Internet Assigned Numbers Authority

Service Name and Transport Protocol Port Number Registry

Last Updated
2024-03-18
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
8314-8319 Unassigned
tnp-discover 8320 tcp Thin(ium) Network Protocol [Aly_Orady] [Aly_Orady] 2007-08-07
tnp-discover 8320 udp Thin(ium) Network Protocol [Aly_Orady] [Aly_Orady] 2007-08-07
tnp 8321 tcp Thin(ium) Network Protocol [Aly_Orady] [Aly_Orady] 2007-08-07
tnp 8321 udp Thin(ium) Network Protocol [Aly_Orady] [Aly_Orady] 2007-08-07
garmin-marine 8322 tcp Garmin Marine [Garmin_International_Inc] [Nathan_Karstens] 2015-07-23
garmin-marine 8322 udp Garmin Marine [Garmin_International_Inc] [Nathan_Karstens] 2015-07-23
8323-8350 Unassigned
server-find 8351 tcp Server Find [Chris_Brown] [Chris_Brown]
server-find 8351 udp Server Find [Chris_Brown] [Chris_Brown]
8352-8375 Unassigned
cruise-enum 8376 tcp Cruise ENUM [Steve_Husak] [Steve_Husak]
cruise-enum 8376 udp Cruise ENUM [Steve_Husak] [Steve_Husak]
cruise-swroute 8377 tcp Cruise SWROUTE [Steve_Husak] [Steve_Husak]
cruise-swroute 8377 udp Cruise SWROUTE [Steve_Husak] [Steve_Husak]
cruise-config 8378 tcp Cruise CONFIG [Steve_Husak] [Steve_Husak]
cruise-config 8378 udp Cruise CONFIG [Steve_Husak] [Steve_Husak]
cruise-diags 8379 tcp Cruise DIAGS [Steve_Husak] [Steve_Husak]
cruise-diags 8379 udp Cruise DIAGS [Steve_Husak] [Steve_Husak]
cruise-update 8380 tcp Cruise UPDATE [Steve_Husak] [Steve_Husak]
cruise-update 8380 udp Cruise UPDATE [Steve_Husak] [Steve_Husak]
8381-8382 Unassigned
m2mservices 8383 tcp M2m Services [Carlos_Arteaga_2] [Carlos_Arteaga_2] 2004-11
m2mservices 8383 udp M2m Services [Carlos_Arteaga_2] [Carlos_Arteaga_2] 2004-11
marathontp 8384 udp Marathon Transport Protocol [Inertia_Systemes] [Jasmin_Blouin] 2015-06-11
8384 tcp Reserved
8385-8399 Unassigned
cvd 8400 tcp cvd [Aaron_Bilbrey] [Aaron_Bilbrey]
cvd 8400 udp cvd [Aaron_Bilbrey] [Aaron_Bilbrey]
sabarsd 8401 tcp sabarsd [Aaron_Bilbrey] [Aaron_Bilbrey]
sabarsd 8401 udp sabarsd [Aaron_Bilbrey] [Aaron_Bilbrey]
abarsd 8402 tcp abarsd [Aaron_Bilbrey] [Aaron_Bilbrey]
abarsd 8402 udp abarsd [Aaron_Bilbrey] [Aaron_Bilbrey]
admind 8403 tcp admind [Aaron_Bilbrey] [Aaron_Bilbrey]
admind 8403 udp admind [Aaron_Bilbrey] [Aaron_Bilbrey]
svcloud 8404 tcp SuperVault Cloud [Nine_Technology_LLC] [Alex_Stoev] 2009-09-14 2011-08-01
8404 udp Reserved
svbackup 8405 tcp SuperVault Backup [Nine_Technology_LLC] [Alex_Stoev] 2009-09-14 2011-08-01
8405 udp Reserved
8406-8414 Unassigned
dlpx-sp 8415 tcp Delphix Session Protocol [Delphix_Corp] [Peng_Dai] 2012-11-01
8415 udp Reserved
espeech 8416 tcp eSpeech Session Protocol [Scott_Tarone] [Scott_Tarone] 2002-11
espeech 8416 udp eSpeech Session Protocol [Scott_Tarone] [Scott_Tarone] 2002-11
espeech-rtp 8417 tcp eSpeech RTP Protocol [Scott_Tarone] [Scott_Tarone] 2003-04
espeech-rtp 8417 udp eSpeech RTP Protocol [Scott_Tarone] [Scott_Tarone] 2003-04
8418-8422 Unassigned
