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
mbl-battd 4153 udp MBL Remote Battery Monitoring [Claudio_Procida] [Claudio_Procida] 2007-05
atlinks 4154 tcp atlinks device discovery [Scott_Griepentrog] [Scott_Griepentrog] 2002-10
atlinks 4154 udp atlinks device discovery [Scott_Griepentrog] [Scott_Griepentrog] 2002-10
bzr 4155 tcp Bazaar version control system [Martin_Pool_2] [Martin_Pool_2] 2007-02
bzr 4155 udp Bazaar version control system [Martin_Pool_2] [Martin_Pool_2] 2007-02
stat-results 4156 tcp STAT Results
stat-results 4156 udp STAT Results
stat-scanner 4157 tcp STAT Scanner Control
stat-scanner 4157 udp STAT Scanner Control
stat-cc 4158 tcp STAT Command Center [Darwin_Ammala] [Darwin_Ammala] 2007-03
stat-cc 4158 udp STAT Command Center [Darwin_Ammala] [Darwin_Ammala] 2007-03
nss 4159 tcp Network Security Service [Dave_Wierbowski] [Dave_Wierbowski] 2006-08
nss 4159 udp Network Security Service [Dave_Wierbowski] [Dave_Wierbowski] 2006-08
jini-discovery 4160 tcp Jini Discovery [Mark_Hodapp] [Mark_Hodapp]
jini-discovery 4160 udp Jini Discovery [Mark_Hodapp] [Mark_Hodapp]
omscontact 4161 tcp OMS Contact
omscontact 4161 udp OMS Contact
omstopology 4162 tcp OMS Topology [David_Page] [David_Page] 2005-08
omstopology 4162 udp OMS Topology [David_Page] [David_Page] 2005-08
silverpeakpeer 4163 tcp Silver Peak Peer Protocol [Damon_Ennis] [Damon_Ennis] 2007-03
silverpeakpeer 4163 udp Silver Peak Peer Protocol [Damon_Ennis] [Damon_Ennis] 2007-03
silverpeakcomm 4164 tcp Silver Peak Communication Protocol [Damon_Ennis] [Damon_Ennis] 2007-03
silverpeakcomm 4164 udp Silver Peak Communication Protocol [Damon_Ennis] [Damon_Ennis] 2007-03
altcp 4165 tcp ArcLink over Ethernet [Dmitry_Brant] [Dmitry_Brant] 2007-03
altcp 4165 udp ArcLink over Ethernet [Dmitry_Brant] [Dmitry_Brant] 2007-03
joost 4166 tcp Joost Peer to Peer Protocol [Colm_MacCarthaigh] [Colm_MacCarthaigh] 2007-04
joost 4166 udp Joost Peer to Peer Protocol [Colm_MacCarthaigh] [Colm_MacCarthaigh] 2007-04
ddgn 4167 tcp DeskDirect Global Network [Laurie_Charlwood] [Laurie_Charlwood] 2007-08-22
ddgn 4167 udp DeskDirect Global Network [Laurie_Charlwood] [Laurie_Charlwood] 2007-08-22
pslicser 4168 tcp PrintSoft License Server [David_Weisgerber] [David_Weisgerber] 2007-09-27
pslicser 4168 udp PrintSoft License Server [David_Weisgerber] [David_Weisgerber] 2007-09-27
iadt 4169 tcp Automation Drive Interface Transport [Paul_Suhler] [Paul_Suhler] 2008-02-15
iadt-disc 4169 udp Internet ADT Discovery Protocol [Paul_A_Suhler] [Paul_A_Suhler] 2009-02-06
d-cinema-csp 4170 tcp SMPTE Content Synchonization Protocol [Michael_Karagosian] [Michael_Karagosian] 2008-09-04
4170 udp Reserved
ml-svnet 4171 tcp Maxlogic Supervisor Communication [Taha_Paksu] [Taha_Paksu] 2009-12-21
4171 udp Reserved
pcoip 4172 tcp PC over IP [Teradici] [Jeff_Dillabough] 2009-12-23 2012-03-06
