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
MobilitySrv 6997 udp Mobility XE Protocol [Joseph_T_Savarese] [Joseph_T_Savarese] 2007-06
iatp-highpri 6998 tcp IATP-highPri [John_Murphy] [John_Murphy]
iatp-highpri 6998 udp IATP-highPri [John_Murphy] [John_Murphy]
iatp-normalpri 6999 tcp IATP-normalPri [John_Murphy] [John_Murphy]
iatp-normalpri 6999 udp IATP-normalPri [John_Murphy] [John_Murphy]
afs3-fileserver 7000 tcp file server itself
afs3-fileserver 7000 udp file server itself
afs3-callback 7001 tcp callbacks to cache managers Known Unauthorized Use on port 7001
afs3-callback 7001 udp callbacks to cache managers Known Unauthorized Use on port 7001
afs3-prserver 7002 tcp users & groups database Known Unauthorized Use on port 7002
afs3-prserver 7002 udp users & groups database Known Unauthorized Use on port 7002
afs3-vlserver 7003 tcp volume location database
afs3-vlserver 7003 udp volume location database
afs3-kaserver 7004 tcp AFS/Kerberos authentication service
afs3-kaserver 7004 udp AFS/Kerberos authentication service
afs3-volser 7005 tcp volume managment server Known Unauthorized Use on port 7005
afs3-volser 7005 udp volume managment server Known Unauthorized Use on port 7005
afs3-errors 7006 tcp error interpretation service
afs3-errors 7006 udp error interpretation service
afs3-bos 7007 tcp basic overseer process
afs3-bos 7007 udp basic overseer process
afs3-update 7008 tcp server-to-server updater
afs3-update 7008 udp server-to-server updater
afs3-rmtsys 7009 tcp remote cache manager service
afs3-rmtsys 7009 udp remote cache manager service
ups-onlinet 7010 tcp onlinet uninterruptable power supplies [Jim_Thompson] [Jim_Thompson]
ups-onlinet 7010 udp onlinet uninterruptable power supplies [Jim_Thompson] [Jim_Thompson]
talon-disc 7011 tcp Talon Discovery Port [Jim_Thompson] [Jim_Thompson] Known Unauthorized Use on 7011
talon-disc 7011 udp Talon Discovery Port [Jim_Thompson] [Jim_Thompson] Known Unauthorized Use on 7011
talon-engine 7012 tcp Talon Engine [Jim_Thompson] [Jim_Thompson] Known Unauthorized Use on 7011
talon-engine 7012 udp Talon Engine [Jim_Thompson] [Jim_Thompson] Known Unauthorized Use on 7011
microtalon-dis 7013 tcp Microtalon Discovery [Jim_Thompson] [Jim_Thompson]
microtalon-dis 7013 udp Microtalon Discovery [Jim_Thompson] [Jim_Thompson]
microtalon-com 7014 tcp Microtalon Communications [Jim_Thompson] [Jim_Thompson]
microtalon-com 7014 udp Microtalon Communications [Jim_Thompson] [Jim_Thompson]
talon-webserver 7015 tcp Talon Webserver [Jim_Thompson] [Jim_Thompson]
talon-webserver 7015 udp Talon Webserver [Jim_Thompson] [Jim_Thompson]
spg 7016 tcp SPG Controls Carrier [SPG_Controls_Ltd] [Steve_Barton_2] 2017-03-27
spg 7016 udp SPG Controls Carrier [SPG_Controls_Ltd] [Steve_Barton_2] 2017-03-27
grasp 7017 tcp GeneRic Autonomic Signaling Protocol [IESG] [IETF_Chair] 2017-04-28 2017-07-20 [RFC8990]
grasp 7017 udp GeneRic Autonomic Signaling Protocol [IESG] [IETF_Chair] 2017-04-28 2017-07-20 [RFC8990]
fisa-svc 7018 tcp FISA Service [FAUCONNET_Ingenierie] [FAUCONNET_Ingenierie] 2011-05-19
