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]

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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
derby-repli 4851 udp Apache Derby Replication [Jorgen_Loland] [Jorgen_Loland] 2008-02-27
4852-4866 Unassigned
unify-debug 4867 tcp Unify Debugger [Daegis_Inc] [Chris_Anderson] 2006-05 2012-07-31
unify-debug 4867 udp Unify Debugger [Daegis_Inc] [Chris_Anderson] 2006-05 2012-07-31
phrelay 4868 tcp Photon Relay
phrelay 4868 udp Photon Relay
phrelaydbg 4869 tcp Photon Relay Debug [Michael_Hunter] [Michael_Hunter]
phrelaydbg 4869 udp Photon Relay Debug [Michael_Hunter] [Michael_Hunter]
cc-tracking 4870 tcp Citcom Tracking Service [Wolfgang_Weidner] [Wolfgang_Weidner] 2005-12
cc-tracking 4870 udp Citcom Tracking Service [Wolfgang_Weidner] [Wolfgang_Weidner] 2005-12
wired 4871 tcp Wired [Axel_Andersson] [Axel_Andersson] 2006-02
wired 4871 udp Wired [Axel_Andersson] [Axel_Andersson] 2006-02
4872-4875 Unassigned
tritium-can 4876 tcp Tritium CAN Bus Bridge Service [James_Kennedy] [James_Kennedy] 2011-02-15
tritium-can 4876 udp Tritium CAN Bus Bridge Service [James_Kennedy] [James_Kennedy] 2011-02-15
lmcs 4877 tcp Lighting Management Control System [Timothy_Parry] [Timothy_Parry] 2011-02-15
lmcs 4877 udp Lighting Management Control System [Timothy_Parry] [Timothy_Parry] 2011-02-15
4878 tcp Reserved
inst-discovery 4878 udp Agilent Instrument Discovery [Charles_F_Steele] [Charles_F_Steele] 2011-02-15
wsdl-event 4879 tcp WSDL Event Receiver [Charles_F_Steele] [Charles_F_Steele] 2011-02-15
4879 udp Reserved
hislip 4880 tcp IVI High-Speed LAN Instrument Protocol [IVI_Foundation] [Larry_Ostheimer] 2021-05-06
4880 udp Reserved
4881 tcp Reserved
socp-t 4881 udp SOCP Time Synchronization Protocol [Joe_Haver] [Joe_Haver] 2010-05-28
4882 tcp Reserved
socp-c 4882 udp SOCP Control Protocol [Joe_Haver] [Joe_Haver] 2010-05-28
wmlserver 4883 tcp Meier-Phelps License Server [William_Phelps] [William_Phelps] 2010-03-22
4883 udp Reserved
hivestor 4884 tcp HiveStor Distributed File System [Nicholas_Young] [Nicholas_Young] 2008-07-10
hivestor 4884 udp HiveStor Distributed File System [Nicholas_Young] [Nicholas_Young] 2008-07-10
abbs 4885 tcp ABBS [Ryan_Rubley] [Ryan_Rubley]
abbs 4885 udp ABBS [Ryan_Rubley] [Ryan_Rubley]
4886-4887 Unassigned
xcap-portal 4888 tcp xcap code analysis portal public user access [_88solutions_Corporation] [Manfred_Koethe] 2018-06-06
4888 udp Reserved
xcap-control 4889 tcp xcap code analysis portal cluster control and administration [_88solutions_Corporation] [Manfred_Koethe] 2018-06-06
4889 udp Reserved
4890-4893 Unassigned
lyskom 4894 tcp LysKOM Protocol A [Per_Cederqvist] [Per_Cederqvist]
lyskom 4894 udp LysKOM Protocol A [Per_Cederqvist] [Per_Cederqvist]
4895-4898 Unassigned
radmin-port 4899 tcp RAdmin Port [Dmitri_Znosko] [Dmitri_Znosko] 2003-03
radmin-port 4899 udp RAdmin Port [Dmitri_Znosko] [Dmitri_Znosko] 2003-03
hfcs 4900 tcp HFSQL Client/Server Database Engine [PC_SOFT] [Jerome_AERTS_2] 2006-03-02 2014-02-02
hfcs 4900 udp HFSQL Client/Server Database Engine [PC_SOFT] [Jerome_AERTS_2] 2006-03-02 2014-02-02
flr-agent 4901 tcp FileLocator Remote Search Agent

IANA assigned this well-formed service name as a replacement for "flr_agent".
