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
lnvmaps 2284 tcp LNVMAPS
lnvmaps 2284 udp LNVMAPS
lnvmailmon 2285 tcp LNVMAILMON [John_Payne] [John_Payne]
lnvmailmon 2285 udp LNVMAILMON [John_Payne] [John_Payne]
nas-metering 2286 tcp NAS-Metering [Steven_Sawkins] [Steven_Sawkins]
nas-metering 2286 udp NAS-Metering [Steven_Sawkins] [Steven_Sawkins]
dna 2287 tcp DNA [Tung_Nguyen] [Tung_Nguyen]
dna 2287 udp DNA [Tung_Nguyen] [Tung_Nguyen]
netml 2288 tcp NETML [Jochen_Hansmeyer] [Jochen_Hansmeyer]
netml 2288 udp NETML [Jochen_Hansmeyer] [Jochen_Hansmeyer]
dict-lookup 2289 tcp Lookup dict server [William_Fernando_Mat] [William_Fernando_Mat] 2005-01
dict-lookup 2289 udp Lookup dict server [William_Fernando_Mat] [William_Fernando_Mat] 2005-01
sonus-logging 2290 tcp Sonus Logging Services [Adwait_Sathe] [Adwait_Sathe] 2005-08
sonus-logging 2290 udp Sonus Logging Services [Adwait_Sathe] [Adwait_Sathe] 2005-08
eapsp 2291 tcp EPSON Advanced Printer Share Protocol [SEIKO_EPSON] [SEIKO_EPSON] 2006-06
eapsp 2291 udp EPSON Advanced Printer Share Protocol [SEIKO_EPSON] [SEIKO_EPSON] 2006-06
mib-streaming 2292 tcp Sonus Element Management Services [Linda_Lin] [Linda_Lin] 2006-08
mib-streaming 2292 udp Sonus Element Management Services [Linda_Lin] [Linda_Lin] 2006-08
npdbgmngr 2293 tcp Network Platform Debug Manager [Robert_Byrne] [Robert_Byrne] 2006-09
npdbgmngr 2293 udp Network Platform Debug Manager [Robert_Byrne] [Robert_Byrne] 2006-09
konshus-lm 2294 tcp Konshus License Manager (FLEX) [Francois_Painchaud] [Francois_Painchaud]
konshus-lm 2294 udp Konshus License Manager (FLEX) [Francois_Painchaud] [Francois_Painchaud]
advant-lm 2295 tcp Advant License Manager [Lars_Goran_Magnusson] [Lars_Goran_Magnusson]
advant-lm 2295 udp Advant License Manager [Lars_Goran_Magnusson] [Lars_Goran_Magnusson]
theta-lm 2296 tcp Theta License Manager (Rainbow) [David_Thompson] [David_Thompson]
theta-lm 2296 udp Theta License Manager (Rainbow) [David_Thompson] [David_Thompson]
d2k-datamover1 2297 tcp D2K DataMover 1
d2k-datamover1 2297 udp D2K DataMover 1
d2k-datamover2 2298 tcp D2K DataMover 2 [Eric_Lan] [Eric_Lan]
d2k-datamover2 2298 udp D2K DataMover 2 [Eric_Lan] [Eric_Lan]
pc-telecommute 2299 tcp PC Telecommute [John_Daniel_Bonamico] [John_Daniel_Bonamico]
pc-telecommute 2299 udp PC Telecommute [John_Daniel_Bonamico] [John_Daniel_Bonamico]
cvmmon 2300 tcp CVMMON [Roger_Kumpf] [Roger_Kumpf]
cvmmon 2300 udp CVMMON [Roger_Kumpf] [Roger_Kumpf]
cpq-wbem 2301 tcp Compaq HTTP [Scott_Shaffer] [Scott_Shaffer]
cpq-wbem 2301 udp Compaq HTTP [Scott_Shaffer] [Scott_Shaffer]
binderysupport 2302 tcp Bindery Support [Narasimha_Rao_N] [Narasimha_Rao_N]
binderysupport 2302 udp Bindery Support [Narasimha_Rao_N] [Narasimha_Rao_N]
proxy-gateway 2303 tcp Proxy Gateway [Paul_Funk] [Paul_Funk]
proxy-gateway 2303 udp Proxy Gateway [Paul_Funk] [Paul_Funk]
attachmate-uts 2304 tcp Attachmate UTS [George_Gianelos] [George_Gianelos]
attachmate-uts 2304 udp Attachmate UTS [George_Gianelos] [George_Gianelos]
mt-scaleserver 2305 tcp MT ScaleServer [Paul_Glaubitz] [Paul_Glaubitz]
mt-scaleserver 2305 udp MT ScaleServer [Paul_Glaubitz] [Paul_Glaubitz]
