Internet Assigned Numbers Authority

Service Name and Transport Protocol Port Number Registry

Last Updated
2022-06-10
Expert(s)
TCP/UDP: Joe Touch; Eliot Lear, Markku Kojo, Kumiko Ono, Martin Stiemerling, 
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.                                                   *
************************************************************************
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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
ada-cip 2085 tcp ADA Control [Eugene_Frenkel] [Eugene_Frenkel] 2005-11
ada-cip 2085 udp ADA Control [Eugene_Frenkel] [Eugene_Frenkel] 2005-11
gnunet 2086 tcp GNUnet [Christian_Grothoff] [Christian_Grothoff] 2002-10
gnunet 2086 udp GNUnet [Christian_Grothoff] [Christian_Grothoff] 2002-10
eli 2087 tcp ELI - Event Logging Integration [Maya_Zimerman] [Maya_Zimerman]
eli 2087 udp ELI - Event Logging Integration [Maya_Zimerman] [Maya_Zimerman]
ip-blf 2088 tcp IP Busy Lamp Field [Jeffrey_Szczepanski] [Jeffrey_Szczepanski] 2005-02
ip-blf 2088 udp IP Busy Lamp Field [Jeffrey_Szczepanski] [Jeffrey_Szczepanski] 2005-02
sep 2089 tcp Security Encapsulation Protocol - SEP [Maya_Zimerman] [Maya_Zimerman]
sep 2089 udp Security Encapsulation Protocol - SEP [Maya_Zimerman] [Maya_Zimerman]
lrp 2090 tcp Load Report Protocol [Amir_Peless] [Amir_Peless]
lrp 2090 udp Load Report Protocol [Amir_Peless] [Amir_Peless]
prp 2091 tcp PRP [Amir_Peless] [Amir_Peless]
prp 2091 udp PRP [Amir_Peless] [Amir_Peless]
descent3 2092 tcp Descent 3 [Kevin_Bentley] [Kevin_Bentley]
descent3 2092 udp Descent 3 [Kevin_Bentley] [Kevin_Bentley]
nbx-cc 2093 tcp NBX CC
nbx-cc 2093 udp NBX CC
nbx-au 2094 tcp NBX AU
nbx-au 2094 udp NBX AU
nbx-ser 2095 tcp NBX SER
nbx-ser 2095 udp NBX SER
nbx-dir 2096 tcp NBX DIR [Henry_Houh] [Henry_Houh]
nbx-dir 2096 udp NBX DIR [Henry_Houh] [Henry_Houh]
jetformpreview 2097 tcp Jet Form Preview [Zygmunt_Wiercioch] [Zygmunt_Wiercioch]
jetformpreview 2097 udp Jet Form Preview [Zygmunt_Wiercioch] [Zygmunt_Wiercioch]
dialog-port 2098 tcp Dialog Port [Joseph_Mathew] [Joseph_Mathew]
dialog-port 2098 udp Dialog Port [Joseph_Mathew] [Joseph_Mathew]
h2250-annex-g 2099 tcp H.225.0 Annex G Signalling [ITU-T] [ITU-T_TSB] 2013-01-31
h2250-annex-g 2099 udp H.225.0 Annex G Signalling [ITU-T] [ITU-T_TSB] 2013-01-31
amiganetfs 2100 tcp Amiga Network Filesystem [Rudi_Chiarito] [Rudi_Chiarito]
amiganetfs 2100 udp Amiga Network Filesystem [Rudi_Chiarito] [Rudi_Chiarito]
rtcm-sc104 2101 tcp rtcm-sc104 [Wolfgang_Rupprecht] [Wolfgang_Rupprecht]
rtcm-sc104 2101 udp rtcm-sc104 [Wolfgang_Rupprecht] [Wolfgang_Rupprecht]
zephyr-srv 2102 tcp Zephyr server
zephyr-srv 2102 udp Zephyr server
zephyr-clt 2103 tcp Zephyr serv-hm connection
zephyr-clt 2103 udp Zephyr serv-hm connection
zephyr-hm 2104 tcp Zephyr hostmanager [Greg_Hudson] [Greg_Hudson]
zephyr-hm 2104 udp Zephyr hostmanager [Greg_Hudson] [Greg_Hudson]
minipay 2105 tcp MiniPay [Amir_Herzberg] [Amir_Herzberg]
minipay 2105 udp MiniPay [Amir_Herzberg] [Amir_Herzberg]
mzap 2106 tcp MZAP [Dave_Thaler_2] [Dave_Thaler_2]
mzap 2106 udp MZAP [Dave_Thaler_2] [Dave_Thaler_2]
bintec-admin 2107 tcp BinTec Admin [Thomas_Schmidt] [Thomas_Schmidt]
bintec-admin 2107 udp BinTec Admin [Thomas_Schmidt] [Thomas_Schmidt]
