Internet Assigned Numbers Authority

Service Name and Transport Protocol Port Number Registry

Last Updated
2024-10-15
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
nucleus-sand 1201 tcp Nucleus Sand Database Server [James_Marsh] [James_Marsh]
nucleus-sand 1201 udp Nucleus Sand Database Server [James_Marsh] [James_Marsh]
caiccipc 1202 tcp caiccipc [Vince_Re] [Vince_Re]
caiccipc 1202 udp caiccipc [Vince_Re] [Vince_Re]
ssslic-mgr 1203 tcp License Validation
ssslic-mgr 1203 udp License Validation
ssslog-mgr 1204 tcp Log Request Listener [Eric_Bruno] [Eric_Bruno]
ssslog-mgr 1204 udp Log Request Listener [Eric_Bruno] [Eric_Bruno]
accord-mgc 1205 tcp Accord-MGC [Roni_Even] [Roni_Even]
accord-mgc 1205 udp Accord-MGC [Roni_Even] [Roni_Even]
anthony-data 1206 tcp Anthony Data [Paul_Dollemore] [Paul_Dollemore]
anthony-data 1206 udp Anthony Data [Paul_Dollemore] [Paul_Dollemore]
metasage 1207 tcp MetaSage [Peter_Anvelt] [Peter_Anvelt]
metasage 1207 udp MetaSage [Peter_Anvelt] [Peter_Anvelt]
seagull-ais 1208 tcp SEAGULL AIS [Lee_Breisacher] [Lee_Breisacher]
seagull-ais 1208 udp SEAGULL AIS [Lee_Breisacher] [Lee_Breisacher]
ipcd3 1209 tcp IPCD3 [Mark_Ciskey] [Mark_Ciskey]
ipcd3 1209 udp IPCD3 [Mark_Ciskey] [Mark_Ciskey]
eoss 1210 tcp EOSS [Robert_Armes] [Robert_Armes]
eoss 1210 udp EOSS [Robert_Armes] [Robert_Armes]
groove-dpp 1211 tcp Groove DPP [Ken_Moore] [Ken_Moore]
groove-dpp 1211 udp Groove DPP [Ken_Moore] [Ken_Moore]
lupa 1212 tcp lupa [Barney_Wolff] [Barney_Wolff]
lupa 1212 udp lupa [Barney_Wolff] [Barney_Wolff]
mpc-lifenet 1213 tcp Medtronic/Physio-Control LIFENET [Physio-Control_Inc] [Kevin_Drew] 2014-02-14
mpc-lifenet 1213 udp Medtronic/Physio-Control LIFENET [Physio-Control_Inc] [Kevin_Drew] 2014-02-14
kazaa 1214 tcp KAZAA [Ahti_Heinla] [Ahti_Heinla]
kazaa 1214 udp KAZAA [Ahti_Heinla] [Ahti_Heinla]
scanstat-1 1215 tcp scanSTAT 1.0 [William_Scheding] [William_Scheding]
scanstat-1 1215 udp scanSTAT 1.0 [William_Scheding] [William_Scheding]
etebac5 1216 tcp ETEBAC 5 [Jean_Louis_Barbut] [Jean_Louis_Barbut]
etebac5 1216 udp ETEBAC 5 [Jean_Louis_Barbut] [Jean_Louis_Barbut]
hpss-ndapi 1217 tcp HPSS NonDCE Gateway [Michael_Gleicher] [Michael_Gleicher]
hpss-ndapi 1217 udp HPSS NonDCE Gateway [Michael_Gleicher] [Michael_Gleicher]
aeroflight-ads 1218 tcp AeroFlight-ADs
aeroflight-ads 1218 udp AeroFlight-ADs
aeroflight-ret 1219 tcp AeroFlight-Ret [Eric_Johnson] [Eric_Johnson]
aeroflight-ret 1219 udp AeroFlight-Ret [Eric_Johnson] [Eric_Johnson]
qt-serveradmin 1220 tcp QT SERVER ADMIN [Chris_LeCroy] [Chris_LeCroy]
qt-serveradmin 1220 udp QT SERVER ADMIN [Chris_LeCroy] [Chris_LeCroy]
sweetware-apps 1221 tcp SweetWARE Apps [David_Dunetz] [David_Dunetz]
sweetware-apps 1221 udp SweetWARE Apps [David_Dunetz] [David_Dunetz]
nerv 1222 tcp SNI R&D network [Martin_Freiss] [Martin_Freiss]
nerv 1222 udp SNI R&D network [Martin_Freiss] [Martin_Freiss]
tgp 1223 tcp TrulyGlobal Protocol [Gur_Kimchi] [Gur_Kimchi] 2008-05-20
tgp 1223 udp TrulyGlobal Protocol [Gur_Kimchi] [Gur_Kimchi] 2008-05-20
vpnz 1224 tcp VPNz [Tom_Strack] [Tom_Strack]
vpnz 1224 udp VPNz [Tom_Strack] [Tom_Strack]
slinkysearch 1225 tcp SLINKYSEARCH [Desmond_Chan] [Desmond_Chan]
slinkysearch 1225 udp SLINKYSEARCH [Desmond_Chan] [Desmond_Chan]