tappi-boxnet 2306 tcp TAPPI BoxNet [Richard_Spartz] [Richard_Spartz]
tappi-boxnet 2306 udp TAPPI BoxNet [Richard_Spartz] [Richard_Spartz]
pehelp 2307 tcp pehelp [Jens_Kilian] [Jens_Kilian]
pehelp 2307 udp pehelp [Jens_Kilian] [Jens_Kilian]
sdhelp 2308 tcp sdhelp [Annette_Klecha] [Annette_Klecha]
sdhelp 2308 udp sdhelp [Annette_Klecha] [Annette_Klecha]
sdserver 2309 tcp SD Server
sdserver 2309 udp SD Server
sdclient 2310 tcp SD Client [Jeurgen_Broesamle] [Jeurgen_Broesamle]
sdclient 2310 udp SD Client [Jeurgen_Broesamle] [Jeurgen_Broesamle]
messageservice 2311 tcp Message Service
messageservice 2311 udp Message Service
wanscaler 2312 tcp WANScaler Communication Service [Allen_Samuels] [Allen_Samuels] 2006-11
wanscaler 2312 udp WANScaler Communication Service [Allen_Samuels] [Allen_Samuels] 2006-11
iapp 2313 tcp IAPP (Inter Access Point Protocol) [Henri_Moelard] [Henri_Moelard]
iapp 2313 udp IAPP (Inter Access Point Protocol) [Henri_Moelard] [Henri_Moelard]
cr-websystems 2314 tcp CR WebSystems [Robin_Giese] [Robin_Giese]
cr-websystems 2314 udp CR WebSystems [Robin_Giese] [Robin_Giese]
precise-sft 2315 tcp Precise Sft. [Michael_Landwehr] [Michael_Landwehr]
precise-sft 2315 udp Precise Sft. [Michael_Landwehr] [Michael_Landwehr]
sent-lm 2316 tcp SENT License Manager [Pisharath_Krishnan] [Pisharath_Krishnan]
sent-lm 2316 udp SENT License Manager [Pisharath_Krishnan] [Pisharath_Krishnan]
attachmate-g32 2317 tcp Attachmate G32 [Bryce_Bhatnagar] [Bryce_Bhatnagar]
attachmate-g32 2317 udp Attachmate G32 [Bryce_Bhatnagar] [Bryce_Bhatnagar]
cadencecontrol 2318 tcp Cadence Control [Buck_Caldwell] [Buck_Caldwell]
cadencecontrol 2318 udp Cadence Control [Buck_Caldwell] [Buck_Caldwell]
infolibria 2319 tcp InfoLibria [Chris_Chiotasso] [Chris_Chiotasso]
infolibria 2319 udp InfoLibria [Chris_Chiotasso] [Chris_Chiotasso]
siebel-ns 2320 tcp Siebel NS [Gilberto_Arnaiz] [Gilberto_Arnaiz]
siebel-ns 2320 udp Siebel NS [Gilberto_Arnaiz] [Gilberto_Arnaiz]
rdlap 2321 tcp RDLAP [Robert_Wiebe] [Robert_Wiebe]
rdlap 2321 udp RDLAP [Robert_Wiebe] [Robert_Wiebe]
ofsd 2322 tcp ofsd
ofsd 2322 udp ofsd
3d-nfsd 2323 tcp 3d-nfsd [Mike_Sherrill] [Mike_Sherrill]
3d-nfsd 2323 udp 3d-nfsd [Mike_Sherrill] [Mike_Sherrill]
cosmocall 2324 tcp Cosmocall [Steve_Dellutri] [Steve_Dellutri]
cosmocall 2324 udp Cosmocall [Steve_Dellutri] [Steve_Dellutri]
ansysli 2325 tcp ANSYS Licensing Interconnect [Suzanne_Lorrin] [Suzanne_Lorrin] Modified: 27 October 2008
ansysli 2325 udp ANSYS Licensing Interconnect [Suzanne_Lorrin] [Suzanne_Lorrin] Modified: 27 October 2008
idcp 2326 tcp IDCP [Keisokugiken_Corp] [Keisokugiken_Corp]
idcp 2326 udp IDCP [Keisokugiken_Corp] [Keisokugiken_Corp]
xingcsm 2327 tcp xingcsm [Dave_Spencer] [Dave_Spencer]
xingcsm 2327 udp xingcsm [Dave_Spencer] [Dave_Spencer]
netrix-sftm 2328 tcp Netrix SFTM [Garrett_Herschleb] [Garrett_Herschleb]
netrix-sftm 2328 udp Netrix SFTM [Garrett_Herschleb] [Garrett_Herschleb]
nvd 2329 tcp NVD [Peter_Weyman] [Peter_Weyman]
nvd 2329 udp NVD [Peter_Weyman] [Peter_Weyman]
tscchat 2330 tcp TSCCHAT [Mike_Jackson] [Mike_Jackson]
tscchat 2330 udp TSCCHAT [Mike_Jackson] [Mike_Jackson]
agentview 2331 tcp AGENTVIEW [Ram_Iyer] [Ram_Iyer]
