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]

Available Formats

CSV

XML

HTML

Plain text
Service Name Port Number Transport Protocol Description Assignee Contact Registration Date Modification Date Reference Service Code Unauthorized Use Reported Assignment Notes
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
cognex-dataman 44444 tcp Cognex DataMan Management Protocol [Cognex] [Mario_Joussen] 2012-08-28
44444 udp Reserved
acronis-backup 44445 tcp Acronis Backup Gateway service port [Acronis] [Kevin_Reed] 2019-11-25
44445 udp Reserved
44446-44543 Unassigned Known UNAUTHORIZED USE: Ports 44515 & 44516
44544 tcp Reserved
domiq 44544 udp DOMIQ Building Automation [DOMIQ_Sp_zoo] [Filip_Zawadiak] 2011-08-29
44545-44552 Unassigned
rbr-debug 44553 tcp REALbasic Remote Debug [Aaron_Ballman] [Aaron_Ballman] 2004-11
rbr-debug 44553 udp REALbasic Remote Debug [Aaron_Ballman] [Aaron_Ballman] 2004-11
44554-44599 Unassigned
44600 tcp Reserved

Contact Information

ID Name Organization Contact URI Last Updated
[Aaron_Ballman] Aaron Ballman mailto:aaron&realsoftware.com 2004-11
[Acronis] Acronis mailto:kr&acronis.com 2019-11-25
[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
[Chee_Kent_Lam] Chee Kent Lam mailto:cklam&foursticks.com 2002-04
[Cisco_Systems] Cisco Systems mailto:nmtg-port-numbers&cisco.com 2005-11
[Cognex] Cognex Corporation mailto:contactus&cognex.com 2012-08-28
[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
[DOMIQ_Sp_zoo] DOMIQ Sp. z o.o. mailto:registries&domiq.pl 2011-08-29
[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
[Filip_Zawadiak] Filip Zawadiak DOMIQ Sp. z o.o. mailto:fzawadiak&domiq.pl 2011-08-29
[Hearing_Australia] Hearing Australia mailto:dan.zhou&hearing.com.au 2021-12-23
[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
[Kevin_Reed] Kevin Reed mailto:kr&acronis.com 2019-11-25
[Mario_Joussen] Mario Joussen Cognex Corporation mailto:mario.joussen&cognex.com 2012-08-28
[Matthias_Holzaepfel] Matthias Holzaepfel Pilz GmbH & Co. KG mailto:m.holzaepfel&pilz.de 2022-12-15
[Michael_Dodge] Michael Dodge mailto:sarge&centerspan.com
[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
[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
[Vaisala] Vaisala mailto:saku.lahteenmaki&vaisala.com 2021-02-02
[Yohann_Sulaiman] Yohann Sulaiman mailto:ports&shaperai.com 2012-06-22