Service Name and Transport Protocol Port Number Registry

Last Updated
2021-05-06
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
notateit-disc 4803 udp Notateit Messaging Discovery [Ean_Black] [Ean_Black] 2009-04-08
4828-4836 Unassigned
varadero-0 4837 tcp Varadero-0
varadero-0 4837 udp Varadero-0
varadero-1 4838 tcp Varadero-1
varadero-1 4838 udp Varadero-1
varadero-2 4839 tcp Varadero-2 [Carlos_Arteaga] [Carlos_Arteaga]
varadero-2 4839 udp Varadero-2 [Carlos_Arteaga] [Carlos_Arteaga]
opcua-tls 4843 tcp OPC UA TCP Protocol over TLS/SSL [OPC_Foundation] [Randy_Armstrong] 2006-09 2017-05-23
opcua-tls 4843 udp OPC UA TCP Protocol over TLS/SSL [OPC_Foundation] [Randy_Armstrong] 2006-09
wmlserver 4883 tcp Meier-Phelps License Server [William_Phelps] [William_Phelps] 2010-03-22
4883 udp Reserved
4890-4893 Unassigned
4903-4911 Unassigned
lutcp 4913 tcp LUTher Control Protocol [Markus_Loeffler] [Markus_Loeffler] 2007-07-03
4916-4935 Unassigned
an-signaling 4936 udp Signal protocol port for autonomic networking [Cisco_systems_3] [Toerless_Eckert_2] 2014-06-06
4936 tcp Reserved
4937 tcp Reserved
atsc-mh-ssc 4937 udp ATSC-M/H Service Signaling Channel [Jerry_Whitaker] [Jerry_Whitaker] 2008-10-27
4938-4939 Unassigned
4943-4948 Unassigned
dbsyncarbiter 4953 tcp Synchronization Arbiter [Dave_Neudoerffer_2] [Dave_Neudoerffer_2] 2009-11-18
4953 udp Reserved
4983 Unassigned 2005-12-22
fmpro-internal 5003 tcp FileMaker, Inc. - Proprietary transport [Clay_Maeckel] [Clay_Maeckel]
fmpro-internal 5003 udp FileMaker, Inc. - Proprietary name binding [Clay_Maeckel] [Clay_Maeckel]
avt-profile-1 5004 tcp RTP media data [RFC3551][RFC4571]
avt-profile-1 5004 udp RTP media data [RFC3551]
avt-profile-1 5004 dccp RTP media data [RFC3551][RFC5762]
avt-profile-2 5005 tcp RTP control protocol [RFC3551][RFC4571]
avt-profile-2 5005 udp RTP control protocol [RFC3551]
avt-profile-2 5005 dccp RTP control protocol [RFC3551][RFC5762]
fmpro-v6 5013 tcp FileMaker, Inc. - Proprietary transport [Alex_Chen] [Alex_Chen] 2007-08-01
fmpro-v6 5013 udp FileMaker, Inc. - Proprietary transport [Alex_Chen] [Alex_Chen] 2007-08-01
htuilsrv 5023 tcp Htuil Server for PLD2 [Dennis_Reinhardt] [Dennis_Reinhardt]
htuilsrv 5023 udp Htuil Server for PLD2 [Dennis_Reinhardt] [Dennis_Reinhardt]
surfpass 5030 tcp SurfPass [Olivier_Guezenec] [Olivier_Guezenec] 2006-12
surfpass 5030 udp SurfPass [Olivier_Guezenec] [Olivier_Guezenec] 2006-12
5031 tcp Reserved
dmp 5031 udp Direct Message Protocol [Gjermund_Wallenius] [Gjermund_Wallenius] 2009-09-30
signacert-agent 5032 tcp SignaCert Enterprise Trust Server Agent [Harris_Corporation] [Daniel_R_Somerfield] 2011-08-05
5032 udp Reserved
jtnetd-server 5033 tcp Janstor Secure Data [Janstor_Technology] [Anthony_Johnson_2] 2015-06-08
5033 udp Reserved
jtnetd-status 5034 tcp Janstor Status [Janstor_Technology] [Anthony_Johnson_2] 2015-06-08
5034 udp Reserved
5035-5041 Unassigned
swxadmin 5043 tcp ShopWorX Administration [Don_W_Fitzpatrick] [Don_W_Fitzpatrick] 2005-08
swxadmin 5043 udp ShopWorX Administration [Don_W_Fitzpatrick] [Don_W_Fitzpatrick] 2005-08
rlm 5053 tcp RLM License Server [Matt_Christiano_2] [Matt_Christiano_2] 2008-07-28
