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
directplay 2234 tcp DirectPlay [Ajay_Jindal] [Ajay_Jindal]
directplay 2234 udp DirectPlay [Ajay_Jindal] [Ajay_Jindal]
sercomm-wlink 2235 tcp Sercomm-WLink [Melinda_Tsao] [Melinda_Tsao]
sercomm-wlink 2235 udp Sercomm-WLink [Melinda_Tsao] [Melinda_Tsao]
nani 2236 tcp Nani [Steve_Benoit] [Steve_Benoit]
nani 2236 udp Nani [Steve_Benoit] [Steve_Benoit]
optech-port1-lm 2237 tcp Optech Port1 License Manager [Gerard_Cannie] [Gerard_Cannie]
optech-port1-lm 2237 udp Optech Port1 License Manager [Gerard_Cannie] [Gerard_Cannie]
aviva-sna 2238 tcp AVIVA SNA SERVER [Vick_Keshishian] [Vick_Keshishian]
aviva-sna 2238 udp AVIVA SNA SERVER [Vick_Keshishian] [Vick_Keshishian]
imagequery 2239 tcp Image Query [Charles_Jacobs] [Charles_Jacobs]
imagequery 2239 udp Image Query [Charles_Jacobs] [Charles_Jacobs]
recipe 2240 tcp RECIPe [Charlie_Limoges] [Charlie_Limoges] 1997-12-16
recipe 2240 udp RECIPe [Charlie_Limoges] [Charlie_Limoges] 1997-12-16
ivsd 2241 tcp IVS Daemon [Thierry_Turletti] [Thierry_Turletti]
ivsd 2241 udp IVS Daemon [Thierry_Turletti] [Thierry_Turletti]
foliocorp 2242 tcp Folio Remote Server [Pat_Mcgowan] [Pat_Mcgowan]
foliocorp 2242 udp Folio Remote Server [Pat_Mcgowan] [Pat_Mcgowan]
magicom 2243 tcp Magicom Protocol [Yossi_Appleboum] [Yossi_Appleboum]
magicom 2243 udp Magicom Protocol [Yossi_Appleboum] [Yossi_Appleboum]
nmsserver 2244 tcp NMS Server [Dmitry_Krasnonosenki] [Dmitry_Krasnonosenki]
nmsserver 2244 udp NMS Server [Dmitry_Krasnonosenki] [Dmitry_Krasnonosenki]
hao 2245 tcp HaO [Panic_Ride] [Panic_Ride]
hao 2245 udp HaO [Panic_Ride] [Panic_Ride]
pc-mta-addrmap 2246 tcp PacketCable MTA Addr Map [Dave_Maxwell] [Dave_Maxwell]
pc-mta-addrmap 2246 udp PacketCable MTA Addr Map [Dave_Maxwell] [Dave_Maxwell]
antidotemgrsvr 2247 tcp Antidote Deployment Manager Service [Rod_Waltermann] [Rod_Waltermann] 2006-02
antidotemgrsvr 2247 udp Antidote Deployment Manager Service [Rod_Waltermann] [Rod_Waltermann] 2006-02
ums 2248 tcp User Management Service [Andrew_Crockford] [Andrew_Crockford]
ums 2248 udp User Management Service [Andrew_Crockford] [Andrew_Crockford]
rfmp 2249 tcp RISO File Manager Protocol [Shinji_Yamanaka] [Shinji_Yamanaka]
rfmp 2249 udp RISO File Manager Protocol [Shinji_Yamanaka] [Shinji_Yamanaka]
remote-collab 2250 tcp remote-collab [Richard_Walters] [Richard_Walters]
remote-collab 2250 udp remote-collab [Richard_Walters] [Richard_Walters]
dif-port 2251 tcp Distributed Framework Port [Sebastien_Lambla] [Sebastien_Lambla]
dif-port 2251 udp Distributed Framework Port [Sebastien_Lambla] [Sebastien_Lambla]
njenet-ssl 2252 tcp NJENET using SSL [Hans_U_Schmidt] [Hans_U_Schmidt]
njenet-ssl 2252 udp NJENET using SSL [Hans_U_Schmidt] [Hans_U_Schmidt]
dtv-chan-req 2253 tcp DTV Channel Request [Richard_Hodges] [Richard_Hodges]
dtv-chan-req 2253 udp DTV Channel Request [Richard_Hodges] [Richard_Hodges]
seispoc 2254 tcp Seismic P.O.C. Port [Robert_Reimiller] [Robert_Reimiller]
seispoc 2254 udp Seismic P.O.C. Port [Robert_Reimiller] [Robert_Reimiller]
vrtp 2255 tcp VRTP - ViRtue Transfer Protocol [Max_Fudim] [Max_Fudim]
vrtp 2255 udp VRTP - ViRtue Transfer Protocol [Max_Fudim] [Max_Fudim]
pcc-mfp 2256 tcp PCC MFP [Kunihiko_Morota] [Kunihiko_Morota] 2005-08
pcc-mfp 2256 udp PCC MFP [Kunihiko_Morota] [Kunihiko_Morota] 2005-08