stgxfws 1226 tcp STGXFWS [Tetsuya_Shioda] [Tetsuya_Shioda]
stgxfws 1226 udp STGXFWS [Tetsuya_Shioda] [Tetsuya_Shioda]
dns2go 1227 tcp DNS2Go [Deerfield_Communications_Inc] [Mike_Courterier] 2015-07-15
dns2go 1227 udp DNS2Go [Deerfield_Communications_Inc] [Mike_Courterier] 2015-07-15
florence 1228 tcp FLORENCE [Brian_Trammell] [Brian_Trammell]
florence 1228 udp FLORENCE [Brian_Trammell] [Brian_Trammell]
zented 1229 tcp ZENworks Tiered Electronic Distribution [Ty_Ellis] [Ty_Ellis]
zented 1229 udp ZENworks Tiered Electronic Distribution [Ty_Ellis] [Ty_Ellis]
periscope 1230 tcp Periscope [Kevin_Madden] [Kevin_Madden]
periscope 1230 udp Periscope [Kevin_Madden] [Kevin_Madden]
menandmice-lpm 1231 tcp menandmice-lpm [Sigfus_Magnusson] [Sigfus_Magnusson]
menandmice-lpm 1231 udp menandmice-lpm [Sigfus_Magnusson] [Sigfus_Magnusson]
first-defense 1232 tcp Remote systems monitoring [Nexum] [Michael_Fread] 2012-09-21 Microsoft (unoffically) using 1232
first-defense 1232 udp Remote systems monitoring [Nexum] [Michael_Fread] 2012-09-21 Microsoft (unoffically) using 1232
univ-appserver 1233 tcp Universal App Server [Tim_Sent] [Tim_Sent]
univ-appserver 1233 udp Universal App Server [Tim_Sent] [Tim_Sent]
search-agent 1234 tcp Infoseek Search Agent [Jackie_Wu] [Jackie_Wu]
search-agent 1234 udp Infoseek Search Agent [Jackie_Wu] [Jackie_Wu]
mosaicsyssvc1 1235 tcp mosaicsyssvc1 [Brian_Matthews] [Brian_Matthews]
mosaicsyssvc1 1235 udp mosaicsyssvc1 [Brian_Matthews] [Brian_Matthews]
bvcontrol 1236 tcp bvcontrol [Daniel_J_Walsh] [Daniel_J_Walsh]
bvcontrol 1236 udp bvcontrol [Daniel_J_Walsh] [Daniel_J_Walsh]
tsdos390 1237 tcp tsdos390 [Ben_Pracht] [Ben_Pracht]
tsdos390 1237 udp tsdos390 [Ben_Pracht] [Ben_Pracht]
hacl-qs 1238 tcp hacl-qs [Farid_Faez] [Farid_Faez]
hacl-qs 1238 udp hacl-qs [Farid_Faez] [Farid_Faez]
nmsd 1239 tcp NMSD [Yuri_Machkasov] [Yuri_Machkasov]
nmsd 1239 udp NMSD [Yuri_Machkasov] [Yuri_Machkasov]
instantia 1240 tcp Instantia [Ruth_Slater] [Ruth_Slater]
instantia 1240 udp Instantia [Ruth_Slater] [Ruth_Slater]
nessus 1241 tcp nessus [Jordan_Hrycaj] [Jordan_Hrycaj]
nessus 1241 udp nessus [Jordan_Hrycaj] [Jordan_Hrycaj]
nmasoverip 1242 tcp NMAS over IP [Hal_Henderson] [Hal_Henderson]
nmasoverip 1242 udp NMAS over IP [Hal_Henderson] [Hal_Henderson]
serialgateway 1243 tcp SerialGateway [Stephen_LaValley] [Stephen_LaValley]
serialgateway 1243 udp SerialGateway [Stephen_LaValley] [Stephen_LaValley]
isbconference1 1244 tcp isbconference1
isbconference1 1244 udp isbconference1
isbconference2 1245 tcp isbconference2 [Arnold_Dittmann] [Arnold_Dittmann]
isbconference2 1245 udp isbconference2 [Arnold_Dittmann] [Arnold_Dittmann]
payrouter 1246 tcp payrouter [David_Wilson] [David_Wilson]
payrouter 1246 udp payrouter [David_Wilson] [David_Wilson]
visionpyramid 1247 tcp VisionPyramid [Gavin_Hutchinson] [Gavin_Hutchinson]
visionpyramid 1247 udp VisionPyramid [Gavin_Hutchinson] [Gavin_Hutchinson]
hermes 1248 tcp hermes
hermes 1248 udp hermes
mesavistaco 1249 tcp Mesa Vista Co [Rick_LaBanca] [Rick_LaBanca]
mesavistaco 1249 udp Mesa Vista Co [Rick_LaBanca] [Rick_LaBanca]
swldy-sias 1250 tcp swldy-sias [Peter_E_Williams] [Peter_E_Williams]
swldy-sias 1250 udp swldy-sias [Peter_E_Williams] [Peter_E_Williams]
