Service Name and Transport Protocol Port Number Registry

Last Updated
2020-11-24
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
zigbee-bridge tcp ZigBee Bridge device [ZigBee_Alliances_Network_Device_working_group] [Leslie_Mulder] 2013-05-28 Defined TXT keys: see: http://www.zigbee.org/Standards/ZigBeeNetworkDevices
zigbee-bridge udp ZigBee Bridge device [ZigBee_Alliances_Network_Device_working_group] [Leslie_Mulder] 2013-05-28 Defined TXT keys: see: http://www.zigbee.org/Standards/ZigBeeNetworkDevices
zigbee-gateway tcp ZigBee IP Gateway [ZigBee_Alliances_Network_Device_working_group] [Leslie_Mulder] 2013-05-28 Defined TXT keys: see: http://www.zigbee.org/Standards/ZigBeeNetworkDevices
zigbee-gateway udp ZigBee IP Gateway [ZigBee_Alliances_Network_Device_working_group] [Leslie_Mulder] 2013-05-28 Defined TXT keys: see: http://www.zigbee.org/Standards/ZigBeeNetworkDevices
xadmin 9105 tcp Xadmin Control Service [Ariën Huisken <xadmin&huisken-systems.nl> 15 June 2009]
xadmin 9105 udp Xadmin Control Service [Ariën Huisken <xadmin&huisken-systems.nl> 15 June 2009]
certificates tcp Server for S/MIME and PGP certificates [IESG] [John_Levine] 2016-07-26 [draft-bhjl-x509-srv-01] Defined TXT keys: None
smimeca tcp Domain signing certificate for S/MIME keys [IESG] [John_Levine] 2016-07-26 [draft-bhjl-x509-srv-01] Defined TXT keys: None
gue 6080 udp Generic UDP Encapsulation [Tom_Herbert] [Tom_Herbert] 2015-03-05 [draft-herbert-gue]
usp-agt-coap udp USP discovery [Broadband_Forum] [Broadband_Forum] 2017-01-12 [http://www.broadband-forum.org/assignments] Defined TXT keys: see www.broadband-forum.org/assignments
usp-agt-http tcp USP discovery [Broadband_Forum] [Broadband_Forum] 2017-01-12 [http://www.broadband-forum.org/assignments] Defined TXT keys: see www.broadband-forum.org/assignments
usp-agt-mqtt tcp USP discovery [Broadband_Forum] [Broadband_Forum] 2020-03-17 [http://www.broadband-forum.org/assignments] Defined TXT keys: see www.broadband-forum.org/assignments
usp-agt-stomp tcp USP discovery [Broadband_Forum] [Broadband_Forum] 2017-01-12 [http://www.broadband-forum.org/assignments] Defined TXT keys: see www.broadband-forum.org/assignments
usp-agt-ws tcp USP discovery [Broadband_Forum] [Broadband_Forum] 2017-09-28 [http://www.broadband-forum.org/assignments] Defined TXT keys: see www.broadband-forum.org/assignments
usp-ctr-coap udp USP discovery [Broadband_Forum] [Broadband_Forum] 2017-01-12 [http://www.broadband-forum.org/assignments] Defined TXT keys: see www.broadband-forum.org/assignments
usp-ctr-http tcp USP discovery [Broadband_Forum] [Broadband_Forum] 2017-01-12 [http://www.broadband-forum.org/assignments] Defined TXT keys: see www.broadband-forum.org/assignments
usp-ctr-mqtt tcp USP discovery [Broadband_Forum] [Broadband_Forum] 2020-03-17 [http://www.broadband-forum.org/assignments] Defined TXT keys: see www.broadband-forum.org/assignments
usp-ctr-stomp tcp USP discovery [Broadband_Forum] [Broadband_Forum] 2017-01-12 [http://www.broadband-forum.org/assignments] Defined TXT keys: see www.broadband-forum.org/assignments
usp-ctr-ws tcp USP discovery [Broadband_Forum] [Broadband_Forum] 2017-09-28 [http://www.broadband-forum.org/assignments] Defined TXT keys: see www.broadband-forum.org/assignments
dsmcc-config 13818 tcp DSMCC Config [Tim_Addington] [Tim_Addington] [ISO/IEC 13818-6 MPEG-2 DSM-CC]
