Service Name and Transport Protocol Port Number Registry

Last Updated
2020-05-13
Expert(s)
TCP/UDP: Joe Touch; Eliot Lear, Allison Mankin, Markku Kojo, Kumiko Ono, Martin Stiemerling, 
Lars Eggert, Alexey Melnikov, Wes Eddy, Alexander Zimmermann, Brian Trammell, and Jana Iyengar
SCTP: Allison Mankin and 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 difference uses of these ranges is 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.                                                   *
************************************************************************
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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
libelle-disc 8282 udp Libelle EnterpriseBus discovery [Libelle_AG] [Hans-Joachim_Krueger] 2016-02-17
liberty-lm 1496 tcp liberty-lm [Jim_Rogers] [Jim_Rogers]
liberty-lm 1496 udp liberty-lm [Jim_Rogers] [Jim_Rogers]
library Delicious Library 2 Collection Data Sharing Protocol [William_Shipley] [William_Shipley] Defined TXT keys: None
libratone Protocol for setup and control of Libratone products [Libratone_AS] [Claus_Jensen] 2011-10-27 Defined TXT keys: None
licensedaemon 1986 tcp cisco license management
licensedaemon 1986 udp cisco license management
licor LI-COR Biosciences instrument discovery [Software_LI-COR_Biosciences] [Kevin_Ediger] 2011-10-18 Defined TXT keys: None
LiebDevMgmt-A 3029 tcp LiebDevMgmt_A

IANA assigned this well-formed service name as a replacement for "LiebDevMgmt_A".
[Mike_Velten] [Mike_Velten]
LiebDevMgmt-A 3029 udp LiebDevMgmt_A

IANA assigned this well-formed service name as a replacement for "LiebDevMgmt_A".
[Mike_Velten] [Mike_Velten]
LiebDevMgmt-C 3027 tcp LiebDevMgmt_C

IANA assigned this well-formed service name as a replacement for "LiebDevMgmt_C".
LiebDevMgmt-C 3027 udp LiebDevMgmt_C

IANA assigned this well-formed service name as a replacement for "LiebDevMgmt_C".
LiebDevMgmt-DM 3028 tcp LiebDevMgmt_DM

IANA assigned this well-formed service name as a replacement for "LiebDevMgmt_DM".
LiebDevMgmt-DM 3028 udp LiebDevMgmt_DM

