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
ott 2428 udp One Way Trip Time [Greg_Troxel] [Greg_Troxel]
ft-role 2429 tcp FT-ROLE [Doug_Boone] [Doug_Boone]
ft-role 2429 udp FT-ROLE [Doug_Boone] [Doug_Boone]
venus 2430 tcp venus
venus 2430 udp venus
venus-se 2431 tcp venus-se
venus-se 2431 udp venus-se
codasrv 2432 tcp codasrv
codasrv 2432 udp codasrv
codasrv-se 2433 tcp codasrv-se [Robert_Watson] [Robert_Watson]
codasrv-se 2433 udp codasrv-se [Robert_Watson] [Robert_Watson]
pxc-epmap 2434 tcp pxc-epmap [Jun_Nakamura] [Jun_Nakamura]
pxc-epmap 2434 udp pxc-epmap [Jun_Nakamura] [Jun_Nakamura]
optilogic 2435 tcp OptiLogic [Clark_Williams] [Clark_Williams]
optilogic 2435 udp OptiLogic [Clark_Williams] [Clark_Williams]
topx 2436 tcp TOP/X [Dragos_Pop] [Dragos_Pop]
topx 2436 udp TOP/X [Dragos_Pop] [Dragos_Pop]
unicontrol 2437 tcp UniControl [Ing_Markus_Huemer] [Ing_Markus_Huemer]
unicontrol 2437 udp UniControl [Ing_Markus_Huemer] [Ing_Markus_Huemer]
msp 2438 tcp MSP [Evan_Caves] [Evan_Caves]
msp 2438 udp MSP [Evan_Caves] [Evan_Caves]
sybasedbsynch 2439 tcp SybaseDBSynch [Dave_Neudoerffer] [Dave_Neudoerffer]
sybasedbsynch 2439 udp SybaseDBSynch [Dave_Neudoerffer] [Dave_Neudoerffer]
spearway 2440 tcp Spearway Lockers [Pierre_Frisch] [Pierre_Frisch]
spearway 2440 udp Spearway Lockers [Pierre_Frisch] [Pierre_Frisch]
pvsw-inet 2441 tcp Pervasive I*net Data Server [Chuck_Talk] [Chuck_Talk]
pvsw-inet 2441 udp Pervasive I*net Data Server [Chuck_Talk] [Chuck_Talk]
netangel 2442 tcp Netangel [Ladislav_Baranyay] [Ladislav_Baranyay]
netangel 2442 udp Netangel [Ladislav_Baranyay] [Ladislav_Baranyay]
powerclientcsf 2443 tcp PowerClient Central Storage Facility [Brian_Klassen] [Brian_Klassen]
powerclientcsf 2443 udp PowerClient Central Storage Facility [Brian_Klassen] [Brian_Klassen]
btpp2sectrans 2444 tcp BT PP2 Sectrans [Ian_Daniels] [Ian_Daniels]
btpp2sectrans 2444 udp BT PP2 Sectrans [Ian_Daniels] [Ian_Daniels]
dtn1 2445 tcp DTN1 [Bob_Gaddie] [Bob_Gaddie]
dtn1 2445 udp DTN1 [Bob_Gaddie] [Bob_Gaddie]
bues-service 2446 tcp bues_service

IANA assigned this well-formed service name as a replacement for "bues_service".
[Leonhard_Diekmann] [Leonhard_Diekmann]
bues_service 2446 tcp bues_service [Leonhard_Diekmann] [Leonhard_Diekmann] This entry is an alias to "bues-service". This entry is now historic, not usable for use with many common service discovery mechanisms.
bues-service 2446 udp bues_service

IANA assigned this well-formed service name as a replacement for "bues_service".
[Leonhard_Diekmann] [Leonhard_Diekmann]
bues_service 2446 udp bues_service [Leonhard_Diekmann] [Leonhard_Diekmann] This entry is an alias to "bues-service". This entry is now historic, not usable for use with many common service discovery mechanisms.
