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
doc1lm 3161 tcp DOC1 License Manager [Greg_Goodson] [Greg_Goodson]
doc1lm 3161 udp DOC1 License Manager [Greg_Goodson] [Greg_Goodson]
sflm 3162 tcp SFLM [System_Administrator] [System_Administrator]
sflm 3162 udp SFLM [System_Administrator] [System_Administrator]
res-sap 3163 tcp RES-SAP [Bob_Janssen] [Bob_Janssen]
res-sap 3163 udp RES-SAP [Bob_Janssen] [Bob_Janssen]
imprs 3164 tcp IMPRS [Lars_Bohn] [Lars_Bohn]
imprs 3164 udp IMPRS [Lars_Bohn] [Lars_Bohn]
newgenpay 3165 tcp Newgenpay Engine Service [Ilan_Zisser] [Ilan_Zisser]
newgenpay 3165 udp Newgenpay Engine Service [Ilan_Zisser] [Ilan_Zisser]
sossecollector 3166 tcp Quest Spotlight Out-Of-Process Collector [Greg_Cottman] [Greg_Cottman] 2008-10-23
sossecollector 3166 udp Quest Spotlight Out-Of-Process Collector [Greg_Cottman] [Greg_Cottman] 2008-10-23
nowcontact 3167 tcp Now Contact Public Server
nowcontact 3167 udp Now Contact Public Server
poweronnud 3168 tcp Now Up-to-Date Public Server [John_Wallace] [John_Wallace]
poweronnud 3168 udp Now Up-to-Date Public Server [John_Wallace] [John_Wallace]
serverview-as 3169 tcp SERVERVIEW-AS
serverview-as 3169 udp SERVERVIEW-AS
serverview-asn 3170 tcp SERVERVIEW-ASN
serverview-asn 3170 udp SERVERVIEW-ASN
serverview-gf 3171 tcp SERVERVIEW-GF
serverview-gf 3171 udp SERVERVIEW-GF
serverview-rm 3172 tcp SERVERVIEW-RM
serverview-rm 3172 udp SERVERVIEW-RM
serverview-icc 3173 tcp SERVERVIEW-ICC [Detlef_Rothe] [Detlef_Rothe] 2009-05-15
serverview-icc 3173 udp SERVERVIEW-ICC [Detlef_Rothe] [Detlef_Rothe] 2009-05-15
armi-server 3174 tcp ARMI Server [Bobby_Martin] [Bobby_Martin]
armi-server 3174 udp ARMI Server [Bobby_Martin] [Bobby_Martin]
t1-e1-over-ip 3175 tcp T1_E1_Over_IP [Mark_Doyle] [Mark_Doyle]
t1-e1-over-ip 3175 udp T1_E1_Over_IP [Mark_Doyle] [Mark_Doyle]
ars-master 3176 tcp ARS Master [Portnoy_Boxman] [Portnoy_Boxman]
ars-master 3176 udp ARS Master [Portnoy_Boxman] [Portnoy_Boxman]
phonex-port 3177 tcp Phonex Protocol [Doug_Grover] [Doug_Grover]
phonex-port 3177 udp Phonex Protocol [Doug_Grover] [Doug_Grover]
radclientport 3178 tcp Radiance UltraEdge Port [Sri_Subramaniam] [Sri_Subramaniam]
radclientport 3178 udp Radiance UltraEdge Port [Sri_Subramaniam] [Sri_Subramaniam]
h2gf-w-2m 3179 tcp H2GF W.2m Handover prot. [Arne_Norefors] [Arne_Norefors]
h2gf-w-2m 3179 udp H2GF W.2m Handover prot. [Arne_Norefors] [Arne_Norefors]
mc-brk-srv 3180 tcp Millicent Broker Server [Steve_Glassman] [Steve_Glassman]
mc-brk-srv 3180 udp Millicent Broker Server [Steve_Glassman] [Steve_Glassman]
bmcpatrolagent 3181 tcp BMC Patrol Agent
bmcpatrolagent 3181 udp BMC Patrol Agent
bmcpatrolrnvu 3182 tcp BMC Patrol Rendezvous [Portnoy_Boxman] [Portnoy_Boxman]
bmcpatrolrnvu 3182 udp BMC Patrol Rendezvous [Portnoy_Boxman] [Portnoy_Boxman]
cops-tls 3183 tcp COPS/TLS [Mark_Stevens] [Mark_Stevens]
cops-tls 3183 udp COPS/TLS [Mark_Stevens] [Mark_Stevens]
apogeex-port 3184 tcp ApogeeX Port [Tom_Nys] [Tom_Nys]
apogeex-port 3184 udp ApogeeX Port [Tom_Nys] [Tom_Nys]
