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
http 80 tcp World Wide Web HTTP [IESG] [IETF_Chair] 2021-10-01 [RFC9110] Defined TXT keys: u=<username> p=<password> path=<path to document>
http 80 udp World Wide Web HTTP [IESG] [IETF_Chair] 2021-10-01 [RFC9110] Defined TXT keys: u=<username> p=<password> path=<path to document>
www 80 tcp World Wide Web HTTP [IESG] [IETF_Chair] 2021-10-01 [RFC9110] This is a duplicate of the "http" service and should not be used for discovery purposes.
www 80 udp World Wide Web HTTP [IESG] [IETF_Chair] 2021-10-01 [RFC9110] This is a duplicate of the "http" service and should not be used for discovery purposes.
www-http 80 tcp World Wide Web HTTP [Tim_Berners_Lee] [Tim_Berners_Lee] This is a duplicate of the "http" service and should not be used for discovery purposes. u=<username> p=<password> path=<path to document> (see txtrecords.html#http) Known Subtypes: _printer NOTE: The meaning of this service type, though called just "http", actually denotes something more precise than just "any data transported using HTTP". The DNS-SD service type "http" should only be used to advertise content that: * is served over HTTP, * can be displayed by "typical" web browser client software, and * is intented primarily to be viewed by a human user. Of course, the definition of "typical web browser" is subjective, and may change over time, but for practical purposes the DNS-SD service type "http" can be understood as meaning "human-readable HTML content served over HTTP". In some cases other widely-supported content types may also be appropriate, such as plain text over HTTP, or JPEG image over HTTP. Content types not intented primarily for viewing by a human user, or not widely-supported in web browsing clients, should not be advertised as DNS-SD service type "http", even if they do happen to be transported over HTTP. Such types should be advertised as their own logical service type with their own DNS-SD service type, for example, XUL (XML User Interface Language) transported over HTTP is advertised explicitly as DNS-SD service type "xul-http".
www-http 80 udp World Wide Web HTTP [Tim_Berners_Lee] [Tim_Berners_Lee] This is a duplicate of the "http" service and should not be used for discovery purposes. u=<username> p=<password> path=<path to document> (see txtrecords.html#http) Known Subtypes: _printer NOTE: The meaning of this service type, though called just "http", actually denotes something more precise than just "any data transported using HTTP". The DNS-SD service type "http" should only be used to advertise content that: * is served over HTTP, * can be displayed by "typical" web browser client software, and * is intented primarily to be viewed by a human user. Of course, the definition of "typical web browser" is subjective, and may change over time, but for practical purposes the DNS-SD service type "http" can be understood as meaning "human-readable HTML content served over HTTP". In some cases other widely-supported content types may also be appropriate, such as plain text over HTTP, or JPEG image over HTTP. Content types not intented primarily for viewing by a human user, or not widely-supported in web browsing clients, should not be advertised as DNS-SD service type "http", even if they do happen to be transported over HTTP. Such types should be advertised as their own logical service type with their own DNS-SD service type, for example, XUL (XML User Interface Language) transported over HTTP is advertised explicitly as DNS-SD service type "xul-http".
http 80 sctp HTTP [Randall_Stewart] [Randall_Stewart] 2022-02-07 [RFC9260] Defined TXT keys: u=<username> p=<password> path=<path to document>
ris 180 tcp Intergraph [Dave_Buehmann] [Dave_Buehmann]
ris 180 udp Intergraph [Dave_Buehmann] [Dave_Buehmann]
http-mgmt 280 tcp http-mgmt [Adrian_Pell] [Adrian_Pell]
http-mgmt 280 udp http-mgmt [Adrian_Pell] [Adrian_Pell]
is99s 380 tcp TIA/EIA/IS-99 modem server [Frank_Quick] [Frank_Quick]
is99s 380 udp TIA/EIA/IS-99 modem server [Frank_Quick] [Frank_Quick]
iafdbase 480 tcp iafdbase [Rick_Yazwinski] [Rick_Yazwinski]
iafdbase 480 udp iafdbase [Rick_Yazwinski] [Rick_Yazwinski]
sntp-heartbeat 580 tcp SNTP HEARTBEAT [Louis_Mamakos_2] [Louis_Mamakos_2]
sntp-heartbeat 580 udp SNTP HEARTBEAT [Louis_Mamakos_2] [Louis_Mamakos_2]
http-alt 591 tcp FileMaker, Inc. - HTTP Alternate (see Port 80) [Clay_Maeckel] [Clay_Maeckel]
http-alt 591 udp FileMaker, Inc. - HTTP Alternate (see Port 80) [Clay_Maeckel] [Clay_Maeckel]
ipp 631 tcp IPP (Internet Printing Protocol) [IESG] [IETF_Chair] 2018-07-06 [RFC8011] Defined TXT keys: See BonjourPrinting.pdf.
