Service Name and Transport Protocol Port Number Registry

Last Updated
2020-07-31
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
6159 udp Reserved
ecmp 6160 tcp Emerson Extensible Control and Management Protocol [Bryce_Beeston] [Bryce_Beeston] 2011-06-23
ecmp-data 6160 udp Emerson Extensible Control and Management Protocol Data [Bryce_Beeston] [Bryce_Beeston] 2011-06-23
patrol-ism 6161 tcp PATROL Internet Srv Mgr [Portnoy_Boxman] [Portnoy_Boxman] 2005-01
patrol-ism 6161 udp PATROL Internet Srv Mgr [Portnoy_Boxman] [Portnoy_Boxman] 2005-01
patrol-coll 6162 tcp PATROL Collector [Portnoy_Boxman] [Portnoy_Boxman] 2005-01
patrol-coll 6162 udp PATROL Collector [Portnoy_Boxman] [Portnoy_Boxman] 2005-01
pscribe 6163 tcp Precision Scribe Cnx Port [Robert_W_Hodges] [Robert_W_Hodges] 2005-01
pscribe 6163 udp Precision Scribe Cnx Port [Robert_W_Hodges] [Robert_W_Hodges] 2005-01
6164-6199 Unassigned
6201 tcp Reserved
thermo-calc 6201 udp Management of service nodes in a processing grid for thermodynamic calculations [Thermo-Calc_Software] [Thomas_Revesz] 2012-06-28
6210-6221 Unassigned
jeol-nsdtp-1 6241 tcp JEOL Network Services Data Transport Protocol 1 [Kevin_Wellwood] [Kevin_Wellwood] 2008-04-17
jeol-nsddp-1 6241 udp JEOL Network Services Dynamic Discovery Protocol 1 [Kevin_Wellwood] [Kevin_Wellwood] 2008-04-17
tl1-raw-ssl 6251 tcp TL1 Raw Over SSL/TLS [Jim_Humphreys] [Jim_Humphreys] 2008-01-29
tl1-raw-ssl 6251 udp TL1 Raw Over SSL/TLS [Jim_Humphreys] [Jim_Humphreys] 2008-01-29
tl1-ssh 6252 tcp TL1 over SSH [Jim_Humphreys] [Jim_Humphreys] 2008-01-25
tl1-ssh 6252 udp TL1 over SSH [Jim_Humphreys] [Jim_Humphreys] 2008-01-25
bmc-ctd-ldap 6301 tcp BMC CONTROL-D LDAP SERVER

IANA assigned this well-formed service name as a replacement for "bmc_ctd_ldap".
[Portnoy_Boxman_2] [Portnoy_Boxman_2] 2006-09
bmc_ctd_ldap 6301 tcp BMC CONTROL-D LDAP SERVER [Portnoy_Boxman_2] [Portnoy_Boxman_2] 2006-09 This entry is an alias to "bmc-ctd-ldap". This entry is now historic, not usable for use with many common service discovery mechanisms.
bmc-ctd-ldap 6301 udp BMC CONTROL-D LDAP SERVER

