Internet Assigned Numbers Authority

Service Name and Transport Protocol Port Number Registry

Last Updated
2024-11-19
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
smartpackets 3218 udp EMC SmartPackets [Steve_Spataro] [Steve_Spataro]
wms-messenger 3219 tcp WMS Messenger [WM_Software_Inc.] [WM_Software_Inc.] 2022-07-18
wms-messenger 3219 udp WMS Messenger [WM_Software_Inc.] [WM_Software_Inc.] 2022-07-18
xnm-ssl 3220 tcp XML NM over SSL
xnm-ssl 3220 udp XML NM over SSL
xnm-clear-text 3221 tcp XML NM over TCP [Mark_Trostler] [Mark_Trostler]
xnm-clear-text 3221 udp XML NM over TCP [Mark_Trostler] [Mark_Trostler]
glbp 3222 tcp Gateway Load Balancing Pr [Douglas_McLaggan] [Douglas_McLaggan]
glbp 3222 udp Gateway Load Balancing Pr [Douglas_McLaggan] [Douglas_McLaggan]
digivote 3223 tcp DIGIVOTE (R) Vote-Server [Christian_Treczoks] [Christian_Treczoks]
digivote 3223 udp DIGIVOTE (R) Vote-Server [Christian_Treczoks] [Christian_Treczoks]
aes-discovery 3224 tcp AES Discovery Port [Ken_Richard] [Ken_Richard]
aes-discovery 3224 udp AES Discovery Port [Ken_Richard] [Ken_Richard]
fcip-port 3225 tcp FCIP [RFC3821]
fcip-port 3225 udp FCIP [RFC3821]
isi-irp 3226 tcp ISI Industry Software IRP [Peter_Sandstrom] [Peter_Sandstrom]
isi-irp 3226 udp ISI Industry Software IRP [Peter_Sandstrom] [Peter_Sandstrom]
dwnmshttp 3227 tcp DiamondWave NMS Server
dwnmshttp 3227 udp DiamondWave NMS Server
dwmsgserver 3228 tcp DiamondWave MSG Server [Varma_Bhupatiraju] [Varma_Bhupatiraju]
dwmsgserver 3228 udp DiamondWave MSG Server [Varma_Bhupatiraju] [Varma_Bhupatiraju]
global-cd-port 3229 tcp Global CD Port [Vitaly_Revsin_2] [Vitaly_Revsin_2]
global-cd-port 3229 udp Global CD Port [Vitaly_Revsin_2] [Vitaly_Revsin_2]
sftdst-port 3230 tcp Software Distributor Port [Andrea_Lanza] [Andrea_Lanza] 2014-02-21
sftdst-port 3230 udp Software Distributor Port [Andrea_Lanza] [Andrea_Lanza] 2014-02-21
vidigo 3231 tcp VidiGo communication (previous was: Delta Solutions Direct) [Peter_Ijkhout] [Peter_Ijkhout]
vidigo 3231 udp VidiGo communication (previous was: Delta Solutions Direct) [Peter_Ijkhout] [Peter_Ijkhout]
mdtp 3232 tcp MDT port 2012-02-21 [RFC6513]
mdtp 3232 udp MDT port 2012-02-21 [RFC6513]
whisker 3233 tcp WhiskerControl main port [Rudolf_Cardinal] [Rudolf_Cardinal] 2002-02
whisker 3233 udp WhiskerControl main port [Rudolf_Cardinal] [Rudolf_Cardinal] 2002-02
alchemy 3234 tcp Alchemy Server [Mikhail_Belov] [Mikhail_Belov] 2002-02
alchemy 3234 udp Alchemy Server [Mikhail_Belov] [Mikhail_Belov] 2002-02
mdap-port 3235 tcp MDAP port [Johan_Deleu] [Johan_Deleu] 2002-02
mdap-port 3235 udp MDAP Port [Johan_Deleu] [Johan_Deleu] 2002-02
apparenet-ts 3236 tcp appareNet Test Server
apparenet-ts 3236 udp appareNet Test Server
apparenet-tps 3237 tcp appareNet Test Packet Sequencer
apparenet-tps 3237 udp appareNet Test Packet Sequencer
apparenet-as 3238 tcp appareNet Analysis Server
apparenet-as 3238 udp appareNet Analysis Server
apparenet-ui 3239 tcp appareNet User Interface [Fred_Klassen] [Fred_Klassen] 2002-02
apparenet-ui 3239 udp appareNet User Interface [Fred_Klassen] [Fred_Klassen] 2002-02
triomotion 3240 tcp Trio Motion Control Port [Tony_Matthews] [Tony_Matthews] 2002-02
