Service Name and Transport Protocol Port Number Registry

Last Updated
2019-02-15
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
arena-server 11321 tcp Arena Server Listen [Earl_Brannigan] [Earl_Brannigan]
arena-server 11321 udp Arena Server Listen [Earl_Brannigan] [Earl_Brannigan]
11322-11366 Unassigned
atm-uhas 11367 tcp ATM UHAS [Todd_Barker] [Todd_Barker]
atm-uhas 11367 udp ATM UHAS [Todd_Barker] [Todd_Barker]
11368-11370 Unassigned
hkp 11371 tcp OpenPGP HTTP Keyserver [David_Shaw] [David_Shaw] 2003-05
hkp 11371 udp OpenPGP HTTP Keyserver [David_Shaw] [David_Shaw] 2003-05
11372-11429 Unassigned
lsdp 11430 udp Lenbrook Service Discovery Protocol [Lenbrook_Industries_Limited] [Kevin_Groeneveld] 2014-03-27
11430 tcp Reserved
11431-11488 Unassigned Known UNAUTHORIZED USE: port 11488
asgcypresstcps 11489 tcp ASG Cypress Secure Only [David_Luxford] [David_Luxford] 2010-07-01
11489 udp Reserved
11490-11599 Unassigned
tempest-port 11600 tcp Tempest Protocol Port [Francis_Cianfrocca] [Francis_Cianfrocca]
tempest-port 11600 udp Tempest Protocol Port [Francis_Cianfrocca] [Francis_Cianfrocca]
11601-11622 Unassigned
emc-xsw-dconfig 11623 tcp EMC XtremSW distributed config [EMC] [David_Erel] 2013-09-18
11623 udp Reserved
11624-11719 Unassigned Unauthorized Use Known on port 11711
h323callsigalt 11720 tcp H.323 Call Control Signalling Alternate [ITU-T] [ITU-T_TSB] 2013-01-31
h323callsigalt 11720 udp H.323 Call Control Signalling Alternate [ITU-T] [ITU-T_TSB] 2013-01-31
11721-11722 Unassigned
emc-xsw-dcache 11723 tcp EMC XtremSW distributed cache [EMC] [David_Erel] 2013-09-18
emc-xsw-dcache 11723 udp EMC XtremSW distributed cache [EMC] [David_Erel] 2013-09-18
11724-11750 Unassigned
intrepid-ssl 11751 tcp Intrepid SSL [Robert_Eden] [Robert_Eden] 2003-03
intrepid-ssl 11751 udp Intrepid SSL [Robert_Eden] [Robert_Eden] 2003-03
11752-11795 Unassigned
lanschool 11796 tcp LanSchool [Stoneware_Inc] [Dana_Doggett] 2012-05-18
lanschool-mpt 11796 udp Lanschool Multipoint [Stoneware_Inc] [Dana_Doggett] 2012-05-18
11797-11875 Unassigned
xoraya 11876 tcp X2E Xoraya Multichannel protocol [Hannes_K] [Hannes_K] 2010-09-13
xoraya 11876 udp X2E Xoraya Multichannel protocol [Hannes_K] [Hannes_K] 2010-09-13
11877 tcp Reserved
x2e-disc 11877 udp X2E service discovery protocol [Hannes_K] [Hannes_K] 2010-09-13
11878-11966 Unassigned
sysinfo-sp 11967 tcp SysInfo Service Protocol [Mike_Cooper] [Mike_Cooper] 2003-03
sysinfo-sp 11967 udp SysInfo Service Protocol [Mike_Cooper] [Mike_Cooper] 2003-03
11968-11996 Unassigned
wmereceiving 11997 sctp WorldMailExpress [Greg_Foutz] [Greg_Foutz] 2006-03
wmedistribution 11998 sctp WorldMailExpress [Greg_Foutz] [Greg_Foutz] 2006-03
wmereporting 11999 sctp WorldMailExpress [Greg_Foutz] [Greg_Foutz] 2006-03
entextxid 12000 tcp IBM Enterprise Extender SNA XID Exchange [Eugene_Cox] [Eugene_Cox]
entextxid 12000 udp IBM Enterprise Extender SNA XID Exchange [Eugene_Cox] [Eugene_Cox]
entextnetwk 12001 tcp IBM Enterprise Extender SNA COS Network Priority [Eugene_Cox] [Eugene_Cox]
