Internet Assigned Numbers Authority

Service Name and Transport Protocol Port Number Registry

Last Updated
2024-12-20
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
creativeserver 3364 tcp Creative Server
creativeserver 3364 udp Creative Server
contentserver 3365 tcp Content Server
contentserver 3365 udp Content Server
creativepartnr 3366 tcp Creative Partner [Jesus_Ortiz_2] [Jesus_Ortiz_2]
creativepartnr 3366 udp Creative Partner [Jesus_Ortiz_2] [Jesus_Ortiz_2]
satvid-datalnk 3367-3371 Satellite Video Data Link [Scott_Engel] [Scott_Engel]
tip2 3372 tcp TIP 2 [Keith_Evans] [Keith_Evans]
tip2 3372 udp TIP 2 [Keith_Evans] [Keith_Evans]
lavenir-lm 3373 tcp Lavenir License Manager [Marius_Matioc] [Marius_Matioc]
lavenir-lm 3373 udp Lavenir License Manager [Marius_Matioc] [Marius_Matioc]
cluster-disc 3374 tcp Cluster Disc [Jeff_Hughes] [Jeff_Hughes]
cluster-disc 3374 udp Cluster Disc [Jeff_Hughes] [Jeff_Hughes]
vsnm-agent 3375 tcp VSNM Agent [Venkat_Rangan] [Venkat_Rangan]
vsnm-agent 3375 udp VSNM Agent [Venkat_Rangan] [Venkat_Rangan]
cdbroker 3376 tcp CD Broker [Moon_Ho_Chung] [Moon_Ho_Chung]
cdbroker 3376 udp CD Broker [Moon_Ho_Chung] [Moon_Ho_Chung]
cogsys-lm 3377 tcp Cogsys Network License Manager [Simon_Chinnick] [Simon_Chinnick]
cogsys-lm 3377 udp Cogsys Network License Manager [Simon_Chinnick] [Simon_Chinnick]
wsicopy 3378 tcp WSICOPY [James_Overby] [James_Overby]
wsicopy 3378 udp WSICOPY [James_Overby] [James_Overby]
socorfs 3379 tcp SOCORFS [Hugo_Charbonneau] [Hugo_Charbonneau]
socorfs 3379 udp SOCORFS [Hugo_Charbonneau] [Hugo_Charbonneau]
sns-channels 3380 tcp SNS Channels [Shekar_Pasumarthi] [Shekar_Pasumarthi]
sns-channels 3380 udp SNS Channels [Shekar_Pasumarthi] [Shekar_Pasumarthi]
geneous 3381 tcp Geneous [Nick_de_Smith] [Nick_de_Smith]
geneous 3381 udp Geneous [Nick_de_Smith] [Nick_de_Smith]
fujitsu-neat 3382 tcp Fujitsu Network Enhanced Antitheft function [Markku_Viima] [Markku_Viima]
fujitsu-neat 3382 udp Fujitsu Network Enhanced Antitheft function [Markku_Viima] [Markku_Viima]
esp-lm 3383 tcp Enterprise Software Products License Manager [George_Rudy] [George_Rudy]
esp-lm 3383 udp Enterprise Software Products License Manager [George_Rudy] [George_Rudy]
hp-clic 3384 tcp Cluster Management Services [Rajesh_Srinivasaragh] [Rajesh_Srinivasaragh]
hp-clic 3384 udp Hardware Management [Rajesh_Srinivasaragh] [Rajesh_Srinivasaragh]
qnxnetman 3385 tcp qnxnetman [Michael_Hunter] [Michael_Hunter]
qnxnetman 3385 udp qnxnetman [Michael_Hunter] [Michael_Hunter]
gprs-data 3386 tcp GPRS Data
gprs-sig 3386 udp GPRS SIG [Ansgar_Bergmann] [Ansgar_Bergmann]
backroomnet 3387 tcp Back Room Net [Clayton_Wilkinson] [Clayton_Wilkinson]
backroomnet 3387 udp Back Room Net [Clayton_Wilkinson] [Clayton_Wilkinson]
cbserver 3388 tcp CB Server [Allen_Wei] [Allen_Wei]
cbserver 3388 udp CB Server [Allen_Wei] [Allen_Wei]
ms-wbt-server 3389 tcp MS WBT Server [Jordan_Marchese] [Jordan_Marchese] 2022-11-03
ms-wbt-server 3389 udp MS WBT Server [Jordan_Marchese] [Jordan_Marchese]
dsc 3390 tcp Distributed Service Coordinator [Charles_Honton] [Charles_Honton]
dsc 3390 udp Distributed Service Coordinator [Charles_Honton] [Charles_Honton]
savant 3391 tcp SAVANT [Andy_Bruce] [Andy_Bruce]
savant 3391 udp SAVANT [Andy_Bruce] [Andy_Bruce]
efi-lm 3392 tcp EFI License Management [Ross_E_Greinke] [Ross_E_Greinke]
efi-lm 3392 udp EFI License Management [Ross_E_Greinke] [Ross_E_Greinke]
d2k-tapestry1 3393 tcp D2K Tapestry Client to Server
d2k-tapestry1 3393 udp D2K Tapestry Client to Server
d2k-tapestry2 3394 tcp D2K Tapestry Server to Server [Eric_Lan] [Eric_Lan]
d2k-tapestry2 3394 udp D2K Tapestry Server to Server [Eric_Lan] [Eric_Lan]
dyna-lm 3395 tcp Dyna License Manager (Elam) [Anjana_Iyer] [Anjana_Iyer]
dyna-lm 3395 udp Dyna License Manager (Elam) [Anjana_Iyer] [Anjana_Iyer]
printer-agent 3396 tcp Printer Agent

