and Transport Protocol Port Number Registry

Last Updated
2024-12-20
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
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
caldsoft-backup 22537 tcp CaldSoft Backup server file transfer [CaldSoft] [Mark_Caldwell] 2011-08-12
22537 udp Reserved
22538-22554 Unassigned
vocaltec-wconf 22555 tcp Vocaltec Web Conference [Scott_Petrack] [Scott_Petrack]
vocaltec-phone 22555 udp Vocaltec Internet Phone [Scott_Petrack] [Scott_Petrack]
22556-22762 Unassigned
talikaserver 22763 tcp Talika Main Server [Laxman_C_Marathe] [Laxman_C_Marathe] 2006-12
talikaserver 22763 udp Talika Main Server [Laxman_C_Marathe] [Laxman_C_Marathe] 2006-12
22764-22799 Unassigned
aws-brf 22800 tcp Telerate Information Platform LAN [Timo_Sivonen] [Timo_Sivonen]
aws-brf 22800 udp Telerate Information Platform LAN [Timo_Sivonen] [Timo_Sivonen]
22801-22950 Unassigned
brf-gw 22951 tcp Telerate Information Platform WAN [Timo_Sivonen] [Timo_Sivonen]
brf-gw 22951 udp Telerate Information Platform WAN [Timo_Sivonen] [Timo_Sivonen]
22952-22999 Unassigned
hid 24322 udp Transport of Human Interface Device data streams [Freebox_SAS] [Nicolas_Pouillon] 2012-12-14
24322 tcp Reserved
find 24922 tcp Find Identification of Network Devices [Jean_Paul_Moreaux] [Jean_Paul_Moreaux]
find 24922 udp Find Identification of Network Devices [Jean_Paul_Moreaux] [Jean_Paul_Moreaux]
32035-32248 Unassigned
t1distproc60 32249 tcp T1 Distributed Processor [Peter_Beahan] [Peter_Beahan] 2004-11
t1distproc60 32249 udp T1 Distributed Processor [Peter_Beahan] [Peter_Beahan] 2004-11
32250-32399 Unassigned
33061-33122 Unassigned
36422 tcp Reserved
36422 udp Reserved
x2-control 36422 sctp X2-Control Plane (3GPP) [Kimmo_Kymalainen] [Kimmo_Kymalainen] 2009-09-01
38422 tcp Reserved
38422 udp Reserved
xn-control 38422 sctp Xn Control Plane (3GPP) [Luis_Lopes] [Luis_Lopes] 2017-05-18 2017-05-19
40001-40022 Unassigned
41122-41229 Unassigned
43442-44122 Unassigned
pmcdproxy 44322 tcp PCP server (pmcd) proxy [Ken_McDonell] [Ken_McDonell] 2003-07 2010-12-20
pmcdproxy 44322 udp PCP server (pmcd) proxy [Ken_McDonell] [Ken_McDonell] 2003-07 2010-12-20
jnx-kcsync tcp jollys keychain cloud sync protocol [Patrick_Stein] [Patrick_Stein] 2011-10-24 Defined TXT keys: hash=<40hex characters> salt=<40hex characters> uuid=<40hex characters> Example: hash=5e7580598c0d7064d4fc79faaeb42585e1a675f8 salt=f0164cb3a0c3d7efe75abea8fda86d2d56c8dda9 uuid=db61dc092922252e45bbb264f59147138c7fd5fa

Contact Information

ID Name Organization Contact URI Last Updated
[CaldSoft] CaldSoft mailto:development&caldsoft.co.uk 2011-08-12
[Freebox_SAS] Freebox SAS mailto:npouillon&freebox.fr 2012-12-14
[Jean_Paul_Moreaux] Jean-Paul Moreaux mailto:jean-paul.moreaux&airbus.com
[Ken_McDonell] Ken McDonell mailto:kenj&internode.on.net 2010-12-20
[Kimmo_Kymalainen] Kimmo Kymalainen mailto:kimmo.kymalainen&etsi.org 2017-05-08
[Laxman_C_Marathe] Laxman C. Marathe mailto:lcmarathe&thomsonpress.com 2006-12
[Luis_Lopes] Luis Lopes mailto:llopes&qti.qualcomm.com 2017-06-23
[Mark_Caldwell] Mark Caldwell mailto:development&caldsoft.co.uk 2011-08-12
[Nicolas_Pouillon] Nicolas Pouillon Freebox SAS mailto:npouillon&freebox.fr 2012-12-14
[Patrick_Stein] Patrick Stein mailto:Patrick.Stein&jinx.eu 2011-10-24
[Peter_Beahan] Peter Beahan mailto:peter_beahan&technologyonecorp.com 2004-11
[Scott_Petrack] Scott Petrack mailto:Scott_Petrack&vocaltec.com
[Timo_Sivonen] Timo Sivonen mailto:timo.sivonen&ccmail.dowjones.com
[WIBU-SYSTEMS_AG] WIBU-SYSTEMS AG mailto:oliver.winzenried&wibu.com 2013-06-25
[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