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
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
safetynetp 40000 tcp SafetyNET p [Pilz_GmbH_and_Co._KG] [Matthias_Holzaepfel] 2006-11 2022-12-15
safetynetp 40000 udp SafetyNET p [Pilz_GmbH_and_Co._KG] [Matthias_Holzaepfel] 2006-11 2022-12-15
40001-40022 Unassigned
40023 tcp Reserved
k-patentssensor 40023 udp K-PatentsSensorInformation [Vaisala] [Saku_Lahteenmaki] 2015-12-02 2021-02-02
40024-40403 Unassigned
sptx 40404 tcp Simplify Printing TX [Tricerat] [Eric_Musgrave] 2013-12-09
40404 udp Reserved
40405-40840 Unassigned
cscp 40841 tcp CSCP [Michael_Dodge] [Michael_Dodge]
cscp 40841 udp CSCP [Michael_Dodge] [Michael_Dodge]
csccredir 40842 tcp CSCCREDIR [Sudhir_Menon] [Sudhir_Menon]
csccredir 40842 udp CSCCREDIR [Sudhir_Menon] [Sudhir_Menon]
csccfirewall 40843 tcp CSCCFIREWALL [Sudhir_Menon] [Sudhir_Menon]
csccfirewall 40843 udp CSCCFIREWALL [Sudhir_Menon] [Sudhir_Menon]
40844-40852 Unassigned
40853 tcp Reserved
ortec-disc 40853 udp ORTEC Service Discovery [Jesse_Ursery] [Jesse_Ursery] 2010-11-22
40854-41110 Unassigned
fs-qos 41111 tcp Foursticks QoS Protocol [Chee_Kent_Lam] [Chee_Kent_Lam] 2002-04
fs-qos 41111 udp Foursticks QoS Protocol [Chee_Kent_Lam] [Chee_Kent_Lam] 2002-04
41112-41120 Unassigned
tentacle 41121 tcp Tentacle Server [Sancho_Lerena] [Sancho_Lerena] 2009-06-02
41121 udp Reserved
41122-41229 Unassigned
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
crestron-cip 41794 tcp Crestron Control Port [Crestron_Electronics] [John_Pavlik] 2003-01 2019-10-17
crestron-cip 41794 udp Crestron Control Port [Crestron_Electronics] [John_Pavlik] 2003-01 2019-10-17
crestron-ctp 41795 tcp Crestron Terminal Port [Crestron_Electronics] [John_Pavlik] 2003-01 2019-10-17
crestron-ctp 41795 udp Crestron Terminal Port [Crestron_Electronics] [John_Pavlik] 2003-01 2019-10-17
crestron-cips 41796 tcp Crestron Secure Control Port [Crestron_Electronics] [John_Pavlik] 2012-06-27 2019-10-17
41796 udp Reserved
crestron-ctps 41797 tcp Crestron Secure Terminal Port [Crestron_Electronics] [John_Pavlik] 2012-06-27 2019-10-17
41797 udp Reserved
41798-42507 Unassigned Unauthorized Use Known on port 42000
candp 42508 tcp Computer Associates network discovery protocol [Jon_Press] [Jon_Press] 2005-09
candp 42508 udp Computer Associates network discovery protocol [Jon_Press] [Jon_Press] 2005-09
candrp 42509 tcp CA discovery response [Jon_Press] [Jon_Press] 2005-08
candrp 42509 udp CA discovery response [Jon_Press] [Jon_Press] 2005-08
caerpc 42510 tcp CA eTrust RPC [Jon_Press] [Jon_Press] 2005-08
caerpc 42510 udp CA eTrust RPC [Jon_Press] [Jon_Press] 2005-08
42511-42998 Unassigned
curiosity 42999 tcp API endpoint for search application [Curiosity_GmbH] [Rafael_Fernandes_de_Oliveira] 2022-12-09
42999 udp Reserved
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
shaperai 43210 tcp Shaper Automation Server Management [Shaper_Automation] [Yohann_Sulaiman] 2012-06-22
shaperai-disc 43210 udp Shaper Automation Server Management Discovery [Shaper_Automation] [Yohann_Sulaiman] 2012-06-22
43211-43437 Unassigned
43438 tcp Reserved
hmip-routing 43438 udp HmIP LAN Routing [eQ-3_Entwicklung_GmbH] [Tido_de_Vries] 2018-02-28
eq3-update 43439 tcp EQ3 firmware update [eQ-3_Entwicklung_GmbH] [Tido_de_Vries] 2012-02-10 2014-05-09
eq3-config 43439 udp EQ3 discovery and configuration [eQ-3_Entwicklung_GmbH] [Tido_de_Vries] 2012-02-10 2014-05-09
ew-mgmt 43440 tcp Cisco EnergyWise Management