comcam 2108 tcp Comcam [Don_Gilbreath] [Don_Gilbreath]
comcam 2108 udp Comcam [Don_Gilbreath] [Don_Gilbreath]
ergolight 2109 tcp Ergolight [Jindra_Ryvola] [Jindra_Ryvola]
ergolight 2109 udp Ergolight [Jindra_Ryvola] [Jindra_Ryvola]
umsp 2110 tcp UMSP [Alexander_Bogdanov_2] [Alexander_Bogdanov_2]
umsp 2110 udp UMSP [Alexander_Bogdanov_2] [Alexander_Bogdanov_2]
dsatp 2111 tcp OPNET Dynamic Sampling Agent Transaction Protocol [OPNET_Technologies_Inc] [Edward_Macomber] 2011-09-21
dsatp 2111 udp OPNET Dynamic Sampling Agent Transaction Protocol [OPNET_Technologies_Inc] [Edward_Macomber] 2011-09-21
idonix-metanet 2112 tcp Idonix MetaNet [Paul_Harrison] [Paul_Harrison]
idonix-metanet 2112 udp Idonix MetaNet [Paul_Harrison] [Paul_Harrison]
hsl-storm 2113 tcp HSL StoRM [Jost_Faganel] [Jost_Faganel]
hsl-storm 2113 udp HSL StoRM [Jost_Faganel] [Jost_Faganel]
ariascribe 2114 tcp Classical Music Meta-Data Access and Enhancement [Aria_Scribe_Software_Ltd] [Michael_Levy] 2018-02-05
ariascribe 2114 udp Classical Music Meta-Data Access and Enhancement [Aria_Scribe_Software_Ltd] [Michael_Levy] 2018-02-05
kdm 2115 tcp Key Distribution Manager [Mike_Little] [Mike_Little]
kdm 2115 udp Key Distribution Manager [Mike_Little] [Mike_Little]
ccowcmr 2116 tcp CCOWCMR [Mark_Morwood] [Mark_Morwood]
ccowcmr 2116 udp CCOWCMR [Mark_Morwood] [Mark_Morwood]
mentaclient 2117 tcp MENTACLIENT
mentaclient 2117 udp MENTACLIENT
mentaserver 2118 tcp MENTASERVER [Ilan_Shlosberg] [Ilan_Shlosberg]
mentaserver 2118 udp MENTASERVER [Ilan_Shlosberg] [Ilan_Shlosberg]
gsigatekeeper 2119 tcp GSIGATEKEEPER [Steve_Tuecke] [Steve_Tuecke]
gsigatekeeper 2119 udp GSIGATEKEEPER [Steve_Tuecke] [Steve_Tuecke]
qencp 2120 tcp Quick Eagle Networks CP [Santa_Dasu] [Santa_Dasu]
qencp 2120 udp Quick Eagle Networks CP [Santa_Dasu] [Santa_Dasu]
scientia-ssdb 2121 tcp SCIENTIA-SSDB [SYSTEMS_MANAGER] [SYSTEMS_MANAGER]
scientia-ssdb 2121 udp SCIENTIA-SSDB [SYSTEMS_MANAGER] [SYSTEMS_MANAGER]
caupc-remote 2122 tcp CauPC Remote Control [Environics_Oy] [Environics_Oy]
caupc-remote 2122 udp CauPC Remote Control [Environics_Oy] [Environics_Oy]
gtp-control 2123 tcp GTP-Control Plane (3GPP) [Alessio_Casati] [Alessio_Casati]
gtp-control 2123 udp GTP-Control Plane (3GPP) [Alessio_Casati] [Alessio_Casati]
elatelink 2124 tcp ELATELINK [Tim_Lawrence] [Tim_Lawrence]
elatelink 2124 udp ELATELINK [Tim_Lawrence] [Tim_Lawrence]
lockstep 2125 tcp LOCKSTEP [Karl_Forster] [Karl_Forster]
lockstep 2125 udp LOCKSTEP [Karl_Forster] [Karl_Forster]
pktcable-cops 2126 tcp PktCable-COPS [Glenn_Russell] [Glenn_Russell]
pktcable-cops 2126 udp PktCable-COPS [Glenn_Russell] [Glenn_Russell]
index-pc-wb 2127 tcp INDEX-PC-WB [James_David_Fisher] [James_David_Fisher]
index-pc-wb 2127 udp INDEX-PC-WB [James_David_Fisher] [James_David_Fisher]
net-steward 2128 tcp Net Steward Control [Martin_Norman] [Martin_Norman]
net-steward 2128 udp Net Steward Control [Martin_Norman] [Martin_Norman]
cs-live 2129 tcp cs-live.com [Matt_Lachance] [Matt_Lachance]
cs-live 2129 udp cs-live.com [Matt_Lachance] [Matt_Lachance]
xds 2130 tcp XDS [Peter_Zurich] [Peter_Zurich]
xds 2130 udp XDS [Peter_Zurich] [Peter_Zurich]
avantageb2b 2131 tcp Avantageb2b [Avi_Software] [Avi_Software]
avantageb2b 2131 udp Avantageb2b [Avi_Software] [Avi_Software]