aritts 8423 tcp Aristech text-to-speech server [Aristech_GmbH] [Martin_Mende] 2017-03-30 2022-02-22
8423 udp Reserved
8424-8431 Unassigned
pgbackrest 8432 tcp PostgreSQL Backup [David_Steele] [David_Steele] 2022-01-26
8432 udp Reserved
8433 tcp Reserved
aws-as2 8433 udp Non Persistent Desktop and Application Streaming [Amazon.com_Services_LLC] [Ivan_O_Mahony] 2022-11-07
8434-8441 Unassigned
cybro-a-bus 8442 tcp CyBro A-bus Protocol [Damir_Skrjanec] [Damir_Skrjanec] 2007-05
cybro-a-bus 8442 udp CyBro A-bus Protocol [Damir_Skrjanec] [Damir_Skrjanec] 2007-05
pcsync-https 8443 tcp PCsync HTTPS
pcsync-https 8443 udp PCsync HTTPS
pcsync-http 8444 tcp PCsync HTTP [Katy_Lynn_McCullough] [Katy_Lynn_McCullough]
pcsync-http 8444 udp PCsync HTTP [Katy_Lynn_McCullough] [Katy_Lynn_McCullough]
copy 8445 tcp Port for copy peer sync feature [Copy] [Jason_Dictos] 2012-09-19
copy-disc 8445 udp Port for copy discovery [Copy] [Jason_Dictos] 2012-09-19
8446-8447 Unassigned
matrix-fed 8448 tcp Matrix Federation Protocol [The_Matrix.org_Foundation_C.I.C.] [Travis_Ralston] 2023-08-04
8448 udp Reserved
8449 Unassigned
npmp 8450 tcp npmp [Ian_Chard] [Ian_Chard]
npmp 8450 udp npmp [Ian_Chard] [Ian_Chard]
8451-8456 Unassigned
nexentamv 8457 tcp Nexenta Management GUI [Nexenta] [Andrew_Galloway] 2012-12-07
8457 udp Reserved
8458-8469 Unassigned
cisco-avp 8470 tcp Cisco Address Validation Protocol [Cullen_Jennings] [Cullen_Jennings] 2009-02-13
8470 udp Reserved
pim-port 8471 tcp PIM over Reliable Transport [IESG] [IETF_Chair] 2008-08-21 [RFC6559]
pim-port 8471 sctp PIM over Reliable Transport [IESG] [IETF_Chair] 2008-08-21 [RFC6559]
8471 udp Reserved
otv 8472 tcp Overlay Transport Virtualization (OTV) [Dino_Farinacci] [Dino_Farinacci] 2008-01-07
otv 8472 udp Overlay Transport Virtualization (OTV) [Dino_Farinacci] [Dino_Farinacci] 2008-01-07
vp2p 8473 tcp Virtual Point to Point [Jerome_Grimbert] [Jerome_Grimbert]
vp2p 8473 udp Virtual Point to Point [Jerome_Grimbert] [Jerome_Grimbert]
noteshare 8474 tcp AquaMinds NoteShare [Michael_McNabb] [Michael_McNabb] 2005-10
noteshare 8474 udp AquaMinds NoteShare [Michael_McNabb] [Michael_McNabb] 2005-10
8475-8499 Unassigned
fmtp 8500 tcp Flight Message Transfer Protocol [Eivan_Cerasi] [Eivan_Cerasi] 2003-12
fmtp 8500 udp Flight Message Transfer Protocol [Eivan_Cerasi] [Eivan_Cerasi] 2003-12
cmtp-mgt 8501 tcp CYTEL Message Transfer Management
cmtp-av 8501 udp CYTEL Message Transfer Audio and Video [Frank_Jakel] [Frank_Jakel] 2011-04-29
ftnmtp 8502 tcp FTN Message Transfer Protocol [Yuri_Myakotin] [Yuri_Myakotin] 2014-01-07
8502 udp Reserved
lsp-self-ping 8503 udp MPLS LSP Self-Ping [IESG] [IETF_Chair] 2015-06-11 2016-02-01 [RFC7746]
8503 tcp Reserved
8504-8553 Unassigned
rtsp-alt 8554 tcp RTSP Alternate (see port 554) [Stephen_Casner_2] [Stephen_Casner_2]
rtsp-alt 8554 udp RTSP Alternate (see port 554) [Stephen_Casner_2] [Stephen_Casner_2]
d-fence 8555 tcp SYMAX D-FENCE [Thomas_Geisel] [Thomas_Geisel] 2003-01