[David_Vest] [David_Vest] 2008-11-19
flr_agent 4901 tcp FileLocator Remote Search Agent [David_Vest] [David_Vest] 2008-11-19 This entry is an alias to "flr-agent". This entry is now historic, not usable for use with many common service discovery mechanisms.
4901 udp Reserved
magiccontrol 4902 tcp magicCONROL RF and Data Interface [Andreas_Spalenski] [Andreas_Spalenski] 2008-11-24
4902 udp Reserved
4903-4911 Unassigned
lutap 4912 tcp Technicolor LUT Access Protocol [Markus_Loeffler] [Markus_Loeffler] 2009-02-17
4912 udp Reserved
lutcp 4913 tcp LUTher Control Protocol [Markus_Loeffler] [Markus_Loeffler] 2007-07-03
bones 4914 tcp Bones Remote Control [Andreas_Foedrowitz] [Andreas_Foedrowitz] 2008-06-18
bones 4914 udp Bones Remote Control [Andreas_Foedrowitz] [Andreas_Foedrowitz] 2008-06-18
frcs 4915 tcp Fibics Remote Control Service [Ken_Lagarec] [Ken_Lagarec] 2009-04-17
4915 udp Reserved
4916-4935 Unassigned
an-signaling 4936 udp Signal protocol port for autonomic networking [Cisco_Systems_3] [Toerless_Eckert_2] 2014-06-06
4936 tcp Reserved
4937 tcp Reserved
atsc-mh-ssc 4937 udp ATSC-M/H Service Signaling Channel [Jerry_Whitaker] [Jerry_Whitaker] 2008-10-27
4938-4939 Unassigned
eq-office-4940 4940 tcp Equitrac Office
eq-office-4940 4940 udp Equitrac Office
eq-office-4941 4941 tcp Equitrac Office
eq-office-4941 4941 udp Equitrac Office
eq-office-4942 4942 tcp Equitrac Office [Tom_Haapanen_2] [Tom_Haapanen_2] 2007-07-11
eq-office-4942 4942 udp Equitrac Office [Tom_Haapanen_2] [Tom_Haapanen_2] 2007-07-11
4943-4948 Unassigned
munin 4949 tcp Munin Graphing Framework [Jimmy_Olsen] [Jimmy_Olsen] 2010-12-24
munin 4949 udp Munin Graphing Framework [Jimmy_Olsen] [Jimmy_Olsen] 2010-12-24
sybasesrvmon 4950 tcp Sybase Server Monitor [Chris_Irie] [Chris_Irie] 2008-03-26
sybasesrvmon 4950 udp Sybase Server Monitor [Chris_Irie] [Chris_Irie] 2008-03-26
pwgwims 4951 tcp PWG WIMS [Ira_McDonald] [Ira_McDonald] 2005-12
pwgwims 4951 udp PWG WIMS [Ira_McDonald] [Ira_McDonald] 2005-12
sagxtsds 4952 tcp SAG Directory Server [Michael_Chirila] [Michael_Chirila] 2006-01
sagxtsds 4952 udp SAG Directory Server [Michael_Chirila] [Michael_Chirila] 2006-01
dbsyncarbiter 4953 tcp Synchronization Arbiter [Dave_Neudoerffer_2] [Dave_Neudoerffer_2] 2009-11-18
4953 udp Reserved
4954-4968 Unassigned Known UNAUTHORIZED USE: port 4967
ccss-qmm 4969 tcp CCSS QMessageMonitor
ccss-qmm 4969 udp CCSS QMessageMonitor
ccss-qsm 4970 tcp CCSS QSystemMonitor [David_Young] [David_Young] 2006-01
ccss-qsm 4970 udp CCSS QSystemMonitor [David_Young] [David_Young] 2006-01
burp 4971 tcp BackUp and Restore Program [Marat_Khalili] [Marat_Khalili] 2017-08-23
4971 udp Reserved
4972-4979 Unassigned
ctxs-vpp 4980 udp Citrix Virtual Path [Citrix_Systems] [Rohith_Ramkumar] 2015-04-17
4980 tcp Reserved
4981-4982 Unassigned
4983 Unassigned 2005-12-22
webyast 4984 tcp WebYast [Federico_Lucifredi] [Federico_Lucifredi] 2009-09-25
4984 udp Reserved
gerhcs 4985 tcp GER HC Standard [Roger_Ward] [Roger_Ward] 2009-09-25
4985 udp Reserved
mrip 4986 tcp Model Railway Interface Program [Howard_Amos] [Howard_Amos] 2006-04
mrip 4986 udp Model Railway Interface Program [Howard_Amos] [Howard_Amos] 2006-04