pcoip 4172 udp PC over IP [Teradici] [Jeff_Dillabough] 2009-12-23 2012-03-06
4173 tcp Reserved
mma-discovery 4173 udp MMA Device Discovery [MIDI_Manufacturers_Assoc_Inc] [Tom_White] 2011-11-14
smcluster 4174 tcp StorMagic Cluster Services [Chris_Farey] [Chris_Farey] 2011-03-09
sm-disc 4174 udp StorMagic Discovery [StorMagic_Ltd] [Chris_Farey] 2011-12-16
bccp 4175 tcp Brocade Cluster Communication Protocol [Norival_Figueira] [Norival_Figueira] 2010-04-07
4175 udp Reserved
tl-ipcproxy 4176 tcp Translattice Cluster IPC Proxy [Michael_Lyle] [Michael_Lyle] 2009-11-03
4176 udp Reserved
wello 4177 tcp Wello P2P pubsub service [Christian_Westbrook] [Christian_Westbrook] 2007-11-15
wello 4177 udp Wello P2P pubsub service [Christian_Westbrook] [Christian_Westbrook] 2007-11-15
storman 4178 tcp StorMan [Werner_Guertler] [Werner_Guertler] 2009-05-11
storman 4178 udp StorMan [Werner_Guertler] [Werner_Guertler] 2009-05-11
MaxumSP 4179 tcp Maxum Services [Greg_Stine] [Greg_Stine] 2007-07-05
MaxumSP 4179 udp Maxum Services [Greg_Stine] [Greg_Stine] 2007-07-05
httpx 4180 tcp HTTPX [Paul_McGough] [Paul_McGough] 2007-02
httpx 4180 udp HTTPX [Paul_McGough] [Paul_McGough] 2007-02 2016-01-05
macbak 4181 tcp MacBak [Wes_Peters] [Wes_Peters] 2007-04
macbak 4181 udp MacBak [Wes_Peters] [Wes_Peters] 2007-04
pcptcpservice 4182 tcp Production Company Pro TCP Service [Ben_McNeill] [Ben_McNeill] 2007-05
pcptcpservice 4182 udp Production Company Pro TCP Service [Ben_McNeill] [Ben_McNeill] 2007-05
cyborgnet 4183 tcp CyborgNet communications protocol [Gareth_Nelson] [Gareth_Nelson] 2015-11-13
cyborgnet 4183 udp CyborgNet communications protocol [Gareth_Nelson] [Gareth_Nelson] 2015-11-13
universe-suite 4184 tcp UNIVERSE SUITE MESSAGE SERVICE

IANA assigned this well-formed service name as a replacement for "universe_suite".
[Gary_ANDREWS] [Gary_ANDREWS] 2008-01-07
universe_suite 4184 tcp UNIVERSE SUITE MESSAGE SERVICE [Gary_ANDREWS] [Gary_ANDREWS] 2008-01-07 This entry is an alias to "universe-suite". This entry is now historic, not usable for use with many common service discovery mechanisms.
universe-suite 4184 udp UNIVERSE SUITE MESSAGE SERVICE

IANA assigned this well-formed service name as a replacement for "universe_suite".
[Gary_ANDREWS] [Gary_ANDREWS] 2008-01-07
universe_suite 4184 udp UNIVERSE SUITE MESSAGE SERVICE [Gary_ANDREWS] [Gary_ANDREWS] 2008-01-07 This entry is an alias to "universe-suite". This entry is now historic, not usable for use with many common service discovery mechanisms.
wcpp 4185 tcp Woven Control Plane Protocol [Christopher_LILJENST] [Christopher_LILJENST] 2008-04-14
wcpp 4185 udp Woven Control Plane Protocol [Christopher_LILJENST] [Christopher_LILJENST] 2008-04-14
boxbackupstore 4186 tcp Box Backup Store Service [Chris_Wilson] [Chris_Wilson] 2008-09-11
4186 udp Reserved
csc-proxy 4187 tcp Cascade Proxy

IANA assigned this well-formed service name as a replacement for "csc_proxy".