agentview 2331 udp AGENTVIEW [Ram_Iyer] [Ram_Iyer]
rcc-host 2332 tcp RCC Host [Martin_Shoemaker] [Martin_Shoemaker]
rcc-host 2332 udp RCC Host [Martin_Shoemaker] [Martin_Shoemaker]
snapp 2333 tcp SNAPP [Dan_Burrows] [Dan_Burrows] 2009-09-25
snapp 2333 udp SNAPP [Dan_Burrows] [Dan_Burrows] 2009-09-25
ace-client 2334 tcp ACE Client Auth

Contact Information

ID Name Organization Contact URI Last Updated
[Adwait_Sathe] Adwait Sathe mailto:asathe&sonusnet.com 2005-08
[Allen_Samuels] Allen Samuels mailto:allen.samuels&citrix.com 2006-11
[Annette_Klecha] Annette Klecha mailto:annette_klecha&bbn.hp.com
[Bryce_Bhatnagar] Bryce Bhatnagar mailto:BRYCEBH&attachmate.com
[Buck_Caldwell] Buck Caldwell mailto:buck_c&polygon.com
[Chris_Chiotasso] Chris Chiotasso mailto:cchiotasso&infolibria.com
[Dan_Burrows] Dan Burrows mailto:dburrows&overlandstorage.com 2009-09-25
[Dave_Spencer] Dave Spencer mailto:dspencer&xingtech.com
[David_Thompson] David Thompson mailto:theta&theta-ent.com
[Eric_Lan] Eric Lan mailto:elan&d2k.com
[Francois_Painchaud] Francois Painchaud mailto:fpainchaud&konshus.com
[Garrett_Herschleb] Garrett Herschleb mailto:garrett&netrix.com
[George_Gianelos] George Gianelos mailto:Georgegi&attachmate.com
[Gilberto_Arnaiz] Gilberto Arnaiz mailto:garnaiz&siebel.com
[Henri_Moelard] Henri Moelard mailto:moelard&lucent.com
[Jens_Kilian] Jens Kilian mailto:jensk&hpbeo82.bbn.hp.com
[Jeurgen_Broesamle] Jeurgen Broesamle mailto:juergb&bbn.hp.com
[Jochen_Hansmeyer] Jochen Hansmeyer mailto:cjh&krypton.de
[John_Daniel_Bonamico] John Daniel Bonamico mailto:jbonamico&symantec.com
[John_Payne] John Payne mailto:jpayne&lotus.com
[Keisokugiken_Corp] Keisokugiken Corp. mailto:adda&kgc.co.jp
[Lars_Goran_Magnusson] Lars-Goran Magnusson mailto:lars-goran.magnusson&seisy.mail.abb.com
[Linda_Lin] Linda Lin mailto:llin&sonusnet.com 2006-08
[Martin_Shoemaker] Martin Shoemaker mailto:shoemakerml&rapistan.com
[Michael_Landwehr] Michael Landwehr mailto:mikel&precisesoft.co.il
[Mike_Jackson] Mike Jackson mailto:mhjack&tscnet.com
[Mike_Sherrill] Mike Sherrill mailto:sherrill&commvault.com
[Narasimha_Rao_N] Narasimha Rao N. mailto:nnarasimharao&novell.com
[Paul_Funk] Paul Funk mailto:paul&funk.com
[Paul_Glaubitz] Paul Glaubitz mailto:Paul.Glaubitz&mt.com
[Peter_Weyman] Peter Weyman mailto:pjweyman&noblenet.com
[Pisharath_Krishnan] Pisharath Krishnan mailto:krishnan&axis-inc.com
[Ram_Iyer] Ram Iyer mailto:ram&aaccorp.com
[Richard_Spartz] Richard Spartz mailto:rspartz&alliancetechnical.com
[Robert_Byrne] Robert Byrne mailto:robert.byrne&ie.abb.com 2006-09
[Robert_Wiebe] Robert Wiebe mailto:crw010&email.mot.com
[Robin_Giese] Robin Giese mailto:rgiese&peddie.org
[Roger_Kumpf] Roger Kumpf mailto:kumpf&cup.hp.com
[SEIKO_EPSON] SEIKO EPSON mailto:APD.admin&exc.epson.co.jp 2006-06
[Scott_Shaffer] Scott Shaffer mailto:scott.shaffer&hp.com
[Steve_Dellutri] Steve Dellutri
[Steven_Sawkins] Steven Sawkins mailto:ssawkins&symantec.com
[Suzanne_Lorrin] Suzanne Lorrin mailto:suzanne.lorrin&ansys.com
[Tung_Nguyen] Tung Nguyen mailto:dash&ricochet.net
[William_Fernando_Mat] William Fernando Maton Sotomayor mailto:wfms&acm.org 2005-01