ipp 631 udp IPP (Internet Printing Protocol) [IESG] [IETF_Chair] 2018-07-06 [RFC8011] Defined TXT keys: See BonjourPrinting.pdf.
ipps 631 tcp Internet Printing Protocol over HTTPS [IESG] [IETF_Chair] 2018-07-06 [RFC8011]
entrust-aaas 680 tcp entrust-aaas
entrust-aaas 680 udp entrust-aaas
wpgs 780 tcp [Josyula_R_Rao] [Josyula_R_Rao]
wpgs 780 udp [Josyula_R_Rao] [Josyula_R_Rao]
mdbs-daemon 800 tcp

IANA assigned this well-formed service name as a replacement for "mdbs_daemon".
mdbs_daemon 800 tcp This entry is an alias to "mdbs-daemon". This entry is now historic, not usable for use with many common service discovery mechanisms.
mdbs-daemon 800 udp

IANA assigned this well-formed service name as a replacement for "mdbs_daemon".
mdbs_daemon 800 udp This entry is an alias to "mdbs-daemon". This entry is now historic, not usable for use with many common service discovery mechanisms.
device 801 tcp
device 801 udp
mbap-s 802 tcp Modbus Application Protocol Secure [modbus.org] [Dennis_Dube] 2014-06-10
mbap-s 802 udp Modbus Application Protocol Secure [modbus.org] [Dennis_Dube] 2014-06-10
803-809 Unassigned
domain-s 853 udp DNS query-response protocol run over DTLS or QUIC [IESG] [IETF_Chair] 2015-10-08 2022-04-01 [RFC7858][RFC8094][RFC9250]
webpush 1001 tcp HTTP Web Push [IESG] [IETF_Chair] 2016-11-01 [RFC8030]
socks 1080 tcp Socks [Ying_Da_Lee] [Ying_Da_Lee]
socks 1080 udp Socks [Ying_Da_Lee] [Ying_Da_Lee]
mc-client 1180 tcp Millicent Client Proxy [Steve_Glassman] [Steve_Glassman]
mc-client 1180 udp Millicent Client Proxy [Steve_Glassman] [Steve_Glassman]
pictrography 1280 tcp Pictrography [Takashi_Hoshino] [Takashi_Hoshino]
pictrography 1280 udp Pictrography [Takashi_Hoshino] [Takashi_Hoshino]
telesis-licman 1380 tcp Telesis Network License Manager [Karl_Schendel_Jr] [Karl_Schendel_Jr]
telesis-licman 1380 udp Telesis Network License Manager [Karl_Schendel_Jr] [Karl_Schendel_Jr]
pacerforum 1480 tcp PacerForum [Peter_Caswell] [Peter_Caswell]
pacerforum 1480 udp PacerForum [Peter_Caswell] [Peter_Caswell]
tn-tl-r1 1580 tcp tn-tl-r1
tn-tl-r2 1580 udp tn-tl-r2 [Ed_Kress] [Ed_Kress]
microcom-sbp 1680 tcp microcom-sbp [Boris_B_Maiden] [Boris_B_Maiden]
microcom-sbp 1680 udp microcom-sbp [Boris_B_Maiden] [Boris_B_Maiden]
dpkeyserv 1780 tcp dpkeyserv [Yasunari_Gon_Yamasit] [Yasunari_Gon_Yamasit]
dpkeyserv 1780 udp dpkeyserv [Yasunari_Gon_Yamasit] [Yasunari_Gon_Yamasit]
ansys-lm 1800 tcp ANSYS-License manager [Suzanne_Lorrin_2] [Suzanne_Lorrin_2]
ansys-lm 1800 udp ANSYS-License manager [Suzanne_Lorrin_2] [Suzanne_Lorrin_2]
msmq 1801 tcp Microsoft Message Que [Amnon_Horowitz] [Amnon_Horowitz]
msmq 1801 udp Microsoft Message Que [Amnon_Horowitz] [Amnon_Horowitz]
