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
bid-serv 2259 tcp BIF identifiers resolution service [Li_Zhiping] [Zhang_Bo] 2023-03-06
bid-serv 2259 udp BIF identifiers resolution service [Li_Zhiping] [Zhang_Bo] 2023-03-06
apc-2260 2260 tcp APC 2260 [American_Power_Conve] [American_Power_Conve] 2002-02
apc-2260 2260 udp APC 2260 [American_Power_Conve] [American_Power_Conve] 2002-02
comotionmaster 2261 tcp CoMotion Master Server
comotionmaster 2261 udp CoMotion Master Server
comotionback 2262 tcp CoMotion Backup Server [Friedman_Wagner_Dobl] [Friedman_Wagner_Dobl] 2005-09
comotionback 2262 udp CoMotion Backup Server [Friedman_Wagner_Dobl] [Friedman_Wagner_Dobl] 2005-09
ecwcfg 2263 tcp ECweb Configuration Service [Anders_Hjelm] [Anders_Hjelm] 2006-03
ecwcfg 2263 udp ECweb Configuration Service [Anders_Hjelm] [Anders_Hjelm] 2006-03
apx500api-1 2264 tcp Audio Precision Apx500 API Port 1
apx500api-1 2264 udp Audio Precision Apx500 API Port 1
apx500api-2 2265 tcp Audio Precision Apx500 API Port 2 [Robert_Wright] [Robert_Wright]
apx500api-2 2265 udp Audio Precision Apx500 API Port 2 [Robert_Wright] [Robert_Wright]
mfserver 2266 tcp M-Files Server [Samppa_Lahtinen] [Samppa_Lahtinen] 2004-06
mfserver 2266 udp M-files Server [Samppa_Lahtinen] [Samppa_Lahtinen] 2004-06
ontobroker 2267 tcp OntoBroker [Dr_Michael_Erdmann] [Dr_Michael_Erdmann] 2004-12
ontobroker 2267 udp OntoBroker [Dr_Michael_Erdmann] [Dr_Michael_Erdmann] 2004-12
amt 2268 tcp AMT [IESG] [IETF_Chair] 2004-12 2014-12-17 [RFC7450]
amt 2268 udp AMT [IESG] [IETF_Chair] 2004-12 2014-12-17 [RFC7450]
mikey 2269 tcp MIKEY [Karl_Norrman] [Karl_Norrman] 2004-12
mikey 2269 udp MIKEY [Karl_Norrman] [Karl_Norrman] 2004-12
starschool 2270 tcp starSchool [Adam_Ernst] [Adam_Ernst] 2004-12
starschool 2270 udp starSchool [Adam_Ernst] [Adam_Ernst] 2004-12
mmcals 2271 tcp Secure Meeting Maker Scheduling
mmcals 2271 udp Secure Meeting Maker Scheduling
mmcal 2272 tcp Meeting Maker Scheduling [Andrew_H_Derbyshire] [Andrew_H_Derbyshire] 2004-12
mmcal 2272 udp Meeting Maker Scheduling [Andrew_H_Derbyshire] [Andrew_H_Derbyshire] 2004-12
mysql-im 2273 tcp MySQL Instance Manager [Petr_Chardin] [Petr_Chardin] 2004-12
mysql-im 2273 udp MySQL Instance Manager [Petr_Chardin] [Petr_Chardin] 2004-12
pcttunnell 2274 tcp PCTTunneller [ProControl_Technolog] [ProControl_Technolog] 2004-12
pcttunnell 2274 udp PCTTunneller [ProControl_Technolog] [ProControl_Technolog] 2004-12
ibridge-data 2275 tcp iBridge Conferencing
ibridge-data 2275 udp iBridge Conferencing
ibridge-mgmt 2276 tcp iBridge Management [Patrick_Fisher] [Patrick_Fisher] 2004-12
ibridge-mgmt 2276 udp iBridge Management [Patrick_Fisher] [Patrick_Fisher] 2004-12
bluectrlproxy 2277 tcp Bt device control proxy [Mark_de_Rooi] [Mark_de_Rooi] 2004-12
bluectrlproxy 2277 udp Bt device control proxy [Mark_de_Rooi] [Mark_de_Rooi] 2004-12
s3db 2278 tcp Simple Stacked Sequences Database [David_Brandon] [David_Brandon] 2006-08
s3db 2278 udp Simple Stacked Sequences Database [David_Brandon] [David_Brandon] 2006-08
xmquery 2279 tcp xmquery [Niels_Christiansen] [Niels_Christiansen]
xmquery 2279 udp xmquery [Niels_Christiansen] [Niels_Christiansen]
lnvpoller 2280 tcp LNVPOLLER
lnvpoller 2280 udp LNVPOLLER
lnvconsole 2281 tcp LNVCONSOLE
lnvconsole 2281 udp LNVCONSOLE
lnvalarm 2282 tcp LNVALARM
lnvalarm 2282 udp LNVALARM
lnvstatus 2283 tcp LNVSTATUS
lnvstatus 2283 udp LNVSTATUS
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]
ofsd 2322 tcp ofsd
ofsd 2322 udp ofsd
crmsbits 2422 tcp CRMSBITS [Rod_Ward] [Rod_Ward]
crmsbits 2422 udp CRMSBITS [Rod_Ward] [Rod_Ward]
windb 2522 tcp WinDb [Larry_Traylor] [Larry_Traylor]