[Matt_Craighead] [Matt_Craighead] 2008-09-11
csc_proxy 4187 tcp Cascade Proxy [Matt_Craighead] [Matt_Craighead] 2008-09-11 This entry is an alias to "csc-proxy". This entry is now historic, not usable for use with many common service discovery mechanisms.
4187 udp Reserved
vatata 4188 tcp Vatata Peer to Peer Protocol [Song_Jian] [Song_Jian] 2008-09-15
vatata 4188 udp Vatata Peer to Peer Protocol [Song_Jian] [Song_Jian] 2008-09-15
pcep 4189 tcp Path Computation Element Communication Protocol
4189 udp Reserved [RFC5440]
sieve 4190 tcp ManageSieve Protocol
4190 udp Reserved [RFC5804]
4191 tcp Reserved
dsmipv6 4191 udp Dual Stack MIPv6 NAT Traversal [RFC5555]
azeti 4192 tcp Azeti Agent Service [Uwe_Holz] [Uwe_Holz] 2009-11-09
azeti-bd 4192 udp azeti blinddate [Michael_Werski] [Michael_Werski] 2010-02-18
pvxplusio 4193 tcp PxPlus remote file srvr [Mike_King] [Mike_King] 2009-11-09
4193 udp Reserved
spdm 4194 tcp Security Protocol and Data Model [Intel_Corporation] [Eduardo_Cabre] 2022-01-10
4194 udp Reserved
aws-wsp 4195 tcp AWS protocol for cloud remoting solution [Amazon.com_Services_LLC] [Lauren_Townsend] 2020-04-06
aws-wsp 4195 udp AWS protocol for cloud remoting solution [Amazon.com_Services_LLC] [Lauren_Townsend] 2020-04-06
aws-wsp 4195 sctp AWS protocol for cloud remoting solution [Amazon.com_Services_LLC] [Lauren_Townsend] 2020-04-06
aws-wsp 4195 dccp AWS protocol for cloud remoting solution [Amazon.com_Services_LLC] [Lauren_Townsend] 2020-04-06
4196 Unassigned
hctl 4197 tcp Harman HControl Protocol [Harman_International_Industries_Inc] [Darin_Smith] 2017-02-16
hctl 4197 udp Harman HControl Protocol [Harman_International_Industries_Inc] [Darin_Smith] 2017-02-16
4198 Unassigned
eims-admin 4199 tcp EIMS ADMIN [Glenn_Anderson] [Glenn_Anderson]
eims-admin 4199 udp EIMS ADMIN [Glenn_Anderson] [Glenn_Anderson]
d-data 4301 tcp Diagnostic Data
d-data 4301 udp Diagnostic Data
mirrtex 4310 tcp Mir-RT exchange service [Sylvain_Robert] [Sylvain_Robert] 2008-02-14
mirrtex 4310 udp Mir-RT exchange service [Sylvain_Robert] [Sylvain_Robert] 2008-02-14
p6ssmc 4311 tcp P6R Secure Server Management Console [Jim_Susoy] [Jim_Susoy] 2010-01-21

Contact Information

ID Name Organization Contact URI Last Updated
[Amazon.com_Services_LLC] Amazon.com Services LLC mailto:aws-iana&amazon.com 2022-11-07
[Ben_McNeill] Ben McNeill mailto:ben.mcneill&cinexec.com 2007-05
[Chris_Farey] Chris Farey StorMagic Ltd mailto:chris_farey&stormagic.com 2011-12-16
[Chris_Wilson] Chris Wilson mailto:chris+iana&qwirx.com 2008-09-11
[Christian_Westbrook] Christian Westbrook mailto:cw&wellohorld.com 2007-11-15
[Christopher_LILJENST] Christopher LILJENSTOLPE mailto:cdl&asgaard.org 2008-04-14
[Claudio_Procida] Claudio Procida mailto:claudio&emeraldion.it 2007-05
[Colm_MacCarthaigh] Colm MacCarthaigh mailto:colm.maccarthaigh&joost.com 2007-04
[Damon_Ennis] Damon Ennis mailto:damon&silver-peak.com 2007-03
