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
brvread 1054 udp BRVREAD [A_Boninn] [A_Boninn]
ansyslmd 1055 tcp ANSYS - License Manager [Suzanne_Lorrin] [Suzanne_Lorrin]
ansyslmd 1055 udp ANSYS - License Manager [Suzanne_Lorrin] [Suzanne_Lorrin]
vfo 1056 tcp VFO [Anthony_Gonzalez] [Anthony_Gonzalez]
vfo 1056 udp VFO [Anthony_Gonzalez] [Anthony_Gonzalez]
startron 1057 tcp STARTRON [Markus_Sabadello] [Markus_Sabadello]
startron 1057 udp STARTRON [Markus_Sabadello] [Markus_Sabadello]
nim 1058 tcp nim
nim 1058 udp nim
nimreg 1059 tcp nimreg [Robert_Gordon] [Robert_Gordon]
nimreg 1059 udp nimreg [Robert_Gordon] [Robert_Gordon]
polestar 1060 tcp POLESTAR [Masakuni_Okada] [Masakuni_Okada]
polestar 1060 udp POLESTAR [Masakuni_Okada] [Masakuni_Okada]
kiosk 1061 tcp KIOSK [Ken_Ksiazek] [Ken_Ksiazek]
kiosk 1061 udp KIOSK [Ken_Ksiazek] [Ken_Ksiazek]
veracity 1062 tcp Veracity [Ross_Williams] [Ross_Williams]
veracity 1062 udp Veracity [Ross_Williams] [Ross_Williams]
kyoceranetdev 1063 tcp KyoceraNetDev [Shigenaka_Kanemitsu] [Shigenaka_Kanemitsu]
kyoceranetdev 1063 udp KyoceraNetDev [Shigenaka_Kanemitsu] [Shigenaka_Kanemitsu]
jstel 1064 tcp JSTEL [Duane_Kiser] [Duane_Kiser]
jstel 1064 udp JSTEL [Duane_Kiser] [Duane_Kiser]
syscomlan 1065 tcp SYSCOMLAN [Alexandre_Lechenne] [Alexandre_Lechenne] 2008-12-10
syscomlan 1065 udp SYSCOMLAN [Alexandre_Lechenne] [Alexandre_Lechenne] 2008-12-10
fpo-fns 1066 tcp FPO-FNS [Jens_Klose] [Jens_Klose]
fpo-fns 1066 udp FPO-FNS [Jens_Klose] [Jens_Klose]
instl-boots 1067 tcp Installation Bootstrap Proto. Serv.

IANA assigned this well-formed service name as a replacement for "instl_boots".
instl_boots 1067 tcp Installation Bootstrap Proto. Serv. This entry is an alias to "instl-boots". This entry is now historic, not usable for use with many common service discovery mechanisms.
instl-boots 1067 udp Installation Bootstrap Proto. Serv.

IANA assigned this well-formed service name as a replacement for "instl_boots".
instl_boots 1067 udp Installation Bootstrap Proto. Serv. This entry is an alias to "instl-boots". This entry is now historic, not usable for use with many common service discovery mechanisms.
instl-bootc 1068 tcp Installation Bootstrap Proto. Cli.

IANA assigned this well-formed service name as a replacement for "instl_bootc".
[David_Arko] [David_Arko]
instl_bootc 1068 tcp Installation Bootstrap Proto. Cli. [David_Arko] [David_Arko] This entry is an alias to "instl-bootc". This entry is now historic, not usable for use with many common service discovery mechanisms.
instl-bootc 1068 udp Installation Bootstrap Proto. Cli.