IANA assigned this well-formed service name as a replacement for "LiebDevMgmt_DM".
LiebDevMgmt_A 3029 tcp LiebDevMgmt_A [Mike_Velten] [Mike_Velten] This entry is an alias to "LiebDevMgmt-A". This entry is now historic, not usable for use with many common service discovery mechanisms.
LiebDevMgmt_A 3029 udp LiebDevMgmt_A [Mike_Velten] [Mike_Velten] This entry is an alias to "LiebDevMgmt-A". This entry is now historic, not usable for use with many common service discovery mechanisms.
LiebDevMgmt_C 3027 tcp LiebDevMgmt_C This entry is an alias to "LiebDevMgmt-C". This entry is now historic, not usable for use with many common service discovery mechanisms.
LiebDevMgmt_C 3027 udp LiebDevMgmt_C This entry is an alias to "LiebDevMgmt-C". This entry is now historic, not usable for use with many common service discovery mechanisms.
LiebDevMgmt_DM 3028 tcp LiebDevMgmt_DM This entry is an alias to "LiebDevMgmt-DM". This entry is now historic, not usable for use with many common service discovery mechanisms.
LiebDevMgmt_DM 3028 udp LiebDevMgmt_DM This entry is an alias to "LiebDevMgmt-DM". This entry is now historic, not usable for use with many common service discovery mechanisms.
light 4670 tcp Light packets transfer protocol [Adam_Golovenko] [Adam_Golovenko] 2006-10
light 4670 udp Light packets transfer protocol [Adam_Golovenko] [Adam_Golovenko] 2006-10
limnerpressure 8191 tcp Limner Pressure [Aaron_Kleinsteiber] [Aaron_Kleinsteiber] 2014-01-16
link 245 tcp LINK
link 245 udp LINK
linkname 1903 tcp Local Link Name Resolution [Dan_Harrington] [Dan_Harrington]
linkname 1903 udp Local Link Name Resolution [Dan_Harrington] [Dan_Harrington]
linktest 3746 tcp LXPRO.COM LinkTest
linktest 3746 udp LXPRO.COM LinkTest
linktest-s 3747 tcp LXPRO.COM LinkTest SSL [Greg_Bailey] [Greg_Bailey] 2003-04
linktest-s 3747 udp LXPRO.COM LinkTest SSL [Greg_Bailey] [Greg_Bailey] 2003-04
linogridengine 12300 tcp LinoGrid Engine [Frans_Lundberg] [Frans_Lundberg] 2004-11
linogridengine 12300 udp LinoGrid Engine [Frans_Lundberg] [Frans_Lundberg] 2004-11
linx 1361 tcp LinX [Steffen_Schilke] [Steffen_Schilke]
linx 1361 udp LinX [Steffen_Schilke] [Steffen_Schilke]
lionhead 2611 tcp LIONHEAD [Tim_Rance] [Tim_Rance]
lionhead 2611 udp LIONHEAD [Tim_Rance] [Tim_Rance]
lipsinc 1968 tcp LIPSinc
lipsinc 1968 udp LIPSinc
lipsinc1 1969 tcp LIPSinc 1 [Robert_Armington] [Robert_Armington]
lipsinc1 1969 udp LIPSinc 1 [Robert_Armington] [Robert_Armington]
lisp-control 4342 udp LISP Control Packets [IESG] [IETF_Chair] 2007-05 2012-04-26 [RFC6830]
lisp-data 4341 udp LISP Data Packets [IESG] [IETF_Chair] 2007-11-12 2012-04-26 [RFC6830]
lispworks-orb 3672 tcp LispWorks ORB [Lisp_Support] [Lisp_Support]
lispworks-orb 3672 udp LispWorks ORB [Lisp_Support] [Lisp_Support]
listcrt-port 3913 tcp ListCREATOR Port [Tomokazu_Asai] [Tomokazu_Asai] 2003-11
listcrt-port 3913 udp ListCREATOR Port [Tomokazu_Asai] [Tomokazu_Asai] 2003-11
listcrt-port-2 3914 tcp ListCREATOR Port 2 [Tomokazu_Asai] [Tomokazu_Asai] 2003-11
listcrt-port-2 3914 udp ListCREATOR Port 2 [Tomokazu_Asai] [Tomokazu_Asai] 2003-11
listmgr-port 3767 tcp ListMGR Port [Takashi_Kubota] [Takashi_Kubota] 2003-06
listmgr-port 3767 udp ListMGR Port [Takashi_Kubota] [Takashi_Kubota] 2003-06
livelan 1555 tcp livelan [Kaynam_Hedayat] [Kaynam_Hedayat]
