Service Name and Transport Protocol Port Number Registry

Last Updated
2020-11-24
Expert(s)
TCP/UDP: Joe Touch; Eliot Lear, Allison Mankin, Markku Kojo, Kumiko Ono, Martin Stiemerling, 
Lars Eggert, Alexey Melnikov, Wes Eddy, Alexander Zimmermann, Brian Trammell, and Jana Iyengar
SCTP: Allison Mankin and 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 difference uses of these ranges is 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.                                                   *
************************************************************************
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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
https 443 tcp http protocol over TLS/SSL [IESG] [IETF_Chair] 2018-07-06
https 443 udp http protocol over TLS/SSL [IESG] [IETF_Chair] 2018-07-06
https 443 sctp HTTPS [Randall_Stewart] [Randall_Stewart] [RFC4960]
kink 910 tcp Kerberized Internet Negotiation of Keys (KINK) [RFC4430]
kink 910 udp Kerberized Internet Negotiation of Keys (KINK) [RFC4430]
ies-lm 1443 tcp Integrated Engineering Software [David_Tong] [David_Tong]
ies-lm 1443 udp Integrated Engineering Software [David_Tong] [David_Tong]
powerclientcsf 2443 tcp PowerClient Central Storage Facility [Brian_Klassen] [Brian_Klassen]
powerclientcsf 2443 udp PowerClient Central Storage Facility [Brian_Klassen] [Brian_Klassen]
ov-nnm-websrv 3443 tcp OpenView Network Node Manager WEB Server [Anthony_Walker] [Anthony_Walker] 2002-03
ov-nnm-websrv 3443 udp OpenView Network Node Manager WEB Server [Anthony_Walker] [Anthony_Walker] 2002-03
rsqlserver 4430 tcp REAL SQL Server [Marco_Bambini] [Marco_Bambini] 2008-08-28
rsqlserver 4430 udp REAL SQL Server [Marco_Bambini] [Marco_Bambini] 2008-08-28
wspipe 4431 tcp adWISE Pipe [Heikki_E] [Heikki_E] 2009-06-18
4431 udp Reserved
l-acoustics 4432 tcp L-ACOUSTICS management [L-ACOUSTICS] [Christophe_Pignon] 2012-08-13
l-acoustics 4432 udp L-ACOUSTICS management [L-ACOUSTICS] [Christophe_Pignon] 2012-08-13
vop 4433 tcp Versile Object Protocol [Versile_AS] [Tore_Skaug] 2012-02-01
4433 udp Reserved
4434-4440 Unassigned
pharos 4443 tcp Pharos [TeleConsult] [TeleConsult] Known Unauthorized Use on port 4443
pharos 4443 udp Pharos [TeleConsult] [TeleConsult] Known Unauthorized Use on port 4443
spss 5443 tcp Pearson HTTPS [Pearson] [Pearson] 2008-01-17
spss 5443 udp Pearson HTTPS [Pearson] [Pearson] 2008-01-17
sun-sr-https 6443 tcp Service Registry Default HTTPS Domain [Paul_Sterk] [Paul_Sterk] 2006-03
sun-sr-https 6443 udp Service Registry Default HTTPS Domain [Paul_Sterk] [Paul_Sterk] 2006-03
oracleas-https 7443 tcp Oracle Application Server HTTPS [David_McMarlin] [David_McMarlin] 2006-08
oracleas-https 7443 udp Oracle Application Server HTTPS [David_McMarlin] [David_McMarlin] 2006-08
pcsync-https 8443 tcp PCsync HTTPS
pcsync-https 8443 udp PCsync HTTPS
tungsten-https 9443 tcp WSO2 Tungsten HTTPS [Afkham_Azeez] [Afkham_Azeez] 2006-06
tungsten-https 9443 udp WSO2 Tungsten HTTPS [Afkham_Azeez] [Afkham_Azeez] 2006-06
cirrossp 10443 tcp CirrosSP Workstation Communication [Cirros_Document_Solutions_Ltd] [Andy_Garratt] 2020-02-12
10443 udp Reserved
27443-27503 Unassigned
m2ap 36443 sctp M2 Application Part [Dario_S_Tonesi] [Dario_S_Tonesi] 2011-02-07
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
[Afkham_Azeez] Afkham Azeez mailto:azeez&wso2.com 2006-06
[Andy_Garratt] Andy Garratt Cirros Document Solutions Ltd mailto:admin&cirros.net 2020-02-12
[Anthony_Walker] Anthony Walker mailto:anthony_walker&hp.com 2002-03
[Brian_Klassen] Brian Klassen mailto:Brian.Klassen&unisys.com
[Christophe_Pignon] Christophe Pignon L-ACOUSTICS mailto:christophe.pignon&l-acoustics.com 2012-08-13
[Cirros_Document_Solutions_Ltd] Cirros Document Solutions Ltd mailto:admin&cirros.net 2020-02-12
[Dario_S_Tonesi] Dario S. Tonesi mailto:dario.tonesi&nsn.com 2011-02-07
[David_McMarlin] David McMarlin mailto:david.mcmarlin&oracle.com 2006-08
[David_Tong] David Tong mailto:David_Tong&integrated.mb.ca
[Heikki_E] Heikki Ellilä mailto:heikki.ellila&western.fi 2009-06-18
[IESG] IESG mailto:iesg&ietf.org
[IETF_Chair] IETF Chair IETF mailto:chair&ietf.org
[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
[L-ACOUSTICS] L-ACOUSTICS mailto:christophe.pignon&l-acoustics.com 2012-08-13
[Marco_Bambini] Marco Bambini mailto:marco&realsoftware.com 2008-08-28
[Paul_Sterk] Paul Sterk mailto:paul.sterk&sun.com 2006-03
[Pearson] Pearson mailto:chad.smith&pearson.com 2008-01-17
[Performance_Co-Pilot_PCP_Project] Performance Co-Pilot (PCP) Project mailto:kenj&internode.on.net 2013-10-09
[Randall_Stewart] Randall Stewart IETF TSVWG mailto:rrs&lakerest.net
[TeleConsult] TeleConsult GmbH, 76275 Ettlingen, Germany mailto:teleconsult&t-online.de
[Tore_Skaug] Tore Skaug Versile AS mailto:tore.skaug&versile.com 2012-02-01
[Versile_AS] Versile AS mailto:contact&versile.com 2012-02-01