IANA assigned this well-formed service name as a replacement for "instl_bootc".
[David_Arko] [David_Arko]
instl_bootc 1068 udp Installation Bootstrap Proto. Cli. [David_Arko] [David_Arko] This entry is an alias to "instl-bootc". This entry is now historic, not usable for use with many common service discovery mechanisms.
cognex-insight 1069 tcp COGNEX-INSIGHT [Steve_Olson] [Steve_Olson]
cognex-insight 1069 udp COGNEX-INSIGHT [Steve_Olson] [Steve_Olson]
gmrupdateserv 1070 tcp GMRUpdateSERV [Steve_Kellogg] [Steve_Kellogg]
gmrupdateserv 1070 udp GMRUpdateSERV [Steve_Kellogg] [Steve_Kellogg]
bsquare-voip 1071 tcp BSQUARE-VOIP [Yen_Lee] [Yen_Lee]
bsquare-voip 1071 udp BSQUARE-VOIP [Yen_Lee] [Yen_Lee]
cardax 1072 tcp CARDAX [Charles_Oram] [Charles_Oram]
cardax 1072 udp CARDAX [Charles_Oram] [Charles_Oram]
bridgecontrol 1073 tcp Bridge Control [Andy_Heron] [Andy_Heron]
bridgecontrol 1073 udp Bridge Control [Andy_Heron] [Andy_Heron]
warmspotMgmt 1074 tcp Warmspot Management Protocol [Robert_C_Henningsga] [Robert_C_Henningsga]
warmspotMgmt 1074 udp Warmspot Management Protocol [Robert_C_Henningsga] [Robert_C_Henningsga]
rdrmshc 1075 tcp RDRMSHC [Ericko_Shimada] [Ericko_Shimada]
rdrmshc 1075 udp RDRMSHC [Ericko_Shimada] [Ericko_Shimada]
dab-sti-c 1076 tcp DAB STI-C [World_DAB] [World_DAB]
dab-sti-c 1076 udp DAB STI-C [World_DAB] [World_DAB]
imgames 1077 tcp IMGames [Jean_A_Ames] [Jean_A_Ames]
imgames 1077 udp IMGames [Jean_A_Ames] [Jean_A_Ames]
avocent-proxy 1078 tcp Avocent Proxy Protocol [Steven_W_Clark] [Steven_W_Clark]
avocent-proxy 1078 udp Avocent Proxy Protocol [Steven_W_Clark] [Steven_W_Clark]
asprovatalk 1079 tcp ASPROVATalk [Chiew_Farn_Chung] [Chiew_Farn_Chung]
asprovatalk 1079 udp ASPROVATalk [Chiew_Farn_Chung] [Chiew_Farn_Chung]
socks 1080 tcp Socks [Ying_Da_Lee] [Ying_Da_Lee]
socks 1080 udp Socks [Ying_Da_Lee] [Ying_Da_Lee]
pvuniwien 1081 tcp PVUNIWIEN [Peter_Lipp] [Peter_Lipp]
pvuniwien 1081 udp PVUNIWIEN [Peter_Lipp] [Peter_Lipp]
amt-esd-prot 1082 tcp AMT-ESD-PROT [AMTEC_S_p_A] [AMTEC_S_p_A]
amt-esd-prot 1082 udp AMT-ESD-PROT [AMTEC_S_p_A] [AMTEC_S_p_A]
ansoft-lm-1 1083 tcp Anasoft License Manager
ansoft-lm-1 1083 udp Anasoft License Manager
ansoft-lm-2 1084 tcp Anasoft License Manager
ansoft-lm-2 1084 udp Anasoft License Manager
webobjects 1085 tcp Web Objects [Andy_Belk] [Andy_Belk]
webobjects 1085 udp Web Objects [Andy_Belk] [Andy_Belk]
cplscrambler-lg 1086 tcp CPL Scrambler Logging
cplscrambler-lg 1086 udp CPL Scrambler Logging
cplscrambler-in 1087 tcp CPL Scrambler Internal
cplscrambler-in 1087 udp CPL Scrambler Internal
cplscrambler-al 1088 tcp CPL Scrambler Alarm Log [Richard_Corn] [Richard_Corn]
cplscrambler-al 1088 udp CPL Scrambler Alarm Log [Richard_Corn] [Richard_Corn]
ff-annunc 1089 tcp FF Annunciation
ff-annunc 1089 udp FF Annunciation
ff-fms 1090 tcp FF Fieldbus Message Specification
ff-fms 1090 udp FF Fieldbus Message Specification
ff-sm 1091 tcp FF System Management [Fieldbus_Foundation] [Fieldbus_Foundation]
ff-sm 1091 udp FF System Management [Fieldbus_Foundation] [Fieldbus_Foundation]
obrpd 1092 tcp Open Business Reporting Protocol [William_Randolph_Roy] [William_Randolph_Roy]
obrpd 1092 udp Open Business Reporting Protocol [William_Randolph_Roy] [William_Randolph_Roy]
proofd 1093 tcp PROOFD
proofd 1093 udp PROOFD
rootd 1094 tcp ROOTD [Fons_Rademakers] [Fons_Rademakers]
rootd 1094 udp ROOTD [Fons_Rademakers] [Fons_Rademakers]
nicelink 1095 tcp NICELink [Jordi_Lisbona] [Jordi_Lisbona]
nicelink 1095 udp NICELink [Jordi_Lisbona] [Jordi_Lisbona]
cnrprotocol 1096 tcp Common Name Resolution Protocol [Michael_Mealling] [Michael_Mealling]
cnrprotocol 1096 udp Common Name Resolution Protocol [Michael_Mealling] [Michael_Mealling]
sunclustermgr 1097 tcp Sun Cluster Manager [Ashit_Patel] [Ashit_Patel]
sunclustermgr 1097 udp Sun Cluster Manager [Ashit_Patel] [Ashit_Patel]
rmiactivation 1098 tcp RMI Activation
rmiactivation 1098 udp RMI Activation
rmiregistry 1099 tcp RMI Registry [Mark_Hodapp] [Mark_Hodapp]
rmiregistry 1099 udp RMI Registry [Mark_Hodapp] [Mark_Hodapp]
mctp 1100 tcp MCTP [Vitaly_Revsin] [Vitaly_Revsin]
mctp 1100 udp MCTP [Vitaly_Revsin] [Vitaly_Revsin]
pt2-discover 1101 tcp PT2-DISCOVER [Ralph_Kammerlander] [Ralph_Kammerlander]
pt2-discover 1101 udp PT2-DISCOVER [Ralph_Kammerlander] [Ralph_Kammerlander]
adobeserver-1 1102 tcp ADOBE SERVER 1
adobeserver-1 1102 udp ADOBE SERVER 1