ovwdb 2447 tcp OpenView NNM daemon [Eric_Pulsipher_2] [Eric_Pulsipher_2]
ovwdb 2447 udp OpenView NNM daemon [Eric_Pulsipher_2] [Eric_Pulsipher_2]
hpppssvr 2448 tcp hpppsvr [Bridgette_Landers] [Bridgette_Landers]
hpppssvr 2448 udp hpppsvr [Bridgette_Landers] [Bridgette_Landers]
ratl 2449 tcp RATL [Paul_Greenfield] [Paul_Greenfield]
ratl 2449 udp RATL [Paul_Greenfield] [Paul_Greenfield]
netadmin 2450 tcp netadmin
netadmin 2450 udp netadmin
netchat 2451 tcp netchat [Julian_Mehnle] [Julian_Mehnle]
netchat 2451 udp netchat [Julian_Mehnle] [Julian_Mehnle]
snifferclient 2452 tcp SnifferClient [Amy_Weaver_2] [Amy_Weaver_2]
snifferclient 2452 udp SnifferClient [Amy_Weaver_2] [Amy_Weaver_2]
madge-ltd 2453 tcp madge ltd [Mark_Lyall] [Mark_Lyall]
madge-ltd 2453 udp madge ltd [Mark_Lyall] [Mark_Lyall]
indx-dds 2454 tcp IndX-DDS [Paul_Carmichael] [Paul_Carmichael]
indx-dds 2454 udp IndX-DDS [Paul_Carmichael] [Paul_Carmichael]
wago-io-system 2455 tcp WAGO-IO-SYSTEM [Jorg_Hoffmann] [Jorg_Hoffmann]
wago-io-system 2455 udp WAGO-IO-SYSTEM [Jorg_Hoffmann] [Jorg_Hoffmann]
altav-remmgt 2456 tcp altav-remmgt [Gary_M_Allen] [Gary_M_Allen]
altav-remmgt 2456 udp altav-remmgt [Gary_M_Allen] [Gary_M_Allen]
rapido-ip 2457 tcp Rapido_IP [Man_Shuen_Cheung] [Man_Shuen_Cheung]
rapido-ip 2457 udp Rapido_IP [Man_Shuen_Cheung] [Man_Shuen_Cheung]
griffin 2458 tcp griffin [Tom_Taylor] [Tom_Taylor]
griffin 2458 udp griffin [Tom_Taylor] [Tom_Taylor]
xrpl 2459 tcp Community [David_Schwartz] [David_Schwartz] 2019-08-09
xrpl 2459 udp Community [David_Schwartz] [David_Schwartz] 2019-08-09
ms-theater 2460 tcp ms-theater [Anton_Kucer] [Anton_Kucer]
ms-theater 2460 udp ms-theater [Anton_Kucer] [Anton_Kucer]
qadmifoper 2461 tcp qadmifoper
qadmifoper 2461 udp qadmifoper
qadmifevent 2462 tcp qadmifevent [Pekka_Takaranta] [Pekka_Takaranta]
qadmifevent 2462 udp qadmifevent [Pekka_Takaranta] [Pekka_Takaranta]
lsi-raid-mgmt 2463 tcp LSI RAID Management [NetApp] [MSW_architecture_team] 2014-07-18
lsi-raid-mgmt 2463 udp LSI RAID Management [NetApp] [MSW_architecture_team] 2014-07-18
direcpc-si 2464 tcp DirecPC SI [Doug_Dillon] [Doug_Dillon]
direcpc-si 2464 udp DirecPC SI [Doug_Dillon] [Doug_Dillon]
lbm 2465 tcp Load Balance Management
lbm 2465 udp Load Balance Management
lbf 2466 tcp Load Balance Forwarding [Kazuhiro_Koide] [Kazuhiro_Koide]
lbf 2466 udp Load Balance Forwarding [Kazuhiro_Koide] [Kazuhiro_Koide]
high-criteria 2467 tcp High Criteria [Konstantin_Iavid] [Konstantin_Iavid]
high-criteria 2467 udp High Criteria [Konstantin_Iavid] [Konstantin_Iavid]
qip-msgd 2468 tcp qip_msgd [Mike_Morgan] [Mike_Morgan]
qip-msgd 2468 udp qip_msgd [Mike_Morgan] [Mike_Morgan]
mti-tcs-comm 2469 tcp MTI-TCS-COMM [Mario_Bonin] [Mario_Bonin]
mti-tcs-comm 2469 udp MTI-TCS-COMM [Mario_Bonin] [Mario_Bonin]
taskman-port 2470 tcp taskman port [Boris_Panteleev] [Boris_Panteleev]
taskman-port 2470 udp taskman port [Boris_Panteleev] [Boris_Panteleev]
seaodbc 2471 tcp SeaODBC [Adrian_Hornby] [Adrian_Hornby]
seaodbc 2471 udp SeaODBC [Adrian_Hornby] [Adrian_Hornby]
c3 2472 tcp C3 [Eckhard_Grieger] [Eckhard_Grieger]
c3 2472 udp C3 [Eckhard_Grieger] [Eckhard_Grieger]