concomp1 1802 tcp ConComp1 [Ed_Vincent] [Ed_Vincent]
concomp1 1802 udp ConComp1 [Ed_Vincent] [Ed_Vincent]
hp-hcip-gwy 1803 tcp HP-HCIP-GWY [Allen_Baker] [Allen_Baker]
hp-hcip-gwy 1803 udp HP-HCIP-GWY [Allen_Baker] [Allen_Baker]
enl 1804 tcp ENL [Brian_Olson] [Brian_Olson]
enl 1804 udp ENL [Brian_Olson] [Brian_Olson]
enl-name 1805 tcp ENL-Name [Brian_Olson] [Brian_Olson]
enl-name 1805 udp ENL-Name [Brian_Olson] [Brian_Olson]
musiconline 1806 tcp Musiconline [Craig_Weeks] [Craig_Weeks]
musiconline 1806 udp Musiconline [Craig_Weeks] [Craig_Weeks]
fhsp 1807 tcp Fujitsu Hot Standby Protocol [Eiki_Iwata] [Eiki_Iwata]
fhsp 1807 udp Fujitsu Hot Standby Protocol [Eiki_Iwata] [Eiki_Iwata]
oracle-vp2 1808 tcp Oracle-VP2 [Craig_Fowler] [Craig_Fowler]
oracle-vp2 1808 udp Oracle-VP2 [Craig_Fowler] [Craig_Fowler]
oracle-vp1 1809 tcp Oracle-VP1 [Craig_Fowler] [Craig_Fowler]
oracle-vp1 1809 udp Oracle-VP1 [Craig_Fowler] [Craig_Fowler]
vsat-control 1880 tcp Gilat VSAT Control [Yariv_Kaplan] [Yariv_Kaplan]
vsat-control 1880 udp Gilat VSAT Control [Yariv_Kaplan] [Yariv_Kaplan]
pearldoc-xact 1980 tcp PearlDoc XACT [Chris_Vertonghen] [Chris_Vertonghen]
pearldoc-xact 1980 udp PearlDoc XACT [Chris_Vertonghen] [Chris_Vertonghen]
autodesk-nlm 2080 tcp Autodesk NLM (FLEXlm) [Greg_Suppes] [Greg_Suppes]
autodesk-nlm 2080 udp Autodesk NLM (FLEXlm) [Greg_Suppes] [Greg_Suppes]
mc-gt-srv 2180 tcp Millicent Vendor Gateway Server [Steve_Glassman] [Steve_Glassman]
mc-gt-srv 2180 udp Millicent Vendor Gateway Server [Steve_Glassman] [Steve_Glassman]
lnvpoller 2280 tcp LNVPOLLER
lnvpoller 2280 udp LNVPOLLER
etcd-server 2380 tcp etcd server to server communication [CoreOS] [Brian_Harrington] 2014-07-09
2380 udp Reserved
powerexchange 2480 tcp Informatica PowerExchange Listener [Informatica] [Philip_Line] 2023-03-13
powerexchange 2480 udp Informatica PowerExchange Listener [Informatica] [Philip_Line] 2023-03-13
tributary 2580 tcp Tributary [Louis_Lu] [Louis_Lu]
tributary 2580 udp Tributary [Louis_Lu] [Louis_Lu]
pxc-sapxom 2680 tcp pxc-sapxom [Hideki_Kiriyama] [Hideki_Kiriyama]
pxc-sapxom 2680 udp pxc-sapxom [Hideki_Kiriyama] [Hideki_Kiriyama]
lbc-control 2780 tcp LBC Control [Keiji_Michine] [Keiji_Michine]
lbc-control 2780 udp LBC Control [Keiji_Michine] [Keiji_Michine]
acc-raid 2800 tcp ACC RAID [Scott_St_Clair] [Scott_St_Clair]
acc-raid 2800 udp ACC RAID [Scott_St_Clair] [Scott_St_Clair]
igcp 2801 tcp IGCP [David_Hampson] [David_Hampson]
igcp 2801 udp IGCP [David_Hampson] [David_Hampson]
veritas-tcp1 2802 tcp Veritas TCP1
veritas-udp1 2802 udp Veritas UDP1 [Russ_Thrasher] [Russ_Thrasher]
btprjctrl 2803 tcp btprjctrl [Huw_Thomas] [Huw_Thomas]