[Darin_Smith] Darin Smith mailto:darin.smith&harman.com 2017-02-16
[Darwin_Ammala] Darwin Ammala mailto:dammala&harris.com 2007-03
[Dave_Wierbowski] Dave Wierbowski mailto:wierbows&us.ibm.com 2006-08
[David_Page] David Page mailto:david.page&sun.com 2005-08
[David_Weisgerber] David Weisgerber mailto:david.weisgerber&printsoft.de 2007-09-27
[Dmitry_Brant] Dmitry Brant mailto:dmitry_brant&lincolnelectric.com 2007-03
[Eduardo_Cabre] Eduardo Cabre Intel Corporation mailto:eduardo.cabre&intel.com 2022-01-10
[Gareth_Nelson] Gareth Nelson mailto:gareth&garethnelson.com 2015-11-13
[Gary_ANDREWS] Gary ANDREWS mailto:gan&orsyp.com 2008-01-07
[Glenn_Anderson] Glenn Anderson mailto:glenn&qualcomm.co.nz
[Greg_Stine] Greg Stine mailto:greg.stine&siemens.com 2007-07-05
[Harman_International_Industries_Inc] Harman International Industries Inc. mailto:darin.smith&harman.com 2017-02-16
[Intel_Corporation] Intel Corporation mailto:eduardo.cabre&intel.com 2022-01-10
[Jeff_Dillabough] Jeff Dillabough Teradici mailto:jdillabough&teradici.com 2012-03-06
[Jim_Susoy] Jim Susoy mailto:jim.susoy&p6r.com 2010-01-21
[Lauren_Townsend] Lauren Townsend Amazon.com Services LLC mailto:townslau&amazon.com 2020-04-06
[Laurie_Charlwood] Laurie Charlwood mailto:laurie.charlwood&printsoft.com 2007-08-22
[Mark_Hodapp] Mark Hodapp mailto:mark.hodapp&sun.com
[Martin_Pool_2] Martin Pool mailto:mbp&canonical.com 2007-02
[Matt_Craighead] Matt Craighead mailto:matt.craighead&conifersystems.com 2008-09-11
[Michael_Karagosian] Michael Karagosian mailto:michael.karagosian&mkpe.com 2008-09-04
[Michael_Lyle] Michael Lyle mailto:protocols&translattice.com 2009-11-03
[Michael_Werski] Michael Werski mailto:michael.werski&azeti.net 2010-02-18
[MIDI_Manufacturers_Assoc_Inc] MIDI Manufacturers Assoc Inc mailto:info&midi.org 2011-11-14
[Mike_King] Mike King mailto:mike.king&pvxplus.com 2009-11-09
[Norival_Figueira] Norival Figueira mailto:nfigueir&brocade.com 2010-04-07
[Paul_A_Suhler] Paul A. Suhler mailto:paul.suhler&quantum.com 2009-02-06
[Paul_McGough] Paul McGough mailto:paulmcgough&yahoo.com 2016-01-05
[Paul_Suhler] Paul Suhler mailto:paul.suhler&quantum.com 2008-02-15
[Scott_Griepentrog] Scott Griepentrog mailto:griepentrogs&atlinks.com 2002-10
[Song_Jian] Song Jian mailto:info&vatata.com 2008-09-15
[StorMagic_Ltd] StorMagic Ltd mailto:chris_farey&stormagic.com 2011-12-16
[Sylvain_Robert] Sylvain Robert mailto:sylvain.robert&datadis.com 2008-02-14
[Taha_Paksu] Taha Paksu mailto:tahapaksu&mavili.com.tr 2009-12-21
[Teradici] Teradici mailto:jdillabough&teradici.com 2012-03-06
[Tom_White] Tom White MIDI Manufacturers Assoc Inc mailto:info&midi.org 2011-11-14
[Uwe_Holz] Uwe Holz mailto:uwe.holz&azeti.net 2009-11-09
[Werner_Guertler] Werner Guertler mailto:werner.guertler&ts.fujitsu.com 2009-05-11
[Wes_Peters] Wes Peters mailto:wes&softweyr.com 2007-04