entextnetwk 12001 udp IBM Enterprise Extender SNA COS Network Priority [Eugene_Cox] [Eugene_Cox]
entexthigh 12002 tcp IBM Enterprise Extender SNA COS High Priority [Eugene_Cox] [Eugene_Cox]
entexthigh 12002 udp IBM Enterprise Extender SNA COS High Priority [Eugene_Cox] [Eugene_Cox]
entextmed 12003 tcp IBM Enterprise Extender SNA COS Medium Priority [Eugene_Cox] [Eugene_Cox]
entextmed 12003 udp IBM Enterprise Extender SNA COS Medium Priority [Eugene_Cox] [Eugene_Cox]
entextlow 12004 tcp IBM Enterprise Extender SNA COS Low Priority [Eugene_Cox] [Eugene_Cox]
entextlow 12004 udp IBM Enterprise Extender SNA COS Low Priority [Eugene_Cox] [Eugene_Cox]
dbisamserver1 12005 tcp DBISAM Database Server - Regular [Tim_Young] [Tim_Young] 2002-05
dbisamserver1 12005 udp DBISAM Database Server - Regular [Tim_Young] [Tim_Young] 2002-05
dbisamserver2 12006 tcp DBISAM Database Server - Admin [Tim_Young] [Tim_Young] 2002-05
dbisamserver2 12006 udp DBISAM Database Server - Admin [Tim_Young] [Tim_Young] 2002-05
accuracer 12007 tcp Accuracer Database System Server [Alexander_V_Ivanov] [Alexander_V_Ivanov] 2004-12
accuracer 12007 udp Accuracer Database System Server [Alexander_V_Ivanov] [Alexander_V_Ivanov] 2004-12
accuracer-dbms 12008 tcp Accuracer Database System Admin [Alexander_V_Ivanov] [Alexander_V_Ivanov] 2004-12
accuracer-dbms 12008 udp Accuracer Database System Admin [Alexander_V_Ivanov] [Alexander_V_Ivanov] 2004-12
12009 tcp Reserved
ghvpn 12009 udp Green Hills VPN [Green_Hills_Software] [Tom_R_Zavisca] 2012-02-07
edbsrvr 12010 tcp ElevateDB Server [Tim_Young] [Tim_Young] 2009-05-06
12010 udp Reserved
12011 Unassigned
vipera 12012 tcp Vipera Messaging Service [Silvano_Maffeis_2] [Silvano_Maffeis_2] 2005-08
vipera 12012 udp Vipera Messaging Service [Silvano_Maffeis_2] [Silvano_Maffeis_2] 2005-08
vipera-ssl 12013 tcp Vipera Messaging Service over SSL Communication [Silvano_Maffeis_2] [Silvano_Maffeis_2] 2008-01-16
vipera-ssl 12013 udp Vipera Messaging Service over SSL Communication [Silvano_Maffeis_2] [Silvano_Maffeis_2] 2008-01-16
12014-12108 Unassigned
rets-ssl 12109 tcp RETS over SSL [Jeremy_Crawford] [Jeremy_Crawford] 2003-02
rets-ssl 12109 udp RETS over SSL [Jeremy_Crawford] [Jeremy_Crawford] 2003-02
12110-12120 Unassigned
nupaper-ss 12121 tcp NuPaper Session Service [David_Warden_2] [David_Warden_2] 2005-11
nupaper-ss 12121 udp NuPaper Session Service [David_Warden_2] [David_Warden_2] 2005-11
12122-12167 Unassigned
cawas 12168 tcp CA Web Access Service [Jon_Press] [Jon_Press] 2005-08
cawas 12168 udp CA Web Access Service [Jon_Press] [Jon_Press] 2005-08
12169-12171 Unassigned
hivep 12172 tcp HiveP [Dick_Augustsson] [Dick_Augustsson]
hivep 12172 udp HiveP [Dick_Augustsson] [Dick_Augustsson]
12173-12299 Unassigned
linogridengine 12300 tcp LinoGrid Engine [Frans_Lundberg] [Frans_Lundberg] 2004-11
linogridengine 12300 udp LinoGrid Engine [Frans_Lundberg] [Frans_Lundberg] 2004-11
12301 Unassigned
rads 12302 tcp Remote Administration Daemon (RAD) is a system service that offers secure, remote, programmatic access to Solaris system configuration and run-time state [Oracle] [Devjani_Ray] 2012-04-20