Contact Information

ID Name Organization Contact URI Last Updated
[Adrian_Pell] Adrian Pell mailto:PELL_ADRIAN/HP-UnitedKingdom_om6@hplb.hpl.hp.com
[Allen_Baker] Allen Baker mailto:abaker&boi.hp.com
[Amnon_Horowitz] Amnon Horowitz mailto:amnonh&microsoft.com
[Boris_B_Maiden] Boris B. Maiden mailto:Boris_Maiden&smtp.microcom.com
[Brian_Harrington] Brian Harrington CoreOS mailto:brian.harrington&coreos.com 2014-07-09
[Brian_Olson] Brian Olson mailto:briolson&pacbell.net
[Chris_Vertonghen] Chris Vertonghen mailto:chrisv&pearldoc.com
[Clay_Maeckel] Clay Maeckel mailto:clay&claris.com 2023-09-12
[CoreOS] CoreOS mailto:brian.harrington&coreos.com 2014-07-09
[Craig_Fowler] Craig Fowler mailto:cfowler&us.oracle.com
[Craig_Weeks] Craig Weeks mailto:cweeks&syspace.co.uk
[Dave_Buehmann] Dave Buehmann mailto:ingr!daveb&uunet.uu.net
[David_Hampson] David Hampson mailto:davidha&codemasters.com
[Dennis_Dube] Dennis Dube mailto:dennis.dube&schneider-electric.com 2014-06-10
[Ed_Kress] Ed Kress mailto:eskress&thinknet.com
[Ed_Vincent] Ed Vincent mailto:edv&concomp.com
[Eiki_Iwata] Eiki Iwata mailto:eiki&nd.net.fujitsu.co.jp
[Frank_Quick] Frank Quick mailto:fquick&qualcomm.com
[Greg_Suppes] Greg Suppes mailto:greg.suppes&autodesk.com
[Hideki_Kiriyama] Hideki Kiriyama mailto:kiriyama&cp10.es.xerox.com
[Huw_Thomas] Huw Thomas mailto:huw.thomas&bt.com
[IESG] IESG mailto:iesg&ietf.org
[IETF_Chair] IETF Chair IETF mailto:chair&ietf.org
[Informatica] Informatica mailto:DLEnterpriseSupport&informatica.com 2023-03-13
[Josyula_R_Rao] Josyula R. Rao mailto:jrrao&watson.ibm.com
[Karl_Schendel_Jr] Karl Schendel, Jr. mailto:wiz&telesis.com
[Keiji_Michine] Keiji Michine mailto:michine&net.paso.fujitsu.co.jp
[Louis_Lu] Louis Lu mailto:LouisL&bristol.com
[Louis_Mamakos_2] Louis Mamakos mailto:louie&uu.net
[modbus.org] modbus.org mailto:rbelliardi&modbus.org 2014-06-10
[Peter_Caswell] Peter Caswell mailto:pfc&pacvax.pacersoft.com
[Philip_Line] Philip Line Informatica mailto:pline&informatica.com 2023-03-13
[Randall_Stewart] Randall Stewart IETF TSVWG mailto:rrs&lakerest.net
[Rick_Yazwinski] Rick Yazwinski mailto:ricky&solect.com
[Russ_Thrasher] Russ Thrasher mailto:Russell.Thrasher&veritas.com
[Scott_St_Clair] Scott St. Clair mailto:stclair&ntc.adaptec.com
[Steve_Glassman] Steve Glassman mailto:steveg&pa.dec.com
[Suzanne_Lorrin_2] Suzanne Lorrin mailto:sml&ansyspo.ansys.com
[Takashi_Hoshino] Takashi Hoshino mailto:hoshino&miya.fujifilm.co.jp
[Tim_Berners_Lee] Tim Berners-Lee mailto:timbl&w3.org
[Yariv_Kaplan] Yariv Kaplan mailto:yarivk&gilat.com
[Yasunari_Gon_Yamasit] Yasunari Gon Yamasita mailto:yamasita&omronsoft.co.jp
[Ying_Da_Lee] Ying-Da Lee mailto:ylee&syl.dl.nec.com