solera-epmap 2132 tcp SoleraTec End Point Map [Mark_Armstrong] [Mark_Armstrong]
solera-epmap 2132 udp SoleraTec End Point Map [Mark_Armstrong] [Mark_Armstrong]
zymed-zpp 2133 tcp ZYMED-ZPP [Gregg_Welker] [Gregg_Welker]
zymed-zpp 2133 udp ZYMED-ZPP [Gregg_Welker] [Gregg_Welker]
avenue 2134 tcp AVENUE [Jason_Cater] [Jason_Cater]
avenue 2134 udp AVENUE [Jason_Cater] [Jason_Cater]
gris 2135 tcp Grid Resource Information Server [Steve_Tuecke] [Steve_Tuecke]

Contact Information

ID Name Organization Contact URI Last Updated
[Alessio_Casati] Alessio Casati mailto:a.casati&computer.org
[Alexander_Bogdanov_2] Alexander Bogdanov mailto:alexander_bgd&softhome.net
[Amir_Herzberg] Amir Herzberg mailto:amirh&vnet.ibm.com
[Amir_Peless] Amir Peless mailto:amirp&radware.co.il
[Aria_Scribe_Software_Ltd] Aria Scribe Software Ltd mailto:scribe&ariascribe.com 2018-02-05
[Avi_Software] Avi Software mailto:srobert&logava.com
[Christian_Grothoff] Christian Grothoff mailto:grothoff&gnunet.org 2017-11-16
[Dave_Thaler_2] Dave Thaler mailto:dthaler&microsoft.com
[Don_Gilbreath] Don Gilbreath mailto:don&comcam.net 2002-09
[Edward_Macomber] Edward Macomber OPNET Technologies Inc mailto:tmacomber&opnet.com 2011-09-21
[Environics_Oy] Environics Oy mailto:pasi.nuutinmaki&environics.fi
[Eugene_Frenkel] Eugene Frenkel mailto:eugene&ada-usa.com 2005-11
[Glenn_Russell] Glenn Russell mailto:grussell&cablelabs.com
[Greg_Hudson] Greg Hudson mailto:zephyr-bugs&mit.edu
[Gregg_Welker] Gregg Welker mailto:greggw&zmi.com
[Henry_Houh] Henry Houh mailto:hhouh&nbxcorp.com
[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
[Ilan_Shlosberg] Ilan Shlosberg mailto:ilan&mentasoftware.com
[James_David_Fisher] James David Fisher mailto:jfisher1&avaya.com
[Jason_Cater] Jason Cater mailto:jason&ncsmags.com
[Jeffrey_Szczepanski] Jeffrey Szczepanski mailto:jrs&inscitek.com 2005-02
[Jindra_Ryvola] Jindra Ryvola mailto:jryvola&ledalite.com
[Joseph_Mathew] Joseph Mathew mailto:mjoseph&dosa.cisco.com
[Jost_Faganel] Jost Faganel mailto:jost.faganel&hermes.si
[Karl_Forster] Karl Forster mailto:kforster&lockstep.com
[Kevin_Bentley] Kevin Bentley mailto:Kevin&outrage.com
[Mark_Armstrong] Mark Armstrong mailto:Mark.Armstrong&soleratec.com 2005-12
[Mark_Morwood] Mark Morwood mailto:markm&sentillion.com
[Martin_Norman] Martin Norman mailto:martin&ndl.co.uk
[Matt_Lachance] Matt Lachance mailto:matt&cs-live.com
[Maya_Zimerman] Maya Zimerman mailto:mayaz&radware.co.il
[Michael_Levy] Michael Levy mailto:scribe&ariascribe.com 2018-01-24
[Mike_Little] Mike Little mailto:mike.little&gdc4s.com
[OPNET_Technologies_Inc] OPNET Technologies Inc mailto:tmacomber&opnet.com 2011-09-21
[Paul_Harrison] Paul Harrison mailto:paulh&idonix.co.uk
[Peter_Zurich] Peter Zurich mailto:pbz&lowpft.com
[Rudi_Chiarito] Rudi Chiarito mailto:nutello&sweetness.com
[SYSTEMS_MANAGER] SYSTEMS MANAGER mailto:systems-manager&scientia.com
[Santa_Dasu] Santa Dasu mailto:Santa_Dasu&quickeagle.com
[Steve_Tuecke] Steve Tuecke mailto:tuecke&mcs.anl.gov
[Thomas_Schmidt] Thomas Schmidt mailto:ts&bintec.de
[Tim_Lawrence] Tim Lawrence mailto:lawrence&tao-group.com
[Wolfgang_Rupprecht] Wolfgang Rupprecht mailto:wolfgang&wsrcc.com
[Zygmunt_Wiercioch] Zygmunt Wiercioch mailto:zyg&jetform.com