livelan 1555 udp livelan [Kaynam_Hedayat] [Kaynam_Hedayat]
livestats 2795 tcp LiveStats [Chris_Greene] [Chris_Greene]
livestats 2795 udp LiveStats [Chris_Greene] [Chris_Greene]
ljk-login 472 tcp ljk-login [LJK] [LJK]
ljk-login 472 udp ljk-login [LJK] [LJK]
lkcmserver 3278 tcp LKCM Server [Javier_Jimenez] [Javier_Jimenez]
lkcmserver 3278 udp LKCM Server [Javier_Jimenez] [Javier_Jimenez]
llm-csv 2814 tcp llm-csv [Glen_Sansoucie_2] [Glen_Sansoucie_2]
llm-csv 2814 udp llm-csv [Glen_Sansoucie_2] [Glen_Sansoucie_2]
llm-pass 2813 tcp llm-pass
llm-pass 2813 udp llm-pass
llmnr 5355 tcp LLMNR [Bernard_Aboba] [Bernard_Aboba] 2004-06
llmnr 5355 udp LLMNR [Bernard_Aboba] [Bernard_Aboba] 2004-06
llrp 5084 tcp EPCglobal Low-Level Reader Protocol [Margaret_Wasserman][Paul_Dietrich] [Margaret_Wasserman][Paul_Dietrich] 2006-11 Defined TXT keys: None. RFID reader Low Level Reader Protocol
llrp 5084 udp EPCglobal Low-Level Reader Protocol [Margaret_Wasserman][Paul_Dietrich] [Margaret_Wasserman][Paul_Dietrich] 2006-11 Defined TXT keys: None. RFID reader Low Level Reader Protocol
llrp-secure RFID reader Low Level Reader Protocol over SSL/TLS [Jason_Schoon_2] [Jason_Schoon_2] Defined TXT keys: None
llsurfup-http 1183 tcp LL Surfup HTTP
llsurfup-http 1183 udp LL Surfup HTTP
llsurfup-https 1184 tcp LL Surfup HTTPS [Katy_Lynn_McCullough] [Katy_Lynn_McCullough]
llsurfup-https 1184 udp LL Surfup HTTPS [Katy_Lynn_McCullough] [Katy_Lynn_McCullough]
lm-dta 8206 tcp LM Dta [Chris_Flynn] [Chris_Flynn]
lm-dta 8206 udp LM Dta [Chris_Flynn] [Chris_Flynn]
lm-instmgr 8205 tcp LM Instmgr [Chris_Flynn] [Chris_Flynn]
lm-instmgr 8205 udp LM Instmgr [Chris_Flynn] [Chris_Flynn]
lm-mon 31620 tcp lm mon [System_Administrator] [System_Administrator] 2003-06
lm-mon 31620 udp lm mon [System_Administrator] [System_Administrator] 2003-06
lm-perfworks 8204 tcp LM Perfworks [Chris_Flynn] [Chris_Flynn]
lm-perfworks 8204 udp LM Perfworks [Chris_Flynn] [Chris_Flynn]
lm-sserver 8207 tcp LM SServer [Chris_Flynn] [Chris_Flynn]
lm-sserver 8207 udp LM SServer [Chris_Flynn] [Chris_Flynn]
lm-webwatcher 8208 tcp LM Webwatcher [Chris_Flynn] [Chris_Flynn]
lm-webwatcher 8208 udp LM Webwatcher [Chris_Flynn] [Chris_Flynn]
lm-x 6200 tcp LM-X License Manager by X-Formation [Henrik_Goldman] [Henrik_Goldman] 2006-10 Known Unauthorized Use on port 6200
lm-x 6200 udp LM-X License Manager by X-Formation [Henrik_Goldman] [Henrik_Goldman] 2006-10 Known Unauthorized Use on port 6200
lmcs 4877 tcp Lighting Management Control System [Timothy_Parry] [Timothy_Parry] 2011-02-15
lmcs 4877 udp Lighting Management Control System [Timothy_Parry] [Timothy_Parry] 2011-02-15
lmdp 2623 tcp LMDP [Ken_Bailey] [Ken_Bailey]
lmdp 2623 udp LMDP [Ken_Bailey] [Ken_Bailey]
lmp 701 tcp Link Management Protocol (LMP) [RFC4204]
lmp 701 udp Link Management Protocol (LMP) [RFC4204]
lms 4056 tcp Location Message Service [Sergey_Burnevsky] [Sergey_Burnevsky] 2006-08
lms 4056 udp Location Message Service [Sergey_Burnevsky] [Sergey_Burnevsky] 2006-08
lmsocialserver 1111 tcp LM Social Server [Ron_Lussier] [Ron_Lussier]
lmsocialserver 1111 udp LM Social Server [Ron_Lussier] [Ron_Lussier]
lnvalarm 2282 tcp LNVALARM
lnvalarm 2282 udp LNVALARM
lnvconsole 2281 tcp LNVCONSOLE
lnvconsole 2281 udp LNVCONSOLE
lnvmailmon 2285 tcp LNVMAILMON [John_Payne] [John_Payne]