smar-se-port1 4987 tcp SMAR Ethernet Port 1

Contact Information

ID Name Organization Contact URI Last Updated
[_88solutions_Corporation] 88solutions Corporation mailto:koethe&88solutions.com 2018-06-06
[Andreas_Foedrowitz] Andreas Foedrowitz mailto:andreas.foedrowitz&thomson.net 2008-06-18
[Andreas_Spalenski] Andreas Spalenski mailto:andreas.spalenski&trsystems.de 2008-11-24
[Axel_Andersson] Axel Andersson mailto:axel&zankasoftware.com 2006-02
[Charles_F_Steele] Charles F Steele mailto:charles_steele&agilent.com 2011-02-15
[Chris_Anderson] Chris Anderson Daegis, Inc. mailto:ianaportmaster&daegis.com 2012-07-31
[Chris_Irie] Chris Irie mailto:irie&sybase.com 2008-03-26
[Cisco_Systems_3] Cisco Systems mailto:eckert&cisco.com 2014-06-06
[Citrix_Systems] Citrix Systems mailto:CloudBridge-PM&citrix.com 2015-04-17
[Daegis_Inc] Daegis, Inc. mailto:ianaportmaster&daegis.com 2012-07-31
[Dave_Neudoerffer_2] Dave Neudoerffer mailto:dave.neudoerffer&sybase.com 2009-11-18
[David_Vest] David Vest mailto:dave&mythicsoft.com 2008-11-19
[David_Young] David Young mailto:david.young&ccsseurope.co.uk 2006-01
[Dmitri_Znosko] Dmitri Znosko mailto:support&radmin.com 2003-03
[Federico_Lucifredi] Federico Lucifredi mailto:flucifredi&novell.com 2009-09-25
[Howard_Amos] Howard Amos mailto:amos&ccww.co.uk 2006-04
[Ira_McDonald] Ira McDonald mailto:imcdonald&sharplabs.com 2005-12
[IVI_Foundation] Interchangeable Virtual Instruments Foundation, Inc. mailto:ivi.contact&ivifoundation.org 2021-05-06
[James_Kennedy] James Kennedy mailto:james&tritium.com.au 2011-02-15
[Jerome_AERTS_2] Jerome AERTS PC SOFT mailto:jae&pcsoft.fr 2014-02-02
[Jerry_Whitaker] Jerry Whitaker mailto:jwhitaker&atsc.org 2008-10-27
[Jimmy_Olsen] Jimmy Olsen mailto:jo&redpill-linpro.com 2010-12-24
[Joe_Haver] Joe Haver mailto:joe.haver&jdsu.com 2010-05-28
[Jorgen_Loland] Jorgen Loland mailto:jorgen.loland&sun.com 2008-02-27
[Ken_Lagarec] Ken Lagarec mailto:klagarec&fibics.com 2009-04-17
[Larry_Ostheimer] Larry Ostheimer mailto:larry_ostheimer&keysight.com 2021-05-06
[Manfred_Koethe] Manfred Koethe mailto:koethe&88solutions.com 2018-06-06
[Marat_Khalili] Marat Khalili mailto:qm2k&yandex.ru 2017-08-23
[Markus_Loeffler] Markus Loeffler mailto:markus.loeffler&thomson.net 2009-02-17
[Michael_Chirila] Michael Chirila mailto:Michael.Chirila&softwareag.com 2006-01
[Michael_Hunter] Michael Hunter mailto:mphunter&qnx.com
[Nicholas_Young] Nicholas Young mailto:ntchkd&gmail.com 2008-07-10
[PC_SOFT] PC SOFT mailto:jae&pcsoft.fr 2014-02-02
[Per_Cederqvist] Per Cederqvist mailto:ceder&lysator.liu.se
[Roger_Ward] Roger Ward mailto:roger.ward&ger911.com 2009-09-25
[Rohith_Ramkumar] Rohith Ramkumar Citrix Systems mailto:CloudBridge-PM&citrix.com 2015-04-17
[Ryan_Rubley] Ryan Rubley mailto:root&ark.dyn.ml.org
[Timothy_Parry] Timothy Parry mailto:tim&lumenergi.com 2011-02-15
[Toerless_Eckert_2] Toerless Eckert Cisco Systems mailto:eckert&cisco.com 2014-06-06
[Tom_Haapanen_2] Tom Haapanen mailto:tomh&equitrac.com 2007-07-11
[William_Phelps] William Phelps mailto:william&meier-phelps.com 2010-03-22
[Wolfgang_Weidner] Wolfgang Weidner mailto:ww&citcom.de 2005-12