12302 udp Reserved
12303-12320 Unassigned
warehouse-sss 12321 tcp Warehouse Monitoring Syst SSS [Craig_Steffen] [Craig_Steffen] 2005-08
warehouse-sss 12321 udp Warehouse Monitoring Syst SSS [Craig_Steffen] [Craig_Steffen] 2005-08
warehouse 12322 tcp Warehouse Monitoring Syst [Craig_Steffen] [Craig_Steffen] 2005-08
warehouse 12322 udp Warehouse Monitoring Syst [Craig_Steffen] [Craig_Steffen] 2005-08
12323-12344 Unassigned
italk 12345 tcp Italk Chat System [Takayuki_Ito] [Takayuki_Ito]
italk 12345 udp Italk Chat System [Takayuki_Ito] [Takayuki_Ito]
12346-12752 Unassigned
tsaf 12753 tcp tsaf port [Andreas_Fehr] [Andreas_Fehr]
tsaf 12753 udp tsaf port [Andreas_Fehr] [Andreas_Fehr]
12754-12864 Unassigned

People

ID Name Organization Contact URI Last Updated
[Alexander_V_Ivanov] Alexander V. Ivanov mailto:support&aidaim.com 2004-12
[Andreas_Fehr] Andreas Fehr mailto:andreas&mrs.ch
[Craig_Steffen] Craig Steffen mailto:csteffen&ncsa.uiuc.edu 2005-08
[Dana_Doggett] Dana Doggett Stoneware Inc. mailto:dana.doggett&stone-ware.com 2012-05-18
[David_Erel] David Erel EMC mailto:david.erel&emc.com 2013-09-18
[David_Luxford] David Luxford mailto:david.luxford&asg.com 2010-07-01
[David_Shaw] David Shaw mailto:dshaw&jabberwocky.com 2003-05
[David_Warden_2] David Warden mailto:warden&nupaper.com 2005-11
[Devjani_Ray] Devjani Ray Oracle Corporation mailto:Devjani.Ray&oracle.com 2012-04-20
[Dick_Augustsson] Dick Augustsson mailto:dick&skenbe.net
[Earl_Brannigan] Earl Brannigan mailto:earl.brannigan&lindenhous.co.uk
[EMC] EMC mailto:david.erel&emc.com 2013-09-18
[Eugene_Cox] Eugene Cox mailto:genecox&raleigh.ibm.com
[Francis_Cianfrocca] Francis Cianfrocca mailto:francis&tempest.com
[Frans_Lundberg] Frans Lundberg mailto:frans&linova.com 2004-11
[Green_Hills_Software] Green Hills Software mailto:iana-contact&ghs.com 2012-02-07
[Greg_Foutz] Greg Foutz mailto:gregf&adminovation.com 2006-03
[Hannes_K] Hannes Kälber mailto:hannes.kaelber&x2e.de 2010-09-13
[ITU-T] ITU-T mailto:tsbsg16&itu.int 2013-01-31
[ITU-T_TSB] ITU-T TSB ITU-T mailto:tsbsg16&itu.int 2013-01-31
[Jeremy_Crawford] Jeremy Crawford mailto:jeremy&reso.org 2015-09-07
[Jon_Press] Jon Press mailto:IANA.Registions&ca.com 2005-09
[Kevin_Groeneveld] Kevin Groeneveld Lenbrook Industries Limited mailto:kgroeneveld&lenbrook.com 2014-03-27
[Lenbrook_Industries_Limited] Lenbrook Industries Limited mailto:tsonderskov&lenbrook.com 2014-03-27
[Mike_Cooper] Mike Cooper mailto:mcooper&magnicomp.com 2003-03
[Oracle] Oracle Corporation mailto:Devjani.Ray&oracle.com 2012-04-20
[Robert_Eden] Robert Eden mailto:reden&sieglertech.com 2003-03
[Silvano_Maffeis_2] Silvano Maffeis mailto:maffeis&acm.org 2008-01-16
[Stoneware_Inc] Stoneware Inc. mailto:coby.gurr&stone-ware.com 2012-05-18
[Takayuki_Ito] Takayuki Ito mailto:yuki&euc.jp
[Tim_Young] Tim Young mailto:timyoung&elevatesoft.com 2009-05-06
[Todd_Barker] Todd Barker mailto:toddba&attachmate.com
[Tom_R_Zavisca] Tom R. Zavisca Green Hills Software mailto:iana-contact&ghs.com 2012-02-07