smpppd 3185 tcp SuSE Meta PPPD [Arvin_Schnell] [Arvin_Schnell]
smpppd 3185 udp SuSE Meta PPPD [Arvin_Schnell] [Arvin_Schnell]
iiw-port 3186 tcp IIW Monitor User Port [Corey_Burnett] [Corey_Burnett]
iiw-port 3186 udp IIW Monitor User Port [Corey_Burnett] [Corey_Burnett]
odi-port 3187 tcp Open Design Listen Port [Phivos_Aristides] [Phivos_Aristides]
odi-port 3187 udp Open Design Listen Port [Phivos_Aristides] [Phivos_Aristides]
brcm-comm-port 3188 tcp Broadcom Port [Thomas_L_Johnson] [Thomas_L_Johnson]
brcm-comm-port 3188 udp Broadcom Port [Thomas_L_Johnson] [Thomas_L_Johnson]
pcle-infex 3189 tcp Pinnacle Sys InfEx Port [Anthon_van_der_Neut] [Anthon_van_der_Neut]
pcle-infex 3189 udp Pinnacle Sys InfEx Port [Anthon_van_der_Neut] [Anthon_van_der_Neut]
csvr-proxy 3190 tcp ConServR Proxy
csvr-proxy 3190 udp ConServR Proxy
csvr-sslproxy 3191 tcp ConServR SSL Proxy [Mikhail_Kruk] [Mikhail_Kruk]
csvr-sslproxy 3191 udp ConServR SSL Proxy [Mikhail_Kruk] [Mikhail_Kruk]
firemonrcc 3192 tcp FireMon Revision Control [Michael_Bishop] [Michael_Bishop]
firemonrcc 3192 udp FireMon Revision Control [Michael_Bishop] [Michael_Bishop]
spandataport 3193 tcp SpanDataPort [Jesse_McKay] [Jesse_McKay]
spandataport 3193 udp SpanDataPort [Jesse_McKay] [Jesse_McKay]
magbind 3194 tcp Rockstorm MAG protocol [Jens_Nilsson] [Jens_Nilsson]
magbind 3194 udp Rockstorm MAG protocol [Jens_Nilsson] [Jens_Nilsson]
ncu-1 3195 tcp Network Control Unit
ncu-1 3195 udp Network Control Unit
ncu-2 3196 tcp Network Control Unit [Charlie_Hundre] [Charlie_Hundre]
ncu-2 3196 udp Network Control Unit [Charlie_Hundre] [Charlie_Hundre]
embrace-dp-s 3197 tcp Embrace Device Protocol Server
embrace-dp-s 3197 udp Embrace Device Protocol Server
embrace-dp-c 3198 tcp Embrace Device Protocol Client [Elliot_Schwartz] [Elliot_Schwartz]
embrace-dp-c 3198 udp Embrace Device Protocol Client [Elliot_Schwartz] [Elliot_Schwartz]
dmod-workspace 3199 tcp DMOD WorkSpace [Nick_Plante] [Nick_Plante]
dmod-workspace 3199 udp DMOD WorkSpace [Nick_Plante] [Nick_Plante]
tick-port 3200 tcp Press-sense Tick Port [Boris_Svetlitsky] [Boris_Svetlitsky]
tick-port 3200 udp Press-sense Tick Port [Boris_Svetlitsky] [Boris_Svetlitsky]
cpq-tasksmart 3201 tcp CPQ-TaskSmart [Jackie_Lau] [Jackie_Lau]
cpq-tasksmart 3201 udp CPQ-TaskSmart [Jackie_Lau] [Jackie_Lau]
intraintra 3202 tcp IntraIntra [Matthew_Asham] [Matthew_Asham]
intraintra 3202 udp IntraIntra [Matthew_Asham] [Matthew_Asham]
netwatcher-mon 3203 tcp Network Watcher Monitor
netwatcher-mon 3203 udp Network Watcher Monitor
netwatcher-db 3204 tcp Network Watcher DB Access [Hirokazu_Fujisawa] [Hirokazu_Fujisawa]
netwatcher-db 3204 udp Network Watcher DB Access [Hirokazu_Fujisawa] [Hirokazu_Fujisawa]
isns 3205 tcp iSNS Server Port [RFC4171]
isns 3205 udp iSNS Server Port [RFC4171]
ironmail 3206 tcp IronMail POP Proxy [Mike_Hudack] [Mike_Hudack]
ironmail 3206 udp IronMail POP Proxy [Mike_Hudack] [Mike_Hudack]
vx-auth-port 3207 tcp Veritas Authentication Port [Senthil_Ponnuswamy] [Senthil_Ponnuswamy]
vx-auth-port 3207 udp Veritas Authentication Port [Senthil_Ponnuswamy] [Senthil_Ponnuswamy]