IANA assigned this well-formed service name as a replacement for "bmc_ctd_ldap".
[Portnoy_Boxman_2] [Portnoy_Boxman_2] 2006-09
bmc_ctd_ldap 6301 udp BMC CONTROL-D LDAP SERVER [Portnoy_Boxman_2] [Portnoy_Boxman_2] 2006-09 This entry is an alias to "bmc-ctd-ldap". This entry is now historic, not usable for use with many common service discovery mechanisms.
6307-6314 Unassigned
scup 6315 tcp Sensor Control Unit Protocol [Sven_Kopacz] [Sven_Kopacz] 2010-09-01
scup-disc 6315 udp Sensor Control Unit Protocol Discovery Protocol [Sven_Kopacz] [Sven_Kopacz] 2010-09-01
abb-escp 6316 tcp Ethernet Sensor Communications Protocol [Jaime_Antolin] [Jaime_Antolin] 2008-09-25
abb-escp 6316 udp Ethernet Sensor Communications Protocol [Jaime_Antolin] [Jaime_Antolin] 2008-09-25
nav-data-cmd 6317 tcp Navtech Radar Sensor Data Command [Navtech_Radar_Ltd] [Guy_Avery] 2013-02-20
nav-data 6317 udp Navtech Radar Sensor Data [Navtech_Radar_Ltd] [Guy_Avery] 2013-02-20
6318-6319 Unassigned
emp-server1 6321 tcp Empress Software Connectivity Server 1 [Srdjan_Holovac] [Srdjan_Holovac]
emp-server1 6321 udp Empress Software Connectivity Server 1 [Srdjan_Holovac] [Srdjan_Holovac]
6351-6354 Unassigned
6361-6362 Unassigned
6371-6378 Unassigned
6380-6381 Unassigned
clariion-evr01 6389 tcp clariion-evr01 [Dave_DesRoches] [Dave_DesRoches]
clariion-evr01 6389 udp clariion-evr01 [Dave_DesRoches] [Dave_DesRoches]
6391-6399 Unassigned
boe-was 6401 boe-was [Wade_Richards] [Wade_Richards] 2008-05-05
boe-resssvr1 6407 Business Objects Enterprise internal server [Wade_Richards] [Wade_Richards] 2008-05-05
boe-resssvr4 6410 Business Objects Enterprise internal server [Wade_Richards] [Wade_Richards] 2008-05-05
6411-6416 Unassigned
faxcomservice 6417 tcp Faxcom Message Service [Albert_Leung] [Albert_Leung] 2006-04
faxcomservice 6417 udp Faxcom Message Service [Albert_Leung] [Albert_Leung] 2006-04
syserverremote 6418 tcp SYserver remote commands [David_Ashkenazi] [David_Ashkenazi] 2010-03-23
6418 udp Reserved
svdrp 6419 tcp Simple VDR Protocol [Klaus_Schmidinger] [Klaus_Schmidinger] 2010-03-31
svdrp-disc 6419 udp Simple VDR Protocol Discovery [Klaus_Schmidinger] [Klaus_Schmidinger] 2015-05-08
nim-wan 6421 tcp NIM_WAN [Rik_Ditter] [Rik_Ditter] 2006-02
nim-wan 6421 udp NIM_WAN [Rik_Ditter] [Rik_Ditter] 2006-02
6422-6431 Unassigned
6441 Unassigned
ieee11073-20701 6464 tcp Port assignment for medical device communication in accordance to IEEE 11073-20701 [David_Gregorczyk] [David_Gregorczyk] 2017-03-02
ieee11073-20701 6464 udp Port assignment for medical device communication in accordance to IEEE 11073-20701 [David_Gregorczyk] [David_Gregorczyk] 2017-03-02
lvision-lm 6471 tcp LVision License Manager [Brian_McKinnon] [Brian_McKinnon]
lvision-lm 6471 udp LVision License Manager [Brian_McKinnon] [Brian_McKinnon]
servicetags 6481 tcp Service Tags [Peter_Schow] [Peter_Schow] 2007-01
servicetags 6481 udp Service Tags [Peter_Schow] [Peter_Schow] 2007-01
boks-servc 6501 udp BoKS Servc

IANA assigned this well-formed service name as a replacement for "boks_servc".
[Magnus_Nystrom] [Magnus_Nystrom]
boks_servc 6501 udp BoKS Servc [Magnus_Nystrom] [Magnus_Nystrom] This entry is an alias to "boks-servc". This entry is now historic, not usable for use with many common service discovery mechanisms.
mcer-port 6510 tcp MCER Port [Portnoy_Boxman] [Portnoy_Boxman]
mcer-port 6510 udp MCER Port [Portnoy_Boxman] [Portnoy_Boxman]
6511 tcp Reserved
dccp-udp 6511 udp Datagram Congestion Control Protocol Encapsulation for NAT Traversal [IESG] [IETF_Chair] [RFC6773]
6512-6512 Unassigned
netconf-tls 6513 tcp NETCONF over TLS [IESG] [IETF_Chair] 2015-04-15 [RFC7589]
6513 udp Reserved
syslog-tls 6514 tcp Syslog over TLS [RFC5425]
syslog-tls 6514 udp syslog over DTLS [RFC6012]
syslog-tls 6514 dccp syslog over DTLS [RFC6012]
elipse-rec 6515 tcp Elipse RPC Protocol [F_Englert] [F_Englert] 2007-09-17
elipse-rec 6515 udp Elipse RPC Protocol [F_Englert] [F_Englert] 2007-09-17
6516-6542 Unassigned
sum 6551 tcp Software Update Manager [Jan_Dirven] [Jan_Dirven] 2007-12-13
sum 6551 udp Software Update Manager [Jan_Dirven] [Jan_Dirven] 2007-12-13
6567 Reserved 2007-01 2011-08-26 This entry has been removed on 2011-08-26.
parsec-peer 6581 tcp Parsec Peer-to-Peer [Andreas_Varga] [Andreas_Varga]
parsec-peer 6581 udp Parsec Peer-to-Peer [Andreas_Varga] [Andreas_Varga]
mstmg-sstp 6601 tcp Microsoft Threat Management Gateway SSTP [Ori_Yosefi] [Ori_Yosefi] 2009-05-04
6601 udp Reserved
6603-6618 Unassigned
odette-ftps 6619 tcp ODETTE-FTP over TLS/SSL [Ieuan_Friend] [Ieuan_Friend] 2006-03 [RFC5024]
odette-ftps 6619 udp ODETTE-FTP over TLS/SSL [Ieuan_Friend] [Ieuan_Friend] 2006-03 [RFC5024]
kftp 6621 tcp Kerberos V5 FTP Control [Robert_J_Scott] [Robert_J_Scott] 2005-08
kftp 6621 udp Kerberos V5 FTP Control [Robert_J_Scott] [Robert_J_Scott] 2005-08
6631 Unassigned 2004-05-28
mpls-udp 6635 udp Encapsulate MPLS packets in UDP tunnels. [IESG] [IETF_Chair] 2015-02-10 [RFC7510]
mpls-udp-dtls 6636 udp Encapsulate MPLS packets in UDP tunnels with DTLS. [IESG] [IETF_Chair] 2015-02-10 [RFC7510]
6641-6652 Unassigned
p4p-portal 6671 tcp P4P Portal Service [Chris_Griffiths] [Chris_Griffiths] 2008-07-28
p4p-portal 6671 udp P4P Portal Service [Chris_Griffiths] [Chris_Griffiths] 2008-07-28
6691-6695 Unassigned
babel 6696 udp Babel Routing Protocol 2011-08-15 [RFC6126]
ircs-u 6697 tcp Internet Relay Chat via TLS/SSL 2014-02-11 [RFC7194]
kti-icad-srvr 6701 tcp KTI/ICAD Nameserver [Stanley_Knutson] [Stanley_Knutson]
kti-icad-srvr 6701 udp KTI/ICAD Nameserver [Stanley_Knutson] [Stanley_Knutson]
6701 sctp Unassigned 2010-01-26
frc-hp 6704 sctp ForCES HP (High Priority) channel [RFC5811]
frc-mp 6705 sctp ForCES MP (Medium Priority) channel [RFC5811]

