Internet Assigned Numbers Authority

Service Name and Transport Protocol Port Number Registry

Last Updated
2025-04-03
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
m3ap 36444 sctp M3 Application Part [Dario_S_Tonesi] [Dario_S_Tonesi] 2011-02-07
36445-36461 Unassigned
36462 tcp Reserved
36462 udp Reserved
xw-control 36462 sctp Xw-Control Plane (3GPP) [Boubacar_KIMNBA_DIT_ADAMOU] [Boubacar_KIMNBA_DIT_ADAMOU] 2015-11-13
36463-36523 Unassigned
febooti-aw 36524 tcp Febooti Automation Workshop [Maris_Bormanis] [Maris_Bormanis] 2011-06-10
36524 udp Reserved
36525-36601 Unassigned
observium-agent 36602 tcp Observium statistics collection agent [Observium] [Adam_Armstrong] 2013-05-10
36602 udp Reserved
36603-36699 Unassigned
mapx 36700 tcp MapX communication [MicroTechniX] [Yarochkin_Michail] 2014-10-13
36700 udp Reserved
36701-36864 Unassigned
kastenxpipe 36865 tcp KastenX Pipe [Guy_Cheng] [Guy_Cheng]
kastenxpipe 36865 udp KastenX Pipe [Guy_Cheng] [Guy_Cheng]
36866-37471 Unassigned
37472 tcp Reserved
37472 udp Reserved
3gpp-w1ap 37472 sctp W1 signalling transport [ThreeGPP_5] [Lionel_Morand] 2020-07-16
37473-37474 Unassigned
neckar 37475 tcp science + computing's Venus Administration Port [Ralf_Allrutz] [Ralf_Allrutz] 2002-02
neckar 37475 udp science + computing's Venus Administration Port [Ralf_Allrutz] [Ralf_Allrutz] 2002-02
37476-37482 Unassigned
gdrive-sync 37483 tcp Google Drive Sync [Google_Inc] [Jason_Schiller] 2013-02-01 2015-07-31
37483 udp Reserved
37484-37600 Unassigned
eftp 37601 tcp Epipole File Transfer Protocol [Epipole_Limited] [Colin_Buchanan] 2014-11-13
37601 udp Reserved
37602-37653 Unassigned
unisys-eportal 37654 tcp Unisys ClearPath ePortal [Sung_U_Ro] [Sung_U_Ro] 2006-01
unisys-eportal 37654 udp Unisys ClearPath ePortal [Sung_U_Ro] [Sung_U_Ro] 2006-01
37655-37999 Unassigned
ivs-database 38000 tcp InfoVista Server Database [InfoVista] [Sebastien_Bouchex_Bellomie] 2014-05-23
38000 udp Reserved
ivs-insertion 38001 tcp InfoVista Server Insertion [InfoVista] [Sebastien_Bouchex_Bellomie] 2014-05-23
38001 udp Reserved
cresco-control 38002 tcp Cresco Controller [UofK] [Cody_Bumgardner] 2014-11-21
crescoctrl-disc 38002 udp Cresco Controller Discovery [UofK] [Cody_Bumgardner] 2014-11-21
38003-38200 Unassigned
galaxy7-data 38201 tcp Galaxy7 Data Tunnel [Tatham_Oddie] [Tatham_Oddie] 2002-09
galaxy7-data 38201 udp Galaxy7 Data Tunnel [Tatham_Oddie] [Tatham_Oddie] 2002-09
fairview 38202 tcp Fairview Message Service [Jim_Lyle] [Jim_Lyle] 2005-11 Defined TXT keys: DevID=<device id>, DevType=<device type>, DevStat=<device status>
fairview 38202 udp Fairview Message Service [Jim_Lyle] [Jim_Lyle] 2005-11 Defined TXT keys: DevID=<device id>, DevType=<device type>, DevStat=<device status>
agpolicy 38203 tcp AppGate Policy Server [Martin_Forssen] [Martin_Forssen] 2004-11
agpolicy 38203 udp AppGate Policy Server [Martin_Forssen] [Martin_Forssen] 2004-11
38204-38411 Unassigned
38412 tcp Reserved
38412 udp Reserved
ng-control 38412 sctp NG Control Plane (3GPP) [Luis_Lopes] [Luis_Lopes] 2017-05-18 2017-05-19
38413-38421 Unassigned
38422 tcp Reserved
38422 udp Reserved