Contact Information

ID Name Contact URI Last Updated
[AMTEC_S_p_A] AMTEC S.p.A mailto:sp.amtec&interbusiness.it
[A_Boninn] A. Boninn mailto:aboninn&hotmail.com
[Alexandre_Lechenne] Alexandre Lechenne mailto:alexandre.lechenne&selectron.ch 2008-12-10
[Andy_Belk] Andy Belk mailto:abelk&apple.com
[Andy_Heron] Andy Heron mailto:btexact.ports&bt.com
[Anthony_Gonzalez] Anthony Gonzalez mailto:agonzal1&telcordia.com
[Ashit_Patel] Ashit Patel mailto:Ashit.Patel&eng.sun.com
[Charles_Oram] Charles Oram mailto:charleso&cardax.com
[Chiew_Farn_Chung] Chiew Farn Chung mailto:cfchung&asprova.com
[David_Arko] David Arko mailto:darko&hpfcrn.fc.hp.com
[Duane_Kiser] Duane Kiser mailto:dkiser&jsexpress.com
[Ericko_Shimada] Ericko Shimada mailto:eriko&kel.fujitsu.co.jp
[Fieldbus_Foundation] Fieldbus Foundation mailto:dave.glanzer&fieldbus.org 2002-10
[Fons_Rademakers] Fons Rademakers mailto:Fons.Rademakers&cern.ch
[Jean_A_Ames] Jean A. Ames mailto:engr-admin&flipside.com
[Jens_Klose] Jens Klose mailto:jklose&intercope.com
[Jordi_Lisbona] Jordi Lisbona mailto:jlisbona&tango04.net
[Ken_Ksiazek] Ken Ksiazek mailto:kksiazek&maytag.com
[Mark_Hodapp] Mark Hodapp mailto:mark.hodapp&sun.com
[Markus_Sabadello] Markus Sabadello mailto:sabadello&startron.org
[Masakuni_Okada] Masakuni Okada mailto:masakuni&jp.ibm.com
[Michael_Mealling] Michael Mealling mailto:michaelm&netsol.com
[Peter_Lipp] Peter Lipp mailto:Peter.Lipp&iaik.at
[Ralph_Kammerlander] Ralph Kammerlander mailto:ralph.kammerlander&khe.siemens.de
[Richard_Corn] Richard Corn mailto:rac&racc.com
[Robert_C_Henningsga] Robert C. Henningsgard mailto:rhenningsgard&circuscontrols.com
[Robert_Gordon] Robert Gordon mailto:rbg&austin.ibm.com
[Ross_Williams] Ross Williams mailto:ross&rocksoft.com
[Shigenaka_Kanemitsu] Shigenaka Kanemitsu mailto:Shigenaka_Kanemitsu&ypd.kyocera.co.jp
[Steve_Kellogg] Steve Kellogg mailto:stevekellogg&mezzogmr.com
[Steve_Olson] Steve Olson mailto:solson&cognex.com
[Steven_W_Clark] Steven W. Clark mailto:steven.clark&avocent.com
[Suzanne_Lorrin] Suzanne Lorrin mailto:suzanne.lorrin&ansys.com
[Vitaly_Revsin] Vitaly Revsin mailto:vitaly&webmanage.com
[William_Randolph_Roy] William Randolph Royere III mailto:william&royere.net
[World_DAB] World DAB mailto:worlddab_irc&worlddab.org
[Yen_Lee] Yen Lee mailto:YenL&bsquare.com
[Ying_Da_Lee] Ying-Da Lee mailto:ylee&syl.dl.nec.com