Contact Information

ID Name Organization Contact URI Last Updated
[Albert_Leung] Albert Leung mailto:aleung&biscom.com 2006-04
[Andreas_Varga] Andreas Varga mailto:sid&parsec.org
[Brian_McKinnon] Brian McKinnon mailto:bmk&lvision.com
[Bryce_Beeston] Bryce Beeston mailto:bryce.beeston&emerson.com 2011-06-23
[Chris_Griffiths] Chris Griffiths mailto:chris_griffiths&cable.comcast.com 2008-07-28
[Dave_DesRoches] Dave DesRoches mailto:ddesroches&clariion.com
[David_Ashkenazi] David Ashkenazi mailto:david&synel.co.il 2010-03-23
[David_Gregorczyk] David Gregorczyk mailto:david.gregorczyk&draeger.com 2017-03-02
[F_Englert] Fl√°vio Englert mailto:flavio&elipse.com.br 2007-09-17
[Guy_Avery] Guy Avery Navtech Radar mailto:guy.avery&navtechradar.com 2013-02-20
[IESG] IESG mailto:iesg&ietf.org
[IETF_Chair] IETF Chair IETF mailto:chair&ietf.org
[Ieuan_Friend] Ieuan Friend mailto:ieuan.friend&dip.co.uk 2006-03
[Jaime_Antolin] Jaime Antolin mailto:jaime.antolin&ie.abb.com 2008-09-25
[Jan_Dirven] Jan Dirven mailto:jan.dirven&agfa.com 2007-12-13
[Jim_Humphreys] Jim Humphreys mailto:jhumphre&ciena.com 2008-01-29
[Kevin_Wellwood] Kevin Wellwood mailto:wellwood&jeol.com 2008-04-17
[Klaus_Schmidinger] Klaus Schmidinger mailto:Klaus.Schmidinger&tvdr.de 2010-03-31
[Magnus_Nystrom] Magnus Nystrom mailto:magnus&dynas.se
[Navtech_Radar_Ltd] Navtech Radar mailto:network.admin&navtechradar.com 2013-02-20
[Ori_Yosefi] Ori Yosefi mailto:Ori.Yosefi&microsoft.com 2009-05-04
[Peter_Schow] Peter Schow mailto:Peter.Schow&sun.com 2007-01
[Portnoy_Boxman] Portnoy Boxman mailto:portnoy_boxman&bmc.com 2005-01
[Portnoy_Boxman_2] Portnoy Boxman mailto:Portnoy_Boxman&bmc.com 2006-09
[Rik_Ditter] Rik Ditter mailto:managers&generationtechnologies.com 2006-02
[Robert_J_Scott] Robert J. Scott mailto:rob&hpcmo.hpc.mil 2005-08
[Robert_W_Hodges] Robert W Hodges mailto:iana&precdata.com 2005-01
[Srdjan_Holovac] Srdjan Holovac mailto:srdjan&empress.com
[Stanley_Knutson] Stanley Knutson mailto:Stanley.Knutson&ktiworld.com
[Sven_Kopacz] Sven Kopacz mailto:s.kopacz&controllerware.com 2010-09-01
[Thermo-Calc_Software] Thermo-Calc Software AB mailto:thomasr&thermocalc.se 2012-06-28
[Thomas_Revesz] Thomas Revesz Thermo-Calc Software AB mailto:thomasr&thermocalc.se 2012-06-28
[Wade_Richards] Wade Richards mailto:wade.richards&sap.com 2008-05-05