Contact Information

ID Name Organization Contact URI Last Updated
[Aaron_Kleinsteiber] Aaron Kleinsteiber mailto:protocol&limnerapp.com 2014-01-16
[Adam_Golovenko] Adam Golovenko mailto:golovenko&gmail.com 2006-10
[Bernard_Aboba] Bernard Aboba mailto:bernarda&microsoft.com 2004-06
[Chris_Flynn] Chris Flynn mailto:cflynn&landmark.com
[Chris_Greene] Chris Greene mailto:cgreeneOA&avidsports.com
[Claus_Jensen] Claus Jensen Libratone A/S mailto:cjn&libratone.com 2011-10-27
[Dan_Harrington] Dan Harrington mailto:dth&lucent.com
[Frans_Lundberg] Frans Lundberg mailto:frans&linova.com 2004-11
[Glen_Sansoucie_2] Glen Sansoucie mailto:glen&llmwin.com
[Greg_Bailey] Greg Bailey mailto:gbailey&lxpro.com 2003-04
[Hans-Joachim_Krueger] Hans Joachim Krueger mailto:hkrueger&libelle.com 2016-02-17
[Henrik_Goldman] Henrik Goldman mailto:hg&x-formation.com 2006-10
[IESG] IESG mailto:iesg&ietf.org
[IETF_Chair] IETF Chair IETF mailto:chair&ietf.org
[Jason_Schoon_2] Jason Schoon mailto:jason.schoon&intermec.com
[Javier_Jimenez] Javier Jimenez
[Jim_Rogers] Jim Rogers mailto:trane!jimbo&pacbell.com
[John_Payne] John Payne mailto:jpayne&lotus.com
[Katy_Lynn_McCullough] Katy Lynn McCullough mailto:KatyM&laplink.com
[Kaynam_Hedayat] Kaynam Hedayat mailto:khedayat&roadrunner.pictel.com
[Ken_Bailey] Ken Bailey mailto:kbailey&rockettalk.com
[Kevin_Ediger] Kevin Ediger Software LI-COR Biosciences mailto:kevin.ediger&licor.com 2011-10-18
[LJK] LJK Software, Cambridge, Massachusetts mailto:support&ljk.com
[Libelle_AG] Libelle AG mailto:hkrueger&libelle.com 2016-02-17
[Libratone_AS] Libratone A/S mailto:info&libratone.com 2011-10-27
[Lisp_Support] Lisp Support mailto:lisp-support&xanalys.com
[Margaret_Wasserman] Margaret Wasserman mailto:margaret&thingmagic.com 2006-11
[Mike_Velten] Mike Velten mailto:Mike_Velten&liebert.com
[Paul_Dietrich] Paul Dietrich mailto:registrar&impinj.com
[Robert_Armington] Robert Armington mailto:rarmington&lipsinc.com
[Ron_Lussier] Ron Lussier mailto:coyote&likeminds.com
[Sergey_Burnevsky] Sergey Burnevsky mailto:sergey.burnevsky&nokia.com 2006-08
[Software_LI-COR_Biosciences] Software LI-COR Biosciences mailto:kevin.ediger&licor.com 2011-10-18
[Steffen_Schilke] Steffen Schilke
[System_Administrator] System Administrator mailto:sysadmin&silvaco.com 2003-06
[Takashi_Kubota] Takashi Kubota mailto:kubota.takashi&pfu.fugitsu.com 2003-06
[Tim_Rance] Tim Rance mailto:trance&lionhead.co.uk
[Timothy_Parry] Timothy Parry mailto:tim&lumenergi.com 2011-02-15
[Tomokazu_Asai] Tomokazu Asai mailto:asai.tomokazu&pfu.fujitsu.com 2003-11
[William_Shipley] William Shipley mailto:wjs&me.com