Service Name and Transport Protocol Port Number Registry

Last Updated
2014-04-17
Expert(s)
TCP/UDP: Joe Touch; Eliot Lear, Allison Mankin, Markku Kojo, Kumiko Ono, Martin Stiemerling, Lars Eggert, Alexey Melnikov and Wes Eddy; 
    DCCP: Eddie Kohler; SCTP: Allison Mankin
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]. System Ports are assigned by IETF
process for standards-track protocols, as per [RFC6335].  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.                                                   *
************************************************************************
Available Formats

CSV

XML

HTML

Plain text
Service Name Port Number Transport Protocol Description Assignee Contact Registration Date Modification Date Reference Service Code Known Unauthorized Uses Assignment Notes
afpovertcp 548 udp AFP over TCP [Leland_Wallace] [Leland_Wallace] Defined TXT keys: u=<username> p=<password> path=<path>
idfp 549 tcp IDFP [Ramana_Kovi] [Ramana_Kovi]
idfp 549 udp IDFP [Ramana_Kovi] [Ramana_Kovi]
new-rwho 550 tcp new-who [n/a]
new-rwho 550 udp new-who [n/a]
cybercash 551 tcp cybercash [Donald_E_Eastlake] [Donald_E_Eastlake] [RFC1898]
cybercash 551 udp cybercash [Donald_E_Eastlake] [Donald_E_Eastlake] [RFC1898]
devshr-nts 552 tcp DeviceShare [Benjamin_Rosenberg] [Benjamin_Rosenberg]
devshr-nts 552 udp DeviceShare [Benjamin_Rosenberg] [Benjamin_Rosenberg]
pirp 553 tcp pirp [D_J_Bernstein] [D_J_Bernstein]
pirp 553 udp pirp [D_J_Bernstein] [D_J_Bernstein]
rtsp 554 tcp Real Time Streaming Protocol (RTSP) [Rob_Lanphier] [Rob_Lanphier]
rtsp 554 udp Real Time Streaming Protocol (RTSP) [Rob_Lanphier] [Rob_Lanphier]
dsf 555 tcp
dsf 555 udp
remotefs 556 tcp rfs server
remotefs 556 udp rfs server
openvms-sysipc 557 tcp openvms-sysipc [Alan_Potter] [Alan_Potter]
openvms-sysipc 557 udp openvms-sysipc [Alan_Potter] [Alan_Potter]
sdnskmp 558 tcp SDNSKMP
sdnskmp 558 udp SDNSKMP
teedtap 559 tcp TEEDTAP [Charlie_Limoges] [Charlie_Limoges]
teedtap 559 udp TEEDTAP [Charlie_Limoges] [Charlie_Limoges]
rmonitor 560 tcp rmonitord
rmonitor 560 udp rmonitord
monitor 561 tcp
monitor 561 udp
chshell 562 tcp chcmd
chshell 562 udp chcmd
nntps 563 tcp nntp protocol over TLS/SSL (was snntp) [Kipp_E_B_Hickman_2] [Kipp_E_B_Hickman_2]
nntps 563 udp nntp protocol over TLS/SSL (was snntp) [Kipp_E_B_Hickman_2] [Kipp_E_B_Hickman_2]
9pfs 564 tcp plan 9 file service
9pfs 564 udp plan 9 file service
whoami 565 tcp whoami
whoami 565 udp whoami
streettalk 566 tcp streettalk
streettalk 566 udp streettalk
banyan-rpc 567 tcp banyan-rpc [Tom_Lemaire] [Tom_Lemaire]
banyan-rpc 567 udp banyan-rpc [Tom_Lemaire] [Tom_Lemaire]
ms-shuttle 568 tcp microsoft shuttle [Rudolph_Balaz] [Rudolph_Balaz]
ms-shuttle 568 udp microsoft shuttle [Rudolph_Balaz] [Rudolph_Balaz]
ms-rome 569 tcp microsoft rome [Rudolph_Balaz] [Rudolph_Balaz]
ms-rome 569 udp microsoft rome [Rudolph_Balaz] [Rudolph_Balaz]
meter 570 tcp demon
meter 570 udp demon
meter 571 tcp udemon
meter 571 udp udemon
sonar 572 tcp sonar [Keith_Moore] [Keith_Moore]