7018 udp Reserved
doceri-ctl 7019 tcp doceri drawing service control [Paul_Brown] [Paul_Brown] 2011-04-27
doceri-view 7019 udp doceri drawing service screen view [Paul_Brown] [Paul_Brown] 2011-04-27
dpserve 7020 tcp DP Serve [Allan_Stanley] [Allan_Stanley]
dpserve 7020 udp DP Serve [Allan_Stanley] [Allan_Stanley]
dpserveadmin 7021 tcp DP Serve Admin [Allan_Stanley] [Allan_Stanley]
dpserveadmin 7021 udp DP Serve Admin [Allan_Stanley] [Allan_Stanley]
ctdp 7022 tcp CT Discovery Protocol [James_Kirkwood] [James_Kirkwood] 2005-06
ctdp 7022 udp CT Discovery Protocol [James_Kirkwood] [James_Kirkwood] 2005-06
ct2nmcs 7023 tcp Comtech T2 NMCS [Bryan_Wilcutt] [Bryan_Wilcutt] 2005-06
ct2nmcs 7023 udp Comtech T2 NMCS [Bryan_Wilcutt] [Bryan_Wilcutt] 2005-06
vmsvc 7024 tcp Vormetric service [Tom_Boyle] [Tom_Boyle] 2005-06
vmsvc 7024 udp Vormetric service [Tom_Boyle] [Tom_Boyle] 2005-06
vmsvc-2 7025 tcp Vormetric Service II [Tom_Boyle] [Tom_Boyle] 2005-06
vmsvc-2 7025 udp Vormetric Service II [Tom_Boyle] [Tom_Boyle] 2005-06
loreji-panel 7026 tcp Loreji Webhosting Panel [J.A._Smit] [DALTCORE] 2018-02-21
7026 udp Reserved
7027-7029 Unassigned
op-probe 7030 tcp ObjectPlanet probe [Bjorn_Jarle_Kvande] [Bjorn_Jarle_Kvande] 2002-04
op-probe 7030 udp ObjectPlanet probe [Bjorn_Jarle_Kvande] [Bjorn_Jarle_Kvande] 2002-04
iposplanet 7031 tcp IPOSPLANET retailing multi devices protocol [Fabrice_Paget] [Fabrice_Paget] 2012-10-23
7031 udp Reserved
7032-7039 Unassigned
7040 tcp Reserved
quest-disc 7040 udp Quest application level network service discovery [Quest_Software] [Henrik_Johnson] 2012-04-09
7041-7069 Unassigned
arcp 7070 tcp ARCP [Jude_George] [Jude_George]
arcp 7070 udp ARCP [Jude_George] [Jude_George]
iwg1 7071 tcp IWGADTS Aircraft Housekeeping Message [Don_Sullivan] [Don_Sullivan] 2010-02-16
iwg1 7071 udp IWGADTS Aircraft Housekeeping Message [Don_Sullivan] [Don_Sullivan] 2010-02-16
iba-cfg 7072 tcp iba Device Configuration Protocol [iba_AG] [Alexander_Melamed] 2018-02-12
iba-cfg-disc 7072 udp iba Device Configuration Protocol [iba_AG] [Alexander_Melamed] 2018-02-12
martalk 7073 tcp MarTalk protocol [Mahr_GmbH_Göttingen] [Kevin_Bube] 2013-09-02
7073 udp Reserved
7074-7079 Unassigned
empowerid 7080 tcp EmpowerID Communication [Matthew_Whited] [Matthew_Whited] 2008-01-16
empowerid 7080 udp EmpowerID Communication [Matthew_Whited] [Matthew_Whited] 2008-01-16
7081-7087 Unassigned
7088 tcp Reserved
zixi-transport 7088 udp Zixi live video transport protocol [Zixi] [Igor_Ratner] 2015-11-16
7089-7094 Unassigned
jdp-disc 7095 udp Java Discovery Protocol [OpenJDK] [Florian_Weimer] 2013-03-12
7095 tcp Reserved
7096-7098 Unassigned
lazy-ptop 7099 tcp lazy-ptop [Guy_Keren] [Guy_Keren]
lazy-ptop 7099 udp lazy-ptop [Guy_Keren] [Guy_Keren]
font-service 7100 tcp X Font Service [Stephen_Gildea] [Stephen_Gildea]
font-service 7100 udp X Font Service [Stephen_Gildea] [Stephen_Gildea]
elcn 7101 tcp Embedded Light Control Network [Michael_Scarito] [Michael_Scarito] 2007-02