triomotion 3240 udp Trio Motion Control Port [Tony_Matthews] [Tony_Matthews] 2002-02
sysorb 3241 tcp SysOrb Monitoring Server [Jakob_Oestergaard] [Jakob_Oestergaard] 2002-02
sysorb 3241 udp SysOrb Monitoring Server [Jakob_Oestergaard] [Jakob_Oestergaard] 2002-02
sdp-id-port 3242 tcp Session Description ID [Greg_Rose_2] [Greg_Rose_2] 2002-02
sdp-id-port 3242 udp Session Description ID [Greg_Rose_2] [Greg_Rose_2] 2002-02
timelot 3243 tcp Timelot Port [David_Ferguson] [David_Ferguson] 2002-02
timelot 3243 udp Timelot Port [David_Ferguson] [David_Ferguson] 2002-02
onesaf 3244 tcp OneSAF [Gene_McCulley] [Gene_McCulley] 2002-02
onesaf 3244 udp OneSAF [Gene_McCulley] [Gene_McCulley] 2002-02
vieo-fe 3245 tcp VIEO Fabric Executive [James_Cox] [James_Cox] 2002-02
vieo-fe 3245 udp VIEO Fabric Executive [James_Cox] [James_Cox] 2002-02
dvt-system 3246 tcp DVT SYSTEM PORT
dvt-system 3246 udp DVT SYSTEM PORT
dvt-data 3247 tcp DVT DATA LINK [Phillip_Heil] [Phillip_Heil] 2002-02
dvt-data 3247 udp DVT DATA LINK [Phillip_Heil] [Phillip_Heil] 2002-02
procos-lm 3248 tcp PROCOS LM [Torsten_Rendelmann] [Torsten_Rendelmann]
procos-lm 3248 udp PROCOS LM [Torsten_Rendelmann] [Torsten_Rendelmann]
ssp 3249 tcp State Sync Protocol [Stephane_Beaulieu] [Stephane_Beaulieu] 2002-02
ssp 3249 udp State Sync Protocol [Stephane_Beaulieu] [Stephane_Beaulieu] 2002-02
hicp 3250 tcp HMS hicp port [Joel_Palsson] [Joel_Palsson] 2002-02
hicp 3250 udp HMS hicp port [Joel_Palsson] [Joel_Palsson] 2002-02
sysscanner 3251 tcp Sys Scanner [Dick_Georges] [Dick_Georges] 2002-02
sysscanner 3251 udp Sys Scanner [Dick_Georges] [Dick_Georges] 2002-02
dhe 3252 tcp DHE port [Fabrizio_Massimo_Fer] [Fabrizio_Massimo_Fer] 2002-02
dhe 3252 udp DHE port [Fabrizio_Massimo_Fer] [Fabrizio_Massimo_Fer] 2002-02
pda-data 3253 tcp PDA Data
pda-data 3253 udp PDA Data
pda-sys 3254 tcp PDA System [Jian_Fan] [Jian_Fan] 2002-02
pda-sys 3254 udp PDA System [Jian_Fan] [Jian_Fan] 2002-02
semaphore 3255 tcp Semaphore Connection Port [Jay_Eckles] [Jay_Eckles] 2002-02
semaphore 3255 udp Semaphore Connection Port [Jay_Eckles] [Jay_Eckles] 2002-02
cpqrpm-agent 3256 tcp Compaq RPM Agent Port
cpqrpm-agent 3256 udp Compaq RPM Agent Port
cpqrpm-server 3257 tcp Compaq RPM Server Port [Royal_King] [Royal_King] 2002-02
cpqrpm-server 3257 udp Compaq RPM Server Port [Royal_King] [Royal_King] 2002-02
ivecon-port 3258 tcp Ivecon Server Port [Serguei_Tevs] [Serguei_Tevs] 2002-02
ivecon-port 3258 udp Ivecon Server Port [Serguei_Tevs] [Serguei_Tevs] 2002-02
epncdp2 3259 tcp Epson Network Common Devi [Oishi_Toshiaki] [Oishi_Toshiaki] 2002-02
epncdp2 3259 udp Epson Network Common Devi [Oishi_Toshiaki] [Oishi_Toshiaki] 2002-02
iscsi-target 3260 tcp iSCSI port [IESG] [IETF_Chair] 2013-08-27 [RFC7143]
iscsi-target 3260 udp iSCSI port [IESG] [IETF_Chair] 2013-08-27 [RFC7143]
winshadow 3261 tcp winShadow [Colin_Barry] [Colin_Barry]
winshadow 3261 udp winShadow [Colin_Barry] [Colin_Barry]
necp 3262 tcp NECP [Alberto_Cerpa] [Alberto_Cerpa]
necp 3262 udp NECP [Alberto_Cerpa] [Alberto_Cerpa]
ecolor-imager 3263 tcp E-Color Enterprise Imager [Tamara_Baker] [Tamara_Baker]
ecolor-imager 3263 udp E-Color Enterprise Imager [Tamara_Baker] [Tamara_Baker]