servergraph 1251 tcp servergraph [Lindsay_Morris] [Lindsay_Morris]

Contact Information

ID Name Organization Contact URI Last Updated
[Ahti_Heinla] Ahti Heinla mailto:ahti&ahti.bluemoon.ee 2002-06
[Arnold_Dittmann] Arnold Dittmann mailto:dittmann&isbcad.de
[Barney_Wolff] Barney Wolff mailto:barney&databus.com
[Ben_Pracht] Ben Pracht mailto:ben.pracht&tivoli.com
[Brian_Matthews] Brian Matthews mailto:bmatthews&mosaicsystems.com
[Brian_Trammell] Brian Trammell mailto:btrammell&iventurelab.com
[Chris_LeCroy] Chris LeCroy mailto:lecroy&apple.com
[Daniel_J_Walsh] Daniel J Walsh mailto:dwalsh&bindview.com
[David_Dunetz] David Dunetz mailto:david&sweetware.com
[David_Wilson] David Wilson mailto:dwilson&integral-ie.com
[Deerfield_Communications_Inc] Deerfield Communications Inc. mailto:mikec&deerfield.net 2015-07-15
[Desmond_Chan] Desmond Chan mailto:deschan&prismedia.com
[Eric_Bruno] Eric Bruno mailto:ebruno&solution-soft.com
[Eric_Johnson] Eric Johnson mailto:eric&gruver.net
[Farid_Faez] Farid Faez mailto:farid_faez&hp.com
[Gavin_Hutchinson] Gavin Hutchinson mailto:gavinh&visionlogistics.com
[Gur_Kimchi] Gur Kimchi mailto:gkimchi&microsoft.com 2008-05-20
[Hal_Henderson] Hal Henderson mailto:hhenders&novell.com
[Jackie_Wu] Jackie Wu mailto:jackiew&infoseek.com
[James_Marsh] James Marsh mailto:James_T_Marsh&hotmail.com
[Jean_Louis_Barbut] Jean-Louis Barbut mailto:etebac5&gsit.fr
[Jordan_Hrycaj] Jordan Hrycaj mailto:jordan&mjh.teddy-net.com
[Ken_Moore] Ken Moore mailto:kmoore&groove.net
[Kevin_Drew] Kevin Drew Physio-Control, Inc. mailto:kevin.c.drew&physio-control.com 2014-02-14
[Kevin_Madden] Kevin Madden mailto:Kevin&emailxtras.com
[Lee_Breisacher] Lee Breisacher mailto:lbreisacher&seagullsw.com
[Lindsay_Morris] Lindsay Morris mailto:lmorris&servergraph.com
[Mark_Ciskey] Mark Ciskey mailto:mlciskey&plato.com
[Martin_Freiss] Martin Freiss mailto:freiss.pad&sni.de
[Michael_Fread] Michael Fread Nexum, Inc. mailto:mfread&nexuminc.com 2012-09-21
[Michael_Gleicher] Michael Gleicher mailto:mgleicher&comcast.net
[Mike_Courterier] Mike Courterier Deerfield Communications Inc. mailto:mikec&deerfield.net 2015-07-15
[Nexum] Nexum, Inc. mailto:mfread&nexuminc.com 2012-09-21
[Paul_Dollemore] Paul Dollemore mailto:pauld&anthonydata.com
[Peter_Anvelt] Peter Anvelt mailto:panvelt&xnai.com
[Peter_E_Williams] Peter E Williams mailto:peter.williams&smallworld-us.com
[Physio-Control_Inc] Physio-Control, Inc. mailto:kevin.c.drew&physio-control.com 2014-02-14
[Rick_LaBanca] Rick LaBanca mailto:rel&mesasys.com
[Robert_Armes] Robert Armes mailto:rarmes&axarte.com
[Roni_Even] Roni Even mailto:roni_e&accord.co.il
[Ruth_Slater] Ruth Slater mailto:ruth.slater&ideagen.co.uk
[Sigfus_Magnusson] Sigfus Magnusson mailto:sigfusm&menandmice.com
[Stephen_LaValley] Stephen LaValley mailto:lavalley&lucent.com
[Tetsuya_Shioda] Tetsuya Shioda mailto:tetsuya&saint.nm.fujitsu.co.jp
[Tim_Sent] Tim Sent mailto:tim.sent&systemsarchitects.com
[Tom_Strack] Tom Strack mailto:TSTRACK&advnw.com
[Ty_Ellis] Ty Ellis mailto:tellis&novell.com 2006-05
[Vince_Re] Vince Re mailto:Vincent.Re&cai.com
[William_Scheding] William Scheding mailto:wls&wls.org
[Yuri_Machkasov] Yuri Machkasov mailto:yuri&ptc.com