aker-cdp 2473 tcp Aker-cdp [Rodrigo_Ormonde] [Rodrigo_Ormonde]
aker-cdp 2473 udp Aker-cdp [Rodrigo_Ormonde] [Rodrigo_Ormonde]
vitalanalysis 2474 tcp Vital Analysis [Srinivas_Reddy] [Srinivas_Reddy]
vitalanalysis 2474 udp Vital Analysis [Srinivas_Reddy] [Srinivas_Reddy]
ace-server 2475 tcp ACE Server
ace-server 2475 udp ACE Server
ace-svr-prop 2476 tcp ACE Server Propagation
ace-svr-prop 2476 udp ACE Server Propagation
ssm-cvs 2477 tcp SecurSight Certificate Valifation Service
ssm-cvs 2477 udp SecurSight Certificate Valifation Service

Contact Information

ID Name Organization Contact URI Last Updated
[Adrian_Hornby] Adrian Hornby mailto:Adrian.Hornby&aran.co.uk
[Amy_Weaver_2] Amy Weaver mailto:amy_weaver&nai.com
[Anton_Kucer] Anton Kucer mailto:akucer&microsoft.com
[Bob_Gaddie] Bob Gaddie mailto:bobg&dtn.com
[Boris_Panteleev] Boris Panteleev mailto:bpanteleev&himel.com
[Brian_Klassen] Brian Klassen mailto:Brian.Klassen&unisys.com
[Bridgette_Landers] Bridgette Landers mailto:blanders&boi.hp.com
[Chuck_Talk] Chuck Talk mailto:ctalk&pervasive.com
[Clark_Williams] Clark Williams mailto:clark&wirespeed.com
[Dave_Neudoerffer] Dave Neudoerffer mailto:Dave.Neudoerffer&ianywhere.com
[David_Schwartz] David Schwartz mailto:davidjoelschwartz&gmail.com 2019-08-09
[Doug_Boone] Doug Boone mailto:dboone&atg.clr.com
[Doug_Dillon] Doug Dillon mailto:dillon&hns.com
[Dragos_Pop] Dragos Pop mailto:dragos&cs.ubbcluj.ro
[Eckhard_Grieger] Eckhard Grieger mailto:e.grieger&com-on.de
[Eric_Pulsipher_2] Eric Pulsipher mailto:eric_pulsipher&fc.hp.com
[Evan_Caves] Evan Caves mailto:evan&acc.com
[Gary_M_Allen] Gary M. Allen mailto:gallen&symantec.com
[Greg_Troxel] Greg Troxel mailto:gdt&ir.bbn.com
[Ian_Daniels] Ian Daniels mailto:btexact.ports&bt.com
[Ing_Markus_Huemer] Ing. Markus Huemer mailto:markus.huemer&hsd.at
[Jorg_Hoffmann] Jörg Hoffmann mailto:electronicc_rd&wago.com
[Julian_Mehnle] Julian Mehnle mailto:julian&mehnle.net
[Jun_Nakamura] Jun Nakamura mailto:jnakamur&cp10.es.xerox.com
[Kazuhiro_Koide] Kazuhiro Koide mailto:kaz&pfu.co.jp
[Konstantin_Iavid] Konstantin Iavid mailto:kiavid&highcriteria.com
[Ladislav_Baranyay] Ladislav Baranyay mailto:identcod&identcode.sk
[Leonhard_Diekmann] Leonhard Diekmann mailto:diekmann&04.mstr02.telekom400.dbp.de
[Man_Shuen_Cheung] Man Shuen Cheung mailto:man_shuen_cheung&wamnet.co.uk
[Mario_Bonin] Mario Bonin mailto:boninm&microtempus.com
[Mark_Lyall] Mark Lyall mailto:mark.lyall&madge.com
[Mike_Morgan] Mike Morgan mailto:mmorgan&lucent.com
[MSW_architecture_team] MSW architecture team NetApp mailto:mswarch&netapp.com 2014-07-18
[NetApp] NetApp, Inc. mailto:mswarch&netapp.com 2014-07-18
[Paul_Carmichael] Paul Carmichael mailto:paulcarmichael&indx.net
[Paul_Greenfield] Paul Greenfield mailto:paul.greenfield&unisys.com
[Pekka_Takaranta] Pekka Takaranta mailto:pekka.takaranta&tellabs.fi
[Pierre_Frisch] Pierre Frisch mailto:Pierre.Frisch&spearway.com
[Robert_Watson] Robert Watson mailto:robert&cyrus.watson.org
[Rodrigo_Ormonde] Rodrigo Ormonde mailto:ormonde&aker.com.br
[Srinivas_Reddy] Srinivas Reddy mailto:sreddy&vitalsigns.com
[Tom_Taylor] Tom Taylor mailto:Tom.Taylor&unisys.com