rlm-disc 5053 udp RLM Discovery Server [Reprise_Software_Inc] [Matt_Christiano_3] 2012-11-06
sip 5060 tcp SIP 2014-04-09 [RFC3263]
sip 5060 udp SIP 2014-04-09 [RFC3263]
sips 5061 tcp SIP-TLS 2014-04-09 [RFC3263]
sips 5061 udp SIP-TLS 2014-04-09 [RFC3263]
csrpc 5063 tcp centrify secure RPC [Paul_Moore] [Paul_Moore] 2009-10-28
5063 udp Reserved
tag-pm 5073 tcp Advantage Group Port Mgr [James_Goddard] [James_Goddard] 2005-08
tag-pm 5073 udp Advantage Group Port Mgr [James_Goddard] [James_Goddard] 2005-08
qfp 5083 tcp Qpur File Protocol [Joachim_Kluemper] [Joachim_Kluemper] 2008-03-19
qfp 5083 udp Qpur File Protocol [Joachim_Kluemper] [Joachim_Kluemper] 2008-03-19
sentinel-lm 5093 tcp Sentinel LM [Derick_Snyder] [Derick_Snyder]
sentinel-lm 5093 udp Sentinel LM [Derick_Snyder] [Derick_Snyder]
actifio-c2c 5103 tcp Actifio C2C [Ravi_Kollipara] [Ravi_Kollipara] 2010-06-18
5103 udp Reserved
5113 Unassigned 2010-11-09
5121-5132 Unassigned
nbt-pc 5133 tcp Policy Commander [Emily_Harris] [Emily_Harris] 2004-11
nbt-pc 5133 udp Policy Commander [Emily_Harris] [Emily_Harris] 2004-11
ppactivation 5134 tcp PP ActivationServer [Ian_Bradley] [Ian_Bradley] 2009-10-14
5134 udp Reserved
erp-scale 5135 tcp ERP-Scale [Ian_Bradley] [Ian_Bradley] 2009-10-14 Defined TXT keys:
RFC=<RFC destination and status>
Device=<Scale device and status>
5135 udp Reserved
5136 tcp Reserved
minotaur-sa 5136 udp Minotaur SA [Kenneth_Flynn] [Kenneth_Flynn] 2009-10-14
ctsd 5137 tcp MyCTS server port [Jilles_Oldenbeuving] [Jilles_Oldenbeuving] 2002-06
ctsd 5137 udp MyCTS server port [Jilles_Oldenbeuving] [Jilles_Oldenbeuving] 2002-06
5138-5144 Unassigned
5153 tcp Reserved 2009-07-01 2018-04-19 Historic usage was toruxserver. De-Assigned on 2018-04-19
5153 udp Reserved
sbackup 5163 tcp Shadow Backup [Glenn_Allen] [Glenn_Allen] 2009-08-05
5163 udp Reserved
scte30 5168 tcp SCTE30 Connection [Thomas_Russell] [Thomas_Russell] 2005-05
scte30 5168 udp SCTE30 Connection [Thomas_Russell] [Thomas_Russell] 2005-05
5173-5189 Unassigned
aol-3 5193 tcp AmericaOnline3 [Bruce_Mackey] [Bruce_Mackey]
aol-3 5193 udp AmericaOnline3 [Bruce_Mackey] [Bruce_Mackey]
targus-getdata3 5203 tcp TARGUS GetData 3 [John_Keaveney] [John_Keaveney]
targus-getdata3 5203 udp TARGUS GetData 3 [John_Keaveney] [John_Keaveney]
3exmp 5221 tcp 3eTI Extensible Management Protocol for OAMP [Bill_Rettig] [Bill_Rettig] 2010-05-19
hpvirtgrp 5223 tcp HP Virtual Machine Group Management [John_Williams] [John_Williams] 2007-06
hpvirtgrp 5223 udp HP Virtual Machine Group Management [John_Williams] [John_Williams] 2007-06
jaxflow-data 5230 tcp JaxMP RealFlow application and protocol data [JaxMP] [Stephen_Hull] 2014-08-15
5230 udp Reserved
crusecontrol 5231 tcp Remote Control of Scan Software for Cruse Scanners [Cruse_Spezialmaschinen_GmbH] [Christof_J._Reetz_2] 2014-08-15
5231 udp Reserved
csedaemon 5232 tcp Cruse Scanning System Service [Christof_J_Reetz] [Christof_J_Reetz] 2011-03-09
5232 udp Reserved
enfs 5233 tcp Etinnae Network File Service [Chris_Peel] [Chris_Peel] 2011-03-09
5233 udp Reserved

Contact Information

ID Name Organization Contact URI Last Updated
[Alex_Chen] Alex Chen mailto:alex_chen&filemaker.com 2009-11-25