dsmcc-config 13818 udp DSMCC Config [Tim_Addington] [Tim_Addington] [ISO/IEC 13818-6 MPEG-2 DSM-CC]
dsmcc-session 13819 tcp DSMCC Session Messages [Tim_Addington] [Tim_Addington] [ISO/IEC 13818-6 MPEG-2 DSM-CC]
dsmcc-session 13819 udp DSMCC Session Messages [Tim_Addington] [Tim_Addington] [ISO/IEC 13818-6 MPEG-2 DSM-CC]
dsmcc-passthru 13820 tcp DSMCC Pass-Thru Messages [Tim_Addington] [Tim_Addington] [ISO/IEC 13818-6 MPEG-2 DSM-CC]
dsmcc-passthru 13820 udp DSMCC Pass-Thru Messages [Tim_Addington] [Tim_Addington] [ISO/IEC 13818-6 MPEG-2 DSM-CC]
dsmcc-download 13821 tcp DSMCC Download Protocol [Tim_Addington] [Tim_Addington] [ISO/IEC 13818-6 MPEG-2 DSM-CC]
dsmcc-download 13821 udp DSMCC Download Protocol [Tim_Addington] [Tim_Addington] [ISO/IEC 13818-6 MPEG-2 DSM-CC]
dsmcc-ccp 13822 tcp DSMCC Channel Change Protocol [Tim_Addington] [Tim_Addington] [ISO/IEC 13818-6 MPEG-2 DSM-CC]
dsmcc-ccp 13822 udp DSMCC Channel Change Protocol [Tim_Addington] [Tim_Addington] [ISO/IEC 13818-6 MPEG-2 DSM-CC]
x510 9877 tcp The X.510 wrapper protocol [ITU/TSB_(ITU-T_Study_Group_17)] [Erik_Andersen] 2019-09-30 [ITU-T X.510 / ISO/IEC 9584-11]
new-rwho 550 tcp new-who [n/a]
new-rwho 550 udp new-who [n/a]
brski-proxy tcp The Bootstrapping Remote Secure Key Infrastructures Proxy [IESG] [IETF_Chair] 2020-04-29 [RFC-ietf-anima-bootstrapping-keyinfra-44] Defined TXT keys: None
brski-registrar tcp The Bootstrapping Remote Secure Key Infrastructures Registrar [IESG] [IETF_Chair] 2020-04-29 [RFC-ietf-anima-bootstrapping-keyinfra-44] Defined TXT keys: None
grasp 7017 tcp GeneRic Autonomic Signaling Protocol [IESG] [IETF_Chair] 2017-04-28 2017-07-20 [RFC-ietf-anima-grasp-15]
grasp 7017 udp GeneRic Autonomic Signaling Protocol [IESG] [IETF_Chair] 2017-04-28 2017-07-20 [RFC-ietf-anima-grasp-15]
babel-dtls 6699 udp Babel Routing Protocol over DTLS [IESG] [IETF_Chair] 2020-09-04 [RFC-ietf-babel-dtls-10]
babel 6696 udp Babel Routing Protocol 2011-08-15 [RFC-ietf-babel-rfc6126bis-20]
dots-call-home tcp DOTS Signal Channel Call Home Protocol. The service name is used to construct the SRV service names "_dots-call-home._udp" and "_dots-call-home._tcp" for discovering Call Home DOTS clients used to establish DOTS signal channel call home. [IESG] [IETF_Chair] 2020-11-19 [RFC-ietf-dots-server-discovery-15] Defined TXT keys: None
dots-call-home udp DOTS Signal Channel Call Home Protocol. The service name is used to construct the SRV service names "_dots-call-home._udp" and "_dots-call-home._tcp" for discovering Call Home DOTS clients used to establish DOTS signal channel call home. [IESG] [IETF_Chair] 2020-11-19 [RFC-ietf-dots-server-discovery-15] Defined TXT keys: None
dots-data tcp DOTS Data Channel Protocol. The service name is used to construct the SRV service name "_dots-data._tcp" for discovering DOTS servers used to establish DOTS data channel. [IESG] [IETF_Chair] 2020-11-19 [RFC-ietf-dots-server-discovery-15] Defined TXT keys: None
help HELP command [RFC1078] TCP Port Service Multiplexer (TCPMUX)
snpp 444 tcp Simple Network Paging Protocol [RFC1568]
snpp 444 udp Simple Network Paging Protocol [RFC1568]
cybercash 551 tcp cybercash [Donald_E_Eastlake] [Donald_E_Eastlake] [RFC1898]
cybercash 551 udp cybercash [Donald_E_Eastlake] [Donald_E_Eastlake] [RFC1898]