d-fence 8555 udp SYMAX D-FENCE [Thomas_Geisel] [Thomas_Geisel] 2003-01
8556-8566 Unassigned
dof-tunnel 8567 tcp DOF Tunneling Protocol [OpenDOF] [Bryant_Eastham] 2005-08 2015-04-23
dof-tunnel 8567 udp DOF Tunneling Protocol [OpenDOF] [Bryant_Eastham] 2005-08 2015-04-23

Contact Information

ID Name Organization Contact URI Last Updated
[Aaron_Bilbrey] Aaron Bilbrey mailto:abilbrey&commvault.com
[Alex_Stoev] Alex Stoev Nine Technology, LLC mailto:astoev&ninetechnology.com 2011-08-01
[Aly_Orady] Aly Orady Atto Devices Inc. mailto:aly.orady&attodevices.com 2007-08-07
[Amazon.com_Services_LLC] Amazon.com Services LLC mailto:aws-iana&amazon.com 2022-11-07
[Andrew_Galloway] Andrew Galloway Nexenta mailto:andrew.galloway&nexenta.com 2012-12-07
[Aristech_GmbH] Aristech GmbH mailto:aritts&aristech.de 2022-02-22
[Bryant_Eastham] Bryant Eastham OenDOF mailto:protocol&opendof.org 2015-04-23
[Carlos_Arteaga_2] Carlos Arteaga mailto:carteaga&adelphia.net 2004-11
[Chris_Brown] Chris Brown mailto:chrisb&chancery.com
[Copy] Copy mailto:team&copy.com 2012-09-19
[Cullen_Jennings] Cullen Jennings mailto:fluffy&cisco.com 2010-02-03
[Damir_Skrjanec] Damir Skrjanec mailto:damir.skrjanec&cybrotech.co.uk 2007-05
[David_Steele] David Steele mailto:david&pgbackrest.org 2022-01-26
[Delphix_Corp] Delphix Corp mailto:peng.dai&delphix.com 2012-11-01
[Dino_Farinacci] Dino Farinacci mailto:dino&cisco.com 2008-08-21
[Eivan_Cerasi] Eivan Cerasi mailto:eivan.cerasi&eurocontrol.int 2022-08-08
[Frank_Jakel] Frank Jäkel mailto:Frank.Jaekel&cytel.de 2011-04-29
[Garmin_International_Inc] Garmin International, Inc." mailto:nettel&garmin.com 2015-07-23
[IESG] IESG mailto:iesg&ietf.org
[IETF_Chair] IETF Chair IETF mailto:chair&ietf.org
[Ian_Chard] Ian Chard mailto:ian&tanagra.demon.co.uk
[Inertia_Systemes] Inertia Systemes mailto:jasmin.blouin&inertiasystemes.com 2015-06-11
[Ivan_O_Mahony] Ivan O'Mahony Amazon.com Services LLC mailto:iomahony&amazon.com 2022-11-07
[Jasmin_Blouin] Jasmin Blouin Inertia Systemes mailto:jasmin.blouin&inertiasystemes.com 2015-06-11
[Jason_Dictos] Jason Dictos mailto:jdictos&barracuda.com 2012-09-19
[Jerome_Grimbert] Jerome Grimbert mailto:jerome.grimbert&atosorigin.com
[Katy_Lynn_McCullough] Katy Lynn McCullough mailto:KatyM&laplink.com
[Martin_Mende] Martin Mende Aristech GmbH mailto:martin.mende&aristech.de 2022-02-22
[Michael_McNabb] Michael McNabb mailto:michael&aquaminds.com 2005-10
[Nathan_Karstens] Nathan Karstens Garmin International, Inc. mailto:nettel&garmin.com 2015-07-23
[Nexenta] John S. Howard Nexenta mailto:jsh&nexenta.com 2012-12-07
[Nine_Technology_LLC] Nine Technology, LLC mailto:astoev&ninetechnology.com 2011-08-01
[OpenDOF] OpenDOF mailto:protocol&opendof.org 2015-04-23
[Peng_Dai] Peng Dai Delphix Corp mailto:peng.dai&delphix.com 2012-11-01
[Scott_Tarone] Scott Tarone mailto:starone&proactivethought.com 2003-04
[Stephen_Casner_2] Stephen Casner mailto:casner&precept.com
[Steve