windb 2522 udp WinDb [Larry_Traylor] [Larry_Traylor]
metricadbc 2622 tcp MetricaDBC [Russ_Olivant] [Russ_Olivant]
metricadbc 2622 udp MetricaDBC [Russ_Olivant] [Russ_Olivant]
proactivesrvr 2722 tcp Proactive Server [Dalit_Naor] [Dalit_Naor]
proactivesrvr 2722 udp Proactive Server [Dalit_Naor] [Dalit_Naor]
ka0wuc 2822 tcp ka0wuc [Kit_Haskins] [Kit_Haskins]
ka0wuc 2822 udp ka0wuc [Kit_Haskins] [Kit_Haskins]
cesdcdtrn 2922 tcp CESD Contents Delivery Data Transfer [Shinya_Abe] [Shinya_Abe]
cesdcdtrn 2922 udp CESD Contents Delivery Data Transfer [Shinya_Abe] [Shinya_Abe]
csregagent 3022 tcp CSREGAGENT [Nedelcho_Stanev] [Nedelcho_Stanev]
csregagent 3022 udp CSREGAGENT [Nedelcho_Stanev] [Nedelcho_Stanev]
vtr-emulator 3122 tcp MTI VTR Emulator port [John_Mertus] [John_Mertus]
vtr-emulator 3122 udp MTI VTR Emulator port [John_Mertus] [John_Mertus]
xnm-ssl 3220 tcp XML NM over SSL

Contact Information

ID Name Organization Contact URI Last Updated
[Adam_Ernst] Adam Ernst mailto:cosmicsoft&cosmicsoft.net 2004-12
[Adwait_Sathe] Adwait Sathe mailto:asathe&sonusnet.com 2005-08
[American_Power_Conve] American Power Conversion mailto:ports&apcc.com 2002-02
[Anders_Hjelm] Anders Hjelm mailto:anders.hjelm&ec.se 2006-03
[Andrew_H_Derbyshire] Andrew H Derbyshire mailto:ahd&meetingmaker.plus.kew.com 2004-12
[Dalit_Naor] Dalit Naor mailto:dalit&il.ibm.com
[David_Brandon] David Brandon mailto:dade&smoolabs.net 2006-08
[David_Thompson] David Thompson mailto:theta&theta-ent.com
[Dr_Michael_Erdmann] Dr. Michael Erdmann mailto:erdmann&ontoprise.de 2004-12
[Eric_Lan] Eric Lan mailto:elan&d2k.com
[Francois_Painchaud] Francois Painchaud mailto:fpainchaud&konshus.com
[Friedman_Wagner_Dobl] Friedman Wagner-Dobler mailto:Friedman.Wagner-Dobler&gdc4s.com 2005-09
[IESG] IESG mailto:iesg&ietf.org
[IETF_Chair] IETF Chair IETF mailto:chair&ietf.org
[Jochen_Hansmeyer] Jochen Hansmeyer mailto:cjh&krypton.de
[John_Daniel_Bonamico] John Daniel Bonamico mailto:jbonamico&symantec.com
[John_Mertus] John Mertus mailto:mertus&mathtech.com
[John_Payne] John Payne mailto:jpayne&lotus.com
[Karl_Norrman] Karl Norrman mailto:karl.norrman&ericsson.com 2004-12
[Kit_Haskins] Kit Haskins mailto:kit&ka0wuc.org
[Larry_Traylor] Larry Traylor mailto:larry&arium.com
[Lars_Goran_Magnusson] Lars-Goran Magnusson mailto:lars-goran.magnusson&seisy.mail.abb.com
[Li_Zhiping] Li Zhiping CAICT mailto:lizhiping&caict.ac.cn 2023-06-29
[Linda_Lin] Linda Lin mailto:llin&sonusnet.com 2006-08
[Mark_de_Rooi] Mark de Rooi mailto:derooi&xs4all.nl 2004-12
[Nedelcho_Stanev] Nedelcho Stanev mailto:nstanev&csoft.bg
[Niels_Christiansen] Niels Christiansen mailto:nchris&austin.ibm.com
[Patrick_Fisher] Patrick Fisher mailto:pfisher&hns.com 2004-12
[Petr_Chardin] Petr Chardin mailto:petr&mysql.com 2004-12
[ProControl_Technolog] ProControl Technology AB mailto:info&pctworld.com 2004-12
[Robert_Byrne] Robert Byrne mailto:robert.byrne&ie.abb.com 2006-09
[Robert_Wright] Robert Wright, Founder and Principal Engineer Audio Precision Inc. mailto:ianaports&ap.com 2006-05
[Rod_Ward] Rod Ward mailto:RWard&vaccmel1.telstra.com.au
[Russ_Olivant] Russ Olivant mailto:russ.olivant&metrica.co.uk
[SEIKO_EPSON] SEIKO EPSON mailto:APD.admin&exc.epson.co.jp 2006-06
[Samppa_Lahtinen] Samppa Lahtinen mailto:samppa.lahtinen&motivesys.com 2004-06
[Shinya_Abe] Shinya Abe mailto:abeabe&pfu.co.jp
[Steven_Sawkins] Steven Sawkins mailto:ssawkins&symantec.com
[Tung_Nguyen] Tung Nguyen mailto:dash&ricochet.net
[William_Fernando_Mat] William Fernando Maton Sotomayor mailto:wfms&acm.org 2005-01
[Zhang_Bo] Zhang Bo CAICT mailto:zhangbo3&caict.ac.cn 2023-06-29