simple-tx-rx 2257 tcp simple text/file transfer [Daniel_Kilsdonk] [Daniel_Kilsdonk] 2006-08
simple-tx-rx 2257 udp simple text/file transfer [Daniel_Kilsdonk] [Daniel_Kilsdonk] 2006-08
rcts 2258 tcp Rotorcraft Communications Test System [Terry_Eldridge] [Terry_Eldridge] 2006-08
rcts 2258 udp Rotorcraft Communications Test System [Terry_Eldridge] [Terry_Eldridge] 2006-08
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

Contact Information

ID Name Organization Contact URI Last Updated
[Adam_Ernst] Adam Ernst mailto:cosmicsoft&cosmicsoft.net 2004-12
[Ajay_Jindal] Ajay Jindal mailto:ajayj&microsoft.com
[American_Power_Conve] American Power Conversion mailto:ports&apcc.com 2002-02
[Anders_Hjelm] Anders Hjelm mailto:anders.hjelm&ec.se 2006-03
[Andrew_Crockford] Andrew Crockford mailto:andrew.crockford&modus-interactive.co.uk
[Andrew_H_Derbyshire] Andrew H Derbyshire mailto:ahd&meetingmaker.plus.kew.com 2004-12
[Charles_Jacobs] Charles Jacobs mailto:cjacobs&numinous.com
[Charlie_Limoges] Charlie Limoges mailto:Charlie.Limoges&gdc4s.com
[Daniel_Kilsdonk] Daniel Kilsdonk mailto:dan&prospeed.net 2006-08
[Dave_Maxwell] Dave Maxwell mailto:d.maxwell&cablelabs.com
[David_Brandon] David Brandon mailto:dade&smoolabs.net 2006-08
[Dmitry_Krasnonosenki] Dmitry Krasnonosenkikh mailto:Dmitry_Krasnonosenkih&nmss.com
[Dr_Michael_Erdmann] Dr. Michael Erdmann mailto:erdmann&ontoprise.de 2004-12
[Friedman_Wagner_Dobl] Friedman Wagner-Dobler mailto:Friedman.Wagner-Dobler&gdc4s.com 2005-09
[Gerard_Cannie] Gerard Cannie mailto:jcannie&opticaltech.com
[Hans_U_Schmidt] Hans U Schmidt mailto:schmidth&de.ibm.com
[IESG] IESG mailto:iesg&ietf.org
[IETF_Chair] IETF Chair IETF mailto:chair&ietf.org
[Karl_Norrman] Karl Norrman mailto:karl.norrman&ericsson.com 2004-12
[Kunihiko_Morota] Kunihiko Morota mailto:morota.kunihiko&jp.panasonic.com 2005-08
[Li_Zhiping] Li Zhiping CAICT mailto:lizhiping&caict.ac.cn 2023-06-29
[Mark_de_Rooi] Mark de Rooi mailto:derooi&xs4all.nl 2004-12
[Max_Fudim] Max Fudim mailto:fudim&virtue3d.com
[Melinda_Tsao] Melinda Tsao mailto:melinda&tpe1.sercomm.com.tw
[Niels_Christiansen] Niels Christiansen mailto:nchris&austin.ibm.com
[Panic_Ride] Panic Ride mailto:panicride&hao.org
[Pat_Mcgowan] Pat Mcgowan mailto:pmcgowan&folio.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
[Richard_Hodges] Richard Hodges mailto:rh&matriplex.com
[Richard_Walters] Richard Walters mailto:walters&cs.ucdavis.edu
[Robert_Reimiller] Robert Reimiller mailto:bob&certsoft.com
[Robert_Wright] Robert Wright, Founder and Principal Engineer Audio Precision Inc. mailto:ianaports&ap.com 2006-05
[Rod_Waltermann] Rod Waltermann mailto:walterma&us.lenovo.com 2006-02
[Samppa_Lahtinen] Samppa Lahtinen mailto:samppa.lahtinen&motivesys.com 2004-06
[Sebastien_Lambla] Sebastien Lambla mailto:lambla&bouygtel.com
[Shinji_Yamanaka] Shinji Yamanaka mailto:syamanaka&jci.co.jp
[Steve_Benoit] Steve Benoit mailto:benoit&math.colostate.edu 2015-09-07
[Terry_Eldridge] Terry Eldridge mailto:Terry.Eldridge&6pointn.com 2006-08
[Thierry_Turletti] Thierry Turletti mailto:Thierry.Turletti&sophia.inria.fr
[Vick_Keshishian] Vick Keshishian mailto:vickenK&192.219.82.71
[Yossi_Appleboum] Yossi Appleboum mailto:yossia&magicom.co.il
[Zhang_Bo] Zhang Bo CAICT mailto:zhangbo3&caict.ac.cn 2023-06-29