xn-control 38422 sctp Xn Control Plane (3GPP) [Luis_Lopes] [Luis_Lopes] 2017-05-18 2017-05-19
38423-38461 Unassigned
38462 tcp Reserved
38462 udp Reserved
e1-interface 38462 sctp E1 signalling transport (3GPP) [Huawei_Technologies_France] [Yang_Xudong][Issam_Toufik] 2018-11-06 2018-11-15
38463-38471 Unassigned
38472 tcp Reserved
38472 udp Reserved
f1-control 38472 sctp F1 Control Plane (3GPP) [Luis_Lopes] [Luis_Lopes] 2017-06-23
38473-38637 Unassigned
psqlmws 38638 tcp Premier SQL Middleware Server [Brain_Patchwork_DX_LLC] [Ozz_Nixon] 2022-02-15
38638 udp Reserved
38639-38799 Unassigned
sruth 38800 tcp Sruth is a service for the distribution of routinely- generated but arbitrary files based on a publish/subscribe distribution model and implemented using a peer-to-peer transport mechanism [University_Corporation_for_Atmospheric_Research] [Steven_Emmerson] 2012-05-07
38800 udp Reserved
38801-38864 Unassigned
secrmmsafecopya 38865 tcp Security approval process for use of the secRMM SafeCopy program [Squadra_Technologies] [Anthony_LaMark] 2012-03-14
38865 udp Reserved
38866-39062 Unassigned
vroa 39063 tcp Children's hearing test/Telemedicine [Hearing_Australia] [Dan_Zhou] 2021-12-23
39063 udp Reserved
39064-39680 Unassigned
turbonote-1 39681 tcp TurboNote Default Port [Peter_Hyde] [Peter_Hyde]
turbonote-1 39681 udp TurboNote Default Port [Peter_Hyde] [Peter_Hyde]
39682-39999 Unassigned
40023 tcp Reserved
k-patentssensor 40023 udp K-PatentsSensorInformation [Vaisala] [Saku_Lahteenmaki] 2015-12-02 2021-02-02
40024-40403 Unassigned
csccfirewall 40843 tcp CSCCFIREWALL [Sudhir_Menon] [Sudhir_Menon]
csccfirewall 40843 udp CSCCFIREWALL [Sudhir_Menon] [Sudhir_Menon]
40853 tcp Reserved
ortec-disc 40853 udp ORTEC Service Discovery [Jesse_Ursery] [Jesse_Ursery] 2010-11-22
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
recvr-rc 43000 tcp Receiver Remote Control [Research_Electronics_International] [Ross_Binkley] 2012-12-20
recvr-rc-disc 43000 udp Receiver Remote Control Discovery [Research_Electronics_International] [Ross_Binkley] 2012-12-20
43001-43187 Unassigned
reachout 43188 tcp REACHOUT [Roman_Kriis] [Roman_Kriis]
reachout 43188 udp REACHOUT [Roman_Kriis] [Roman_Kriis]
ndm-agent-port 43189 tcp NDM-AGENT-PORT [Roman_Kriis] [Roman_Kriis]
ndm-agent-port 43189 udp NDM-AGENT-PORT [Roman_Kriis] [Roman_Kriis]
ip-provision 43190 tcp IP-PROVISION [Roman_Kriis] [Roman_Kriis]
ip-provision 43190 udp IP-PROVISION [Roman_Kriis] [Roman_Kriis]
noit-transport 43191 tcp Reconnoiter Agent Data Transport [Theo_Schlossnagle] [Theo_Schlossnagle] 2009-05-19
43191 udp Reserved
43192-43209 Unassigned

Contact Information

ID Name Organization Contact URI Last Updated
[Adam_Armstrong] Adam Armstrong Observium mailto:adama&observium.org 2013-05-10
[Anders_Brandt_4] Anders Brandt Sigma Designs mailto:anders_brandt&sigmadesigns.com 2015-06-26
[Anthony_LaMark] Anthony LaMark Squadra Technologies mailto:anthony&squadratechnologies.com 2012-03-14
[Boubacar_KIMNBA_DIT_ADAMOU] Boubacar KIMNBA DIT ADAMOU mailto:jinba&chinamobile.com 2015-11-13
[Brain_Patchwork_DX_LLC] Brain Patchwork DX, LLC. mailto:specifications&brainpatchworkdx.com 2022-02-15