pfu-prcallback 3208 tcp PFU PR Callback [Tetsuharu_Hanada] [Tetsuharu_Hanada]
pfu-prcallback 3208 udp PFU PR Callback [Tetsuharu_Hanada] [Tetsuharu_Hanada]
netwkpathengine 3209 tcp HP OpenView Network Path Engine Server [Anthony_Walker] [Anthony_Walker]
netwkpathengine 3209 udp HP OpenView Network Path Engine Server [Anthony_Walker] [Anthony_Walker]
flamenco-proxy 3210 tcp Flamenco Networks Proxy [Corey_Corrick] [Corey_Corrick]
flamenco-proxy 3210 udp Flamenco Networks Proxy [Corey_Corrick] [Corey_Corrick]
avsecuremgmt 3211 tcp Avocent Secure Management [Brian_S_Stewart] [Brian_S_Stewart]

Contact Information

ID Name Contact URI Last Updated
[Anthon_van_der_Neut] Anthon van der Neut mailto:anthon&mnt.org
[Anthony_Walker] Anthony Walker mailto:anthony_walker&hp.com 2002-03
[Arne_Norefors] Arne Norefors mailto:Arne.Norefors&ericsson.com
[Arvin_Schnell] Arvin Schnell mailto:arvin&suse.de
[Bob_Janssen] Bob Janssen mailto:bob&res.nl
[Bobby_Martin] Bobby Martin mailto:bobbymartin&hotmail.com
[Boris_Svetlitsky] Boris Svetlitsky mailto:boris&press-sense.com
[Brian_S_Stewart] Brian S. Stewart mailto:Brian.Stewart&avocent.com
[Charlie_Hundre] Charlie Hundre mailto:charlie&rdsrv.reco.com.tw
[Corey_Burnett] Corey Burnett mailto:corey.burnett&biopop.com
[Corey_Corrick] Corey Corrick mailto:corey.corrick&flamenconetworks.com
[Detlef_Rothe] Detlef Rothe mailto:detlef.rothe&ts.fujitsu.com 2009-05-15
[Doug_Grover] Doug Grover mailto:dgrover&phonex.com
[Elliot_Schwartz] Elliot Schwartz mailto:elliot&mit.edu
[Greg_Cottman] Greg Cottman mailto:greg.cottman&quest.com 2008-10-23
[Greg_Goodson] Greg Goodson mailto:ggoodson&group1software.co.uk
[Hirokazu_Fujisawa] Hirokazu Fujisawa mailto:fujisawa&pfu.fujitsu.com
[Ilan_Zisser] Ilan Zisser mailto:ilan&newgenpay.com
[Jackie_Lau] Jackie Lau mailto:jackie.lau&compaq.com
[Jens_Nilsson] Jens Nilsson mailto:jens&rockstorm.se
[Jesse_McKay] Jesse McKay mailto:jesse&spandata.com
[John_Wallace] John Wallace mailto:john&nowsoftware.com
[Lars_Bohn] Lars Bohn mailto:Lars.Bohn&nokia.com
[Mark_Doyle] Mark Doyle mailto:mark&engagecom.com
[Mark_Stevens] Mark Stevens mailto:mstevens&ellacoya.com
[Matthew_Asham] Matthew Asham mailto:matthew&asham.ca 2019-11-22
[Michael_Bishop] Michael Bishop mailto:mbishop&fishnetsecurity.com
[Mike_Hudack] Mike Hudack mailto:mike&mhudack.com
[Mikhail_Kruk] Mikhail Kruk mailto:mkruk&biscom.com
[Nick_Plante] Nick Plante mailto:nplante&dmod.com
[Phivos_Aristides] Phivos Aristides mailto:phivos&opendesign.com
[Portnoy_Boxman] Portnoy Boxman mailto:portnoy_boxman&bmc.com 2005-01
[Senthil_Ponnuswamy] Senthil Ponnuswamy mailto:senthil&veritas.com
[Sri_Subramaniam] Sri Subramaniam mailto:sri&radiance.com
[Steve_Glassman] Steve Glassman mailto:steveg&pa.dec.com
[System_Administrator] System Administrator mailto:sysadmin&silvaco.com 2003-06
[Tetsuharu_Hanada] Tetsuharu Hanada mailto:hanada&pfu.fujitsu.com
[Thomas_L_Johnson] Thomas L. Johnson mailto:tjohnson&broadcom.com
[Tom_Nys] Tom Nys mailto:tom.nys.tn&belgium.agfa.com