sonar 572 udp sonar [Keith_Moore] [Keith_Moore]
banyan-vip 573 tcp banyan-vip [Denis_Leclerc] [Denis_Leclerc]
banyan-vip 573 udp banyan-vip [Denis_Leclerc] [Denis_Leclerc]
ftp-agent 574 tcp FTP Software Agent System [Michael_S_Greenberg] [Michael_S_Greenberg]
ftp-agent 574 udp FTP Software Agent System [Michael_S_Greenberg] [Michael_S_Greenberg]
vemmi 575 tcp VEMMI [Daniel_Mavrakis_2] [Daniel_Mavrakis_2]
vemmi 575 udp VEMMI [Daniel_Mavrakis_2] [Daniel_Mavrakis_2]
ipcd 576 tcp ipcd
ipcd 576 udp ipcd
vnas 577 tcp vnas
vnas 577 udp vnas
ipdd 578 tcp ipdd [Jay_Farhat] [Jay_Farhat]
ipdd 578 udp ipdd [Jay_Farhat] [Jay_Farhat]
decbsrv 579 tcp decbsrv [Rudi_Martin] [Rudi_Martin]
decbsrv 579 udp decbsrv [Rudi_Martin] [Rudi_Martin]
sntp-heartbeat 580 tcp SNTP HEARTBEAT [Louis_Mamakos_2] [Louis_Mamakos_2]
sntp-heartbeat 580 udp SNTP HEARTBEAT [Louis_Mamakos_2] [Louis_Mamakos_2]
bdp 581 tcp Bundle Discovery Protocol [Gary_Malkin] [Gary_Malkin]
bdp 581 udp Bundle Discovery Protocol [Gary_Malkin] [Gary_Malkin]
scc-security 582 tcp SCC Security [Prashant_Dholakia] [Prashant_Dholakia]
scc-security 582 udp SCC Security [Prashant_Dholakia] [Prashant_Dholakia]
philips-vc 583 tcp Philips Video-Conferencing [Janna_Chang] [Janna_Chang]
philips-vc 583 udp Philips Video-Conferencing [Janna_Chang] [Janna_Chang]
keyserver 584 tcp Key Server [Gary_Howland] [Gary_Howland]
keyserver 584 udp Key Server [Gary_Howland] [Gary_Howland]
585 De-registered 2006-04-25 Use of 585 is not recommended, use 993 instead
password-chg 586 tcp Password Change
password-chg 586 udp Password Change
submission 587 tcp Message Submission 2011-11-17 [RFC6409]
submission 587 udp Message Submission 2011-11-17 [RFC6409]
cal 588 tcp CAL [Myron_Hattig] [Myron_Hattig]
cal 588 udp CAL [Myron_Hattig] [Myron_Hattig]
eyelink 589 tcp EyeLink [Dave_Stampe] [Dave_Stampe]
eyelink 589 udp EyeLink [Dave_Stampe] [Dave_Stampe]
tns-cml 590 tcp TNS CML [Jerome_Albin] [Jerome_Albin]
tns-cml 590 udp TNS CML [Jerome_Albin] [Jerome_Albin]
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]
eudora-set 592 tcp Eudora Set [Randall_Gellens] [Randall_Gellens]
eudora-set 592 udp Eudora Set [Randall_Gellens] [Randall_Gellens]
http-rpc-epmap 593 tcp HTTP RPC Ep Map [Edward_Reus] [Edward_Reus]
http-rpc-epmap 593 udp HTTP RPC Ep Map [Edward_Reus] [Edward_Reus]
tpip 594 tcp TPIP [Brad_Spear] [Brad_Spear]
tpip 594 udp TPIP [Brad_Spear] [Brad_Spear]
cab-protocol 595 tcp CAB Protocol [Winston_Hetherington] [Winston_Hetherington]
cab-protocol 595 udp CAB Protocol [Winston_Hetherington] [Winston_Hetherington]
smsd 596 tcp SMSD [Wayne_Barlow] [Wayne_Barlow]
smsd 596 udp SMSD [Wayne_Barlow] [Wayne_Barlow]
ptcnameservice 597 tcp PTC Name Service [Yuri_Machkasov] [Yuri_Machkasov]
ptcnameservice 597 udp PTC Name Service [Yuri_Machkasov] [Yuri_Machkasov]
sco-websrvrmg3 598 tcp SCO Web Server Manager 3 [Simon_Baldwin] [Simon_Baldwin]
sco-websrvrmg3 598 udp SCO Web Server Manager 3 [Simon_Baldwin] [Simon_Baldwin]
acp 599 tcp Aeolon Core Protocol [Michael_Alyn_Miller] [Michael_Alyn_Miller]