ccmail 3264 tcp cc:mail/lotus [brockman] [brockman]
ccmail 3264 udp cc:mail/lotus [brockman] [brockman]
altav-tunnel 3265 tcp Altav Tunnel [Gary_M_Allen] [Gary_M_Allen]
altav-tunnel 3265 udp Altav Tunnel [Gary_M_Allen] [Gary_M_Allen]
ns-cfg-server 3266 tcp NS CFG Server [Aivi_Lie] [Aivi_Lie]
ns-cfg-server 3266 udp NS CFG Server [Aivi_Lie] [Aivi_Lie]
ibm-dial-out 3267 tcp IBM Dial Out [Skip_Booth] [Skip_Booth]
ibm-dial-out 3267 udp IBM Dial Out [Skip_Booth] [Skip_Booth]
msft-gc 3268 tcp Microsoft Global Catalog
msft-gc 3268 udp Microsoft Global Catalog

Contact Information

ID Name Organization Contact URI Last Updated
[Aivi_Lie] Aivi Lie mailto:LIEA&netsoft.com
[Alberto_Cerpa] Alberto Cerpa mailto:cerpa&isi.edu
[Andrea_Lanza] Andrea Lanza mailto:andrea&andrealanza.eu 2014-02-21
[Christian_Treczoks] Christian Treczoks mailto:ct&braehler.com
[Colin_Barry] Colin Barry mailto:cbarry&gbahn.com
[David_Ferguson] David Ferguson mailto:dferguson&xtralot.com 2002-02
[Dick_Georges] Dick Georges mailto:georges&monaco.net 2002-02
[Douglas_McLaggan] Douglas McLaggan mailto:glbp-info&cisco.com
[Fabrizio_Massimo_Fer] Fabrizio Massimo Ferrara mailto:fmf&gesi.it 2002-02
[Fred_Klassen] Fred Klassen mailto:fklassen&jaalam.com 2002-02
[Gary_M_Allen] Gary M. Allen mailto:gallen&symantec.com
[Gene_McCulley] Gene McCulley mailto:mcculley&cuspy.com 2002-02
[Greg_Rose_2] Greg Rose mailto:ggr&qualcomm.com 2002-02
[IESG] IESG mailto:iesg&ietf.org
[IETF_Chair] IETF Chair IETF mailto:chair&ietf.org
[Jakob_Oestergaard] Jakob Oestergaard mailto:joe&sysorb.com 2002-02
[James_Cox] James Cox mailto:jocox&view.com 2002-02
[Jay_Eckles] Jay Eckles mailto:ecklesweb&yahoo.com 2002-02
[Jian_Fan] Jian Fan mailto:fjian&dmfsys.com 2002-02
[Joel_Palsson] Joel Palsson HMS Industrial Networks AB mailto:ianacontact&hms.se 2002-02
[Johan_Deleu] Johan Deleu mailto:johan.deleu&alcatel.be 2002-02
[Ken_Richard] Ken Richard mailto:kenr&aeseducation.com
[Mark_Trostler] Mark Trostler mailto:trostler&juniper.net
[Mikhail_Belov] Mikhail Belov mailto:mikhail&imrgold.com 2002-02
[Oishi_Toshiaki] Oishi Toshiaki SEIKO EPSON Corporation mailto:Oishi.Toshiaki&exc.epson.co.jp 2002-02
[Peter_Ijkhout] Peter Ijkhout mailto:peter&deltasolutions.nl
[Peter_Sandstrom] Peter Sandstrom mailto:peter.sandstrom&tassen.fi
[Phillip_Heil] Phillip Heil mailto:phil.heil&dvtsensors.com 2002-02
[Royal_King] Royal King mailto:royal.king&compaq.com 2002-02
[Rudolf_Cardinal] Rudolf Cardinal mailto:rudolf&pobox.com 2002-02
[Serguei_Tevs] Serguei Tevs mailto:STevs&ivecon.com 2002-02
[Skip_Booth] Skip Booth mailto:sbooth&vnet.ibm.com
[Stephane_Beaulieu] Stephane Beaulieu mailto:stephane&cisco.com 2002-02
[Steve_Spataro] Steve Spataro mailto:spataro_steve&emc.com
[Tamara_Baker] Tamara Baker mailto:tbaker&ecolor.com
[Tony_Matthews] Tony Matthews mailto:tmatthews&triomotion.com 2002-02
[Torsten_Rendelmann] Torsten Rendelmann mailto:torsten.rendelmann&procos.com
[Varma_Bhupatiraju] Varma Bhupatiraju mailto:varma&calient.net
[Vitaly_Revsin_2] Vitaly Revsin mailto:vitaly&netapp.com
[WM_Software_Inc.] WM Software Inc. mailto:support&wmsoftware.com 2022-07-18
[brockman] mailto:brockman&ccmail.com