IANA assigned this well-formed service name as a replacement for "printer_agent".
[Devon_Taylor] [Devon_Taylor]
printer_agent 3396 tcp Printer Agent [Devon_Taylor] [Devon_Taylor] This entry is an alias to "printer-agent". This entry is now historic, not usable for use with many common service discovery mechanisms.
printer-agent 3396 udp Printer Agent

IANA assigned this well-formed service name as a replacement for "printer_agent".
[Devon_Taylor] [Devon_Taylor]
printer_agent 3396 udp Printer Agent [Devon_Taylor] [Devon_Taylor] This entry is an alias to "printer-agent". This entry is now historic, not usable for use with many common service discovery mechanisms.
cloanto-lm 3397 tcp Cloanto License Manager [Takeo_Sato] [Takeo_Sato] 2010-04-30
cloanto-lm 3397 udp Cloanto License Manager [Takeo_Sato] [Takeo_Sato] 2010-04-30
mercantile 3398 tcp Mercantile [Erik_Kragh_Jensen] [Erik_Kragh_Jensen]
mercantile 3398 udp Mercantile [Erik_Kragh_Jensen] [Erik_Kragh_Jensen]
csms 3399 tcp CSMS
csms 3399 udp CSMS
csms2 3400 tcp CSMS2 [Markus_Michels_2] [Markus_Michels_2]
csms2 3400 udp CSMS2 [Markus_Michels_2] [Markus_Michels_2]
filecast 3401 tcp filecast [Eden_Sherry] [Eden_Sherry]
filecast 3401 udp filecast [Eden_Sherry] [Eden_Sherry]
fxaengine-net 3402 tcp FXa Engine Network Port [Lucas_Alonso] [Lucas_Alonso] 2002-02
fxaengine-net 3402 udp FXa Engine Network Port [Lucas_Alonso] [Lucas_Alonso] 2002-02
3403 De-registered 2006-10-27
3404 Removed 2002-05-01
nokia-ann-ch1 3405 tcp Nokia Announcement ch 1
nokia-ann-ch1 3405 udp Nokia Announcement ch 1
nokia-ann-ch2 3406 tcp Nokia Announcement ch 2 [Morteza_Kalhour] [Morteza_Kalhour] 2002-02
nokia-ann-ch2 3406 udp Nokia Announcement ch 2 [Morteza_Kalhour] [Morteza_Kalhour] 2002-02
ldap-admin 3407 tcp LDAP admin server port [Stephen_Tsun_2] [Stephen_Tsun_2] 2002-02
ldap-admin 3407 udp LDAP admin server port [Stephen_Tsun_2] [Stephen_Tsun_2] 2002-02
BESApi 3408 tcp BES Api Port [Colin_Griffiths] [Colin_Griffiths] 2002-02
BESApi 3408 udp BES Api Port [Colin_Griffiths] [Colin_Griffiths] 2002-02
networklens 3409 tcp NetworkLens Event Port
networklens 3409 udp NetworkLens Event Port
networklenss 3410 tcp NetworkLens SSL Event [Greg_Bailey] [Greg_Bailey] 2002-02
networklenss 3410 udp NetworkLens SSL Event [Greg_Bailey] [Greg_Bailey] 2002-02
biolink-auth 3411 tcp BioLink Authenteon server [BioLink_Support] [BioLink_Support] 2002-02
biolink-auth 3411 udp BioLink Authenteon server [BioLink_Support] [BioLink_Support] 2002-02
xmlblaster 3412 tcp xmlBlaster [Marcel_Ruff] [Marcel_Ruff] 2002-02
xmlblaster 3412 udp xmlBlaster [Marcel_Ruff] [Marcel_Ruff] 2002-02
svnet 3413 tcp SpecView Networking [Richard_Dickins] [Richard_Dickins] 2002-02
svnet 3413 udp SpecView Networking [Richard_Dickins] [Richard_Dickins] 2002-02
wip-port 3414 tcp BroadCloud WIP Port
wip-port 3414 udp BroadCloud WIP Port
bcinameservice 3415 tcp BCI Name Service [Dennis_Parker] [Dennis_Parker] 2002-02
bcinameservice 3415 udp BCI Name Service [Dennis_Parker] [Dennis_Parker] 2002-02
commandport 3416 tcp AirMobile IS Command Port [Mike_Klein] [Mike_Klein] 2002-02
commandport 3416 udp AirMobile IS Command Port [Mike_Klein] [Mike_Klein] 2002-02
csvr 3417 tcp ConServR file translation [Albert_Leung] [Albert_Leung] 2002-02
csvr 3417 udp ConServR file translation [Albert_Leung] [Albert_Leung] 2002-02
rnmap 3418 tcp Remote nmap [Tuomo_Makinen] [Tuomo_Makinen] 2002-02
rnmap 3418 udp Remote nmap [Tuomo_Makinen] [Tuomo_Makinen] 2002-02