People

ID Name Contact URI Last Updated
[Alan_Potter] Alan Potter mailto:potter&movies.enet.dec.com
[Benjamin_Rosenberg] Benjamin Rosenberg mailto:brosenberg&advsyscon.com
[Brad_Spear] Brad Spear mailto:spear&platinum.com
[Charlie_Limoges] Charlie Limoges mailto:Charlie.Limoges&gdc4s.com
[Clay_Maeckel] Clay Maeckel mailto:clay_maeckel&filemaker.com
[D_J_Bernstein] D. J. Bernstein mailto:djb&silverton.berkeley.edu
[Daniel_Mavrakis_2] Daniel Mavrakis mailto:mavrakis&mctel.fr
[Dave_Stampe] Dave Stampe mailto:dstampe&psych.toronto.edu
[Denis_Leclerc] Denis Leclerc mailto:DLeclerc&banyan.com
[Donald_E_Eastlake] Donald E. Eastlake 3rd mailto:d3e3e3&gmail.com
[Edward_Reus] Edward Reus mailto:edwardr&microsoft.com
[Gary_Howland] Gary Howland mailto:gary&systemics.com
[Gary_Malkin] Gary Malkin mailto:gmalkin&xylogics.com
[Janna_Chang] Janna Chang mailto:janna&pmc.philips.com
[Jay_Farhat] Jay Farhat mailto:jfarhat&ipass.com
[Jerome_Albin] Jerome Albin mailto:albin&taec.enet.dec.com
[Keith_Moore] Keith Moore mailto:moore&cs.utk.edu
[Kipp_E_B_Hickman_2] Kipp E.B. Hickman mailto:kipp&netscape.com
[Leland_Wallace] Leland Wallace mailto:randall&apple.com
[Louis_Mamakos_2] Louis Mamakos mailto:louie&uu.net
[Michael_Alyn_Miller] Michael Alyn Miller mailto:iana&aeolon.com
[Michael_S_Greenberg] Michael S. Greenberg mailto:arnoff&ftp.com
[Myron_Hattig] Myron Hattig mailto:Myron_Hattig&ccm.jf.intel.com
[Prashant_Dholakia] Prashant Dholakia mailto:prashant&semaphorecom.com
[Ramana_Kovi] Ramana Kovi mailto:ramana&kovi.com
[Randall_Gellens] Randall Gellens mailto:randy&qualcomm.com
[Rob_Lanphier] Rob Lanphier mailto:robla&prognet.com
[Rudi_Martin] Rudi Martin mailto:movies::martin%22@movies.enet.dec.com
[Rudolph_Balaz] Rudolph Balaz mailto:rudolphb&microsoft.com
[Simon_Baldwin] Simon Baldwin mailto:simonb&sco.com
[Tom_Lemaire] Tom Lemaire mailto:toml&banyan.com
[Wayne_Barlow] Wayne Barlow mailto:web&unx.dec.com
[Winston_Hetherington] Winston Hetherington
[Yuri_Machkasov] Yuri Machkasov mailto:yuri&ptc.com