[Anthony_Johnson_2] Anthony Johnson Janstor Technology mailto:jtadmin&janstor.com 2015-06-08
[Bill_Rettig] Bill Rettig mailto:WRettig&efji.com 2010-05-19
[Bruce_Mackey] Bruce Mackey mailto:BAMackey&aol.com
[Carlos_Arteaga] Carlos Arteaga mailto:carteaga&abacoinc.com
[Chris_Peel] Chris Peel mailto:chrispeel.gsi&googlemail.com 2011-03-09
[Christof_J_Reetz] Christof J. Reetz mailto:cjr&netplan.de 2011-03-09
[Christof_J._Reetz_2] Christof J. Reetz Cruse Spezialmaschinen GmbH mailto:cjr&crusescanner.com 2014-08-15
[Clay_Maeckel] Clay Maeckel mailto:clay_maeckel&filemaker.com
[Cruse_Spezialmaschinen_GmbH] Cruse Spezialmaschinen GmbH mailto:cjr&crusescanner.com 2014-08-15
[Daniel_R_Somerfield] Daniel R Somerfield mailto:dsomerfi&harris.com 2011-08-05
[Dave_Neudoerffer_2] Dave Neudoerffer mailto:dave.neudoerffer&sybase.com 2009-11-18
[Dennis_Reinhardt] Dennis Reinhardt mailto:DennisR&dair.com
[Derick_Snyder] Derick Snyder mailto:dsnyder&rainbow.com
[Don_W_Fitzpatrick] Don W. Fitzpatrick mailto:dwf&internetworxsystems.com 2005-08
[Ean_Black] Ean Black mailto:eanb&bladesoftware.co.uk 2009-04-08
[Emily_Harris] Emily Harris mailto:eharris&newboundary.com 2004-11
[Gjermund_Wallenius] Gjermund Wallenius mailto:gwallenius&ndlocis.mil.no 2009-09-30
[Glenn_Allen] Glenn Allen mailto:gallen&goorooinc.com 2009-08-05
[Harris_Corporation] Harris, Corporation mailto:dsomerfi&harris.com 2011-08-05
[Ian_Bradley] Ian Bradley mailto:ian.bradley&pocketprograms.com
mailto:development&pocketprograms.com
2009-10-14
[James_Goddard] James Goddard mailto:jamesg&taglim.com 2005-08
[Janstor_Technology] Janstor Technology mailto:jtadmin&janstor.com 2015-06-08
[JaxMP] JaxMP mailto:shull&jaxmp.com 2014-08-15
[Jerry_Whitaker] Jerry Whitaker mailto:jwhitaker&atsc.org 2008-10-27
[Jilles_Oldenbeuving] Jilles Oldenbeuving mailto:ojilles&gmail.com 2020-11-18
[Joachim_Kluemper] Joachim Kluemper mailto:ports&raikosoft.com 2008-03-19
[John_Keaveney] John Keaveney mailto:johnkeaveney&targusinfo.com
[John_Williams] John Williams mailto:John.H.Williams&hp.com 2007-06
[Kenneth_Flynn] Kenneth Flynn mailto:flynnk&darkcornersoftware.com 2009-10-14
[Markus_Loeffler] Markus Loeffler mailto:markus.loeffler&thomson.net 2009-02-17
[Matt_Christiano_2] Matt Christiano mailto:matt&reprisesoftware.com 2008-07-28
[Matt_Christiano_3] Matt Christiano Reprise Software, Inc. mailto:matt&reprisesoftware.com 2012-11-06
[Olivier_Guezenec] Olivier Guezenec mailto:olivier.guezenec&cogilab.com 2006-12
[OPC_Foundation] OPC Foundation mailto:tcb&opcfoundation.org 2017-05-23
[Paul_Moore] Paul Moore mailto:paul.moore&centrify.com 2009-10-28
[Randy_Armstrong] Randy Armstrong mailto:tcb&opcfoundation.org 2017-05-23
[Ravi_Kollipara] Ravi Kollipara mailto:ravi.kollipara&actifio.com 2010-06-18
[Reprise_Software_Inc] Reprise Software, Inc. mailto:matt&reprisesoftware.com 2012-11-06
[Stephen_Hull] Stephen Hull JaxMP mailto:shull&jaxmp.com 2014-08-15
[Thomas_Russell] Thomas Russell mailto:trussell&scte.org 2005-05
[Toerless_Eckert_2] Toerless Eckert Cisco Systems mailto:eckert&cisco.com 2014-06-06
[William_Phelps] William Phelps mailto:william&meier-phelps.com 2010-03-22