ew-disc-cmd 43440 udp Cisco EnergyWise Discovery and Command Flooding [John_Parello] [John_Parello] 2009-05-19
ciscocsdb 43441 tcp Cisco NetMgmt DB Ports [Cisco_Systems] [Cisco_Systems] 2005-11
ciscocsdb 43441 udp Cisco NetMgmt DB Ports [Cisco_Systems] [Cisco_Systems] 2005-11
43442-44122 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
44124-44320 Unassigned
pmcd 44321 tcp PCP server (pmcd) [Ken_McDonell] [Ken_McDonell] 2010-12-20
pmcd 44321 udp PCP server (pmcd) [Ken_McDonell] [Ken_McDonell] 2010-12-20
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
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
44324-44443 Unassigned

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
[Anthony_LaMark] Anthony LaMark Squadra Technologies mailto:anthony&squadratechnologies.com 2012-03-14
[Brain_Patchwork_DX_LLC] Brain Patchwork DX, LLC. mailto:specifications&brainpatchworkdx.com 2022-02-15
[Chee_Kent_Lam] Chee Kent Lam mailto:cklam&foursticks.com 2002-04
[Cisco_Systems] Cisco Systems mailto:nmtg-port-numbers&cisco.com 2005-11
[Crestron_Electronics] Crestron Electronics, Inc. mailto:jpavlik&crestron.com 2019-10-17
[Curiosity_GmbH] Curiosity GmbH mailto:hello&curiosity.ai 2022-12-09
[Dan_Zhou] Dan Zhou Hearing Australia mailto:dan.zhou&hearing.com.au 2021-12-23
[eQ-3_Entwicklung_GmbH] eQ-3 Entwicklung GmbH mailto:ports&entwicklung.eq-3.de 2018-02-28
[Eric_Musgrave] Eric Musgrave Tricerat mailto:emusgrave&tricerat.com 2013-12-09
[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
[Issam_Toufik] Issam Toufik Huawei Technologies France mailto:yangxudong&huawei.com 2018-11-06
[Jesse_Ursery] Jesse Ursery mailto:jesse.ursery&ametek.com 2010-11-22
[John_Parello] John Parello mailto:jparello&cisco.com 2009-05-19
[John_Pavlik] John Pavlik mailto:jpavlik&crestron.com 2019-10-17
[Jon_Press] Jon Press mailto:IANA.Registions&ca.com 2005-09
[Ken_McDonell] Ken McDonell mailto:kenj&internode.on.net 2010-12-20
[Ken_McDonell_2] Ken_McDonell mailto:kenj&internode.on.net 2013-10-09
[Luis_Lopes] Luis Lopes mailto:llopes&qti.qualcomm.com 2017-06-23
[Matthias_Holzaepfel] Matthias Holzaepfel Pilz GmbH & Co. KG mailto:m.holzaepfel&pilz.de 2022-12-15
[Michael_Dodge] Michael Dodge mailto:sarge&centerspan.com
[Ozz_Nixon] Ozz Nixon Brain Patchwork DX, LLC. mailto:specifications&bpdx.com 2022-02-15
[Performance_Co-Pilot_PCP_Project] Performance Co-Pilot (PCP) Project mailto:kenj&internode.on.net 2013-10-09
[Peter_Hyde] Peter Hyde mailto:peter&spis.co.nz
[Pilz_GmbH_and_Co._KG] Pilz GmbH & Co. KG mailto:m.holzaepfel&pilz.de 2022-12-15
[Rafael_Fernandes_de_Oliveira] Rafael Fernandes de Oliveira mailto:rafael&curiosity.ai 2022-12-09
[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
[Sancho_Lerena] Sancho Lerena mailto:slerena&artica.es 2009-06-02
[Shaper_Automation] Shaper Automation Inc. mailto:ports&shaperai.com 2012-06-22
[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
[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
[Theo_Schlossnagle] Theo Schlossnagle mailto:jesus&omniti.com 2009-05-19
[Tido_de_Vries] Tido de Vries eQ-3 Entwicklung GmbH mailto:tido.devries&entwicklung.eq-3.de 2018-02-28
[Tricerat] Tricerat mailto:emusgrave&tricerat.com 2013-12-09
[University_Corporation_for_Atmospheric_Research] The University Corporation for Atmospheric Research mailto:support&unidata.ucar.edu 2012-05-07
[Vaisala] Vaisala mailto:saku.lahteenmaki&vaisala.com 2021-02-02
[Yang_Xudong] Yang Xudong Huawei Technologies France mailto:yangxudong&huawei.com 2018-11-06
[Yohann_Sulaiman] Yohann Sulaiman mailto:ports&shaperai.com 2012-06-22