elcn 7101 udp Embedded Light Control Network [Michael_Scarito] [Michael_Scarito] 2007-02
7102-7106 Unassigned
7107 tcp Reserved
aes-x170 7107 udp AES-X170 [Richard_Foss] [Richard_Foss] 2011-02-10
7108-7116 Unassigned
rothaga 7117 tcp Encrypted chat and file transfer service [Arcadian_Computers] [Jonathan_Pollock] 2016-05-10
7117 udp Reserved
7118-7120 Unassigned
virprot-lm 7121 tcp Virtual Prototypes License Manager [Victor_Galis] [Victor_Galis]
virprot-lm 7121 udp Virtual Prototypes License Manager [Victor_Galis] [Victor_Galis]

Contact Information

ID Name Organization Contact URI Last Updated
[Alexander_Melamed] Alexander Melamed mailto:alexander.melamed&iba-ag.com 2018-02-12
[Allan_Stanley] Allan Stanley mailto:allan&hummingbird.com
[Arcadian_Computers] Arcadian Computers mailto:support&arcadiancomputers.com 2016-05-10
[Bjorn_Jarle_Kvande] Bjorn Jarle Kvande mailto:bjorn&objectplanet.com 2002-04
[Bryan_Wilcutt] Bryan Wilcutt mailto:bwilcutt&comtechefdata.com 2005-06
[DALTCORE] DALTCORE mailto:Info&daltcore.com 2018-02-21
[Don_Sullivan] Don Sullivan mailto:donald.v.sullivan&nasa.gov 2010-02-16
[Fabrice_Paget] Fabrice Paget mailto:onefrench&me.com 2012-10-23
[FAUCONNET_Ingenierie] FAUCONNET Ingénierie SA mailto:dev&fisa.fr 2011-05-19
[Florian_Weimer] Florian Weimer mailto:fweimer&redhat.com 2013-03-12
[Guy_Keren] Guy Keren mailto:Guy_Keren&mail.stil.scitex.com
[Henrik_Johnson] Henrik Johnson Quest Software mailto:henrik.johnson&quest.com 2012-04-09
[iba_AG] iba AG mailto:info&iba-ag.com 2018-02-12
[IESG] IESG mailto:iesg&ietf.org
[IETF_Chair] IETF Chair IETF mailto:chair&ietf.org
[Igor_Ratner] Igor Ratner mailto:igor&zixi.com 2015-11-16
[J.A._Smit] J.A. Smit mailto:rsmit&daltcore.com 2018-02-21
[James_Kirkwood] James Kirkwood mailto:james.kirkwood&controltechniques.com 2005-06
[Jim_Thompson] Jim Thompson mailto:jim.thompson&powerware.com
[John_Murphy] John Murphy mailto:john.m.murphy&mci.com
[Jonathan_Pollock] Jonathan Pollock mailto:jon&arcadiancomputers.com 2016-05-10
[Joseph_T_Savarese] Joseph T Savarese mailto:joesa&nmwco.com 2007-06
[Jude_George] Jude George mailto:jude&nas.nasa.gov
[Kevin_Bube] Kevin Bube Mahr GmbH Göttingen mailto:kevin.bube&mahr.de 2013-09-02
[Mahr_GmbH_Göttingen] Mahr GmbH Göttingen mailto:info&mahr.de 2013-09-02
[Matthew_Whited] Matthew Whited mailto:matt&thedotnetfactory.com 2008-01-16
[Michael_Scarito] Michael Scarito mailto:ms&mit.edu 2007-02
[OpenJDK] OpenJDK mailto:discuss&openjdk.java.net 2013-03-12
[Paul_Brown] Paul Brown mailto:pbrown&spcontrols.com 2011-04-27
[Quest_Software] Quest Software mailto:iana.quest-disc&quest.com 2012-04-09
[Richard_Foss] Richard Foss mailto:r.foss&ru.ac.za 2011-02-10
[SPG_Controls_Ltd] SPG Controls Ltd mailto:steveb&spgcontrols.com 2017-03-27
[Stephen_Gildea] Stephen Gildea mailto:gildea&lcs.mit.edu
[Steve_Barton_2] Steve Barton SPG Controls Ltd mailto:steveb&spgcontrols.com 2017-03-27
[Tom_Boyle] Tom Boyle mailto:tboyle&vormetric.com 2005-06
[Victor_Galis] Victor Galis mailto:galis&satchmo.virtualprototypes.ca
[Zixi] Zixi mailto:igor&zixi.com 2015-11-16