Contact Information

ID Name Contact URI Last Updated
[Albert_Leung] Albert Leung mailto:aleung&biscom.com 2006-04
[Allen_Wei] Allen Wei mailto:Allen_Wei&arborsoft.com
[Andy_Bruce] Andy Bruce mailto:franklin_yah&yahoo.com
[Anjana_Iyer] Anjana Iyer mailto:anjana&dyna.com
[Ansgar_Bergmann] Ansgar Bergmann mailto:Ansgar.Bergmann&etsi.fr
[BioLink_Support] BioLink Support mailto:reginfo&biolinkusa.com 2002-02
[Charles_Honton] Charles Honton mailto:chas&honton.org
[Clayton_Wilkinson] Clayton Wilkinson mailto:cwilkinson&carreker.com
[Colin_Griffiths] Colin Griffiths mailto:colin.griffiths&interlinksoftware.com 2002-02
[Dennis_Parker] Dennis Parker mailto:dparker&broadcloud.com 2002-02
[Devon_Taylor] Devon Taylor mailto:dtaylor&novell.com
[Eden_Sherry] Eden Sherry mailto:eden&pair.com
[Eric_Lan] Eric Lan mailto:elan&d2k.com
[Erik_Kragh_Jensen] Erik Kragh Jensen mailto:kragh&inet.uni2.dk
[George_Rudy] George Rudy mailto:george&entsoft.com
[Greg_Bailey] Greg Bailey mailto:gbailey&lxpro.com 2003-04
[Hugo_Charbonneau] Hugo Charbonneau
[James_Overby] James Overby
[Jeff_Hughes] Jeff Hughes mailto:Jeff.Hughes&columbiasc.ncr.com
[Jesus_Ortiz_2] Jesus Ortiz mailto:Jesus_A._Ortiz&notes.emotion.com
[Jordan_Marchese] Jordan Marchese mailto:jordanm&microsoft.com 2022-11-03
[Keith_Evans] Keith Evans mailto:keith&loc252.tandem.com
[Lucas_Alonso] Lucas Alonso mailto:luke&demiurgestudios.com 2002-02
[Marcel_Ruff] Marcel Ruff mailto:mr&marcelruff.info 2002-02
[Marius_Matioc] Marius Matioc mailto:marius&lavenir.com
[Markku_Viima] Markku Viima mailto:markku.viima&team.icl.se
[Markus_Michels_2] Markus Michels mailto:mmi&cedros.com
[Michael_Hunter] Michael Hunter mailto:mphunter&qnx.com
[Mike_Klein] Mike Klein mailto:m.klein&motorla.com 2002-02
[Moon_Ho_Chung] Moon Ho Chung mailto:mchung&esps.com
[Morteza_Kalhour] Morteza Kalhour mailto:Morteza.Kalhour&nokia.com 2002-02
[Nick_de_Smith] Nick de Smith mailto:nick&desmith.net
[Rajesh_Srinivasaragh] Rajesh Srinivasaraghavan mailto:srajesh&cup.hp.com
[Richard_Dickins] Richard Dickins mailto:rad&specview.com 2002-02
[Ross_E_Greinke] Ross E. Greinke mailto:greinker&execpc.com
[Scott_Engel] Scott Engel mailto:ScottX_Engel&ccm.jf.intel.com
[Shekar_Pasumarthi] Shekar Pasumarthi mailto:shekarp&firstfloor.com
[Simon_Chinnick] Simon Chinnick mailto:support&cogsys.co.uk
[Stephen_Tsun_2] Stephen Tsun mailto:stsun&calient.net 2002-02
[Takeo_Sato] Takeo Sato mailto:ts-iana&cloanto.net 2010-04-30
[Tuomo_Makinen] Tuomo Makinen mailto:tmakinen&pp.htv.fi 2002-02
[Venkat_Rangan] Venkat Rangan mailto:venkatr&vitalsigns.com