rwhois 4321 tcp Remote Who Is [Mark_Kosters] [Mark_Kosters] [RFC2167]
rwhois 4321 udp Remote Who Is [Mark_Kosters] [Mark_Kosters] [RFC2167]
hsrp 1985 tcp Hot Standby Router Protocol [RFC2281]
hsrp 1985 udp Hot Standby Router Protocol [RFC2281]
matip-type-a 350 tcp MATIP Type A [Alain_Robert] [Alain_Robert] [RFC2351]
matip-type-a 350 udp MATIP Type A [Alain_Robert] [Alain_Robert] [RFC2351]
matip-type-b 351 tcp MATIP Type B [Alain_Robert] [Alain_Robert] [RFC2351]
matip-type-b 351 udp MATIP Type B [Alain_Robert] [Alain_Robert] [RFC2351]
radius 1812 tcp RADIUS [RFC2865]
radius 1812 udp RADIUS [RFC2865]
radius-acct 1813 tcp RADIUS Accounting [RFC2866]
radius-acct 1813 udp RADIUS Accounting [RFC2866]
sapv1 9875 tcp Session Announcement v1 [RFC2974]
sapv1 9875 udp Session Announcement v1 [RFC2974]
slp-notify 1847 tcp SLP Notification [RFC3082]
slp-notify 1847 udp SLP Notification [RFC3082]
rsip 4555 tcp RSIP Port [RFC3103]
rsip 4555 udp RSIP Port [RFC3103]
syslog-conn 601 tcp Reliable Syslog Service [RFC3195]
syslog-conn 601 udp Reliable Syslog Service [RFC3195]
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]
apex-edge 913 tcp APEX endpoint-relay service [RFC3340]
apex-edge 913 udp APEX endpoint-relay service [RFC3340]
imap 143 tcp Internet Message Access Protocol [IESG] [IETF_Chair] 2017-06-05 [RFC3501]
imap 143 udp Internet Message Access Protocol [IESG] [IETF_Chair] 2017-06-05 [RFC3501]
xmlrpc-beep 602 tcp XML-RPC over BEEP [RFC3529]
xmlrpc-beep 602 udp XML-RPC over BEEP [RFC3529]
gdoi 848 tcp GDOI [RFC3547]
gdoi 848 udp GDOI [RFC3547]
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]
radius-dynauth 3799 tcp RADIUS Dynamic Authorization [RFC3576]
radius-dynauth 3799 udp RADIUS Dynamic Authorization [RFC3576]
diameter 3868 sctp DIAMETER [RFC3588]
tunnel 604 tcp TUNNEL [RFC3620]
tunnel 604 udp TUNNEL [RFC3620]
mupdate 3905 tcp Mailbox Update (MUPDATE) protocol [RFC3656]
mupdate 3905 udp Mailbox Update (MUPDATE) protocol [RFC3656]
tbrpf 712 tcp TBRPF [RFC3684]
tbrpf 712 udp TBRPF [RFC3684]
sacred 1118 tcp SACRED [RFC3767]
sacred 1118 udp SACRED [RFC3767]
v5ua 5675 tcp V5UA application port [RFC3807]
v5ua 5675 udp V5UA application port [RFC3807]
v5ua 5675 sctp V5UA application port [RFC3807]
fcip-port 3225 tcp FCIP [RFC3821]
fcip-port 3225 udp FCIP [RFC3821]
slpda tcp Remote Service Discovery in the Service Location [RFC3832]

Contact Information

ID Name Organization Contact URI Last Updated
[Alain_Robert] Alain Robert mailto:arobert&par.sita.int
[Broadband_Forum] Broadband Forum mailto:help&broadband-forum.org 2020-03-17
[Donald_E_Eastlake] Donald E. Eastlake 3rd mailto:d3e3e3&gmail.com
[Erik_Andersen] Erik Andersen mailto:era&x500.eu 2019-08-13
[IESG] IESG mailto:iesg&ietf.org
[IETF_Chair] IETF Chair IETF mailto:chair&ietf.org
[ITU/TSB_(ITU-T_Study_Group_17)] ITU/TSB (ITU-T Study Group 17) mailto:tsbsg17&itu.int 2019-09-30
[John_Levine] John Levine mailto:standards&taugh.com 2016-07-26
[Leslie_Mulder] Leslie Mulder ZigBee Alliance's Network Device working group mailto:ljm&exegin.com 2013-05-28
[Mark_Kosters] Mark Kosters mailto:markk&internic.net
[Tim_Addington] Tim Addington mailto:Tim.Addington&sciatl.com
[Tom_Herbert] Tom Herbert mailto:tom&herbertland.com 2017-05-19
[ZigBee_Alliances_Network_Device_working_group] ZigBee Alliance's Network Device working group mailto:ljm&exegin.com 2013-05-28