[Cody_Bumgardner] Cody Bumgardner University of Kentucky mailto:cody&uky.edu 2014-11-21
[Colin_Buchanan] Colin Buchanan Epipole Limited mailto:colin&epipole.com 2014-11-13
[Dan_Zhou] Dan Zhou Hearing Australia mailto:dan.zhou&hearing.com.au 2021-12-23
[Dario_S_Tonesi] Dario S. Tonesi mailto:dario.tonesi&nsn.com 2011-02-07
[Epipole_Limited] Epipole Limited mailto:info&epipole.com 2014-11-13
[Google_Inc] Google Inc. mailto:numbers&google.com 2015-07-31
[Guy_Cheng] Guy Cheng mailto:GCHE&kastenchase.com
[Hearing_Australia] Hearing Australia mailto:dan.zhou&hearing.com.au 2021-12-23
[Huawei_Technologies_France] Huawei Technologies France mailto:yangxudong&huawei.com 2018-11-06
[InfoVista] InfoVista mailto:sbouchex&infovista.com 2014-05-23
[Issam_Toufik] Issam Toufik Huawei Technologies France mailto:yangxudong&huawei.com 2018-11-06
[Jason_Schiller] Jason Schiller Google Inc. mailto:jschiller&google.com 2015-07-31
[Jesse_Ursery] Jesse Ursery mailto:jesse.ursery&ametek.com 2010-11-22
[Jim_Lyle] Jim Lyle mailto:jim.lyle&siliconimage.com 2005-11
[Lionel_Morand] Lionel Morand mailto:lionel.morand&orange.com 2020-07-16
[Luis_Lopes] Luis Lopes mailto:llopes&qti.qualcomm.com 2017-06-23
[Maris_Bormanis] Maris Bormanis mailto:info&febooti.com 2011-06-10
[Martin_Forssen] Martin Forssen mailto:maf&appgate.com 2004-11
[MicroTechniX] MicroTechniX mailto:Info&microtechnix.com 2014-10-13
[Observium] Observium mailto:adama&observium.org 2013-05-10
[Ozz_Nixon] Ozz Nixon Brain Patchwork DX, LLC. mailto:specifications&bpdx.com 2022-02-15
[Peter_Hyde] Peter Hyde mailto:peter&spis.co.nz
[Ralf_Allrutz] Ralf Allrutz mailto:R.Allrutz&science-computing.de 2002-02
[Research_Electronics_International] Research Electronics International mailto:software&reiusa.net 2012-12-20
[Roman_Kriis] Roman Kriis mailto:roman&previo.ee
[Ross_Binkley] Ross Binkley Research Electronics International mailto:software&reiusa.net 2012-12-20
[Saku_Lahteenmaki] Saku Lähteenmäki mailto:saku.lahteenmaki&vaisala.com 2021-02-02
[Sebastien_Bouchex_Bellomie] Sébastien Bouchex Bellomié InfoVista mailto:sbouchex&infovista.com 2014-05-23
[Sigma_Designs_3] Sigma Designs mailto:anders_brandt&sigmadesigns.com 2015-06-26
[Squadra_Technologies] Squadra Technologies mailto:anthony&squadratechnologies.com 2012-03-14
[Steven_Emmerson] Steven Emmerson The University Corporation for Atmospheric Research mailto:emmerson&ucar.edu 2012-05-07
[Sudhir_Menon] Sudhir Menon mailto:sudhir&centerspan.com
[Sung_U_Ro] Sung U. Ro mailto:ePortalSupport&unisys.com 2006-01
[Tatham_Oddie] Tatham Oddie mailto:tatham&e-oddie.com 2002-09
[Theo_Schlossnagle] Theo Schlossnagle mailto:jesus&omniti.com 2009-05-19
[ThreeGPP_5] 3GPP mailto:lionel.morand&orange.com 2020-07-16
[University_Corporation_for_Atmospheric_Research] The University Corporation for Atmospheric Research mailto:support&unidata.ucar.edu 2012-05-07
[UofK] University of Kentucky mailto:cody&uky.edu 2014-11-21
[Vaisala] Vaisala mailto:saku.lahteenmaki&vaisala.com 2021-02-02
[Yang_Xudong] Yang Xudong Huawei Technologies France mailto:yangxudong&huawei.com 2018-11-06
[Yarochkin_Michail] Yarochkin Michail MicroTechniX mailto:Michail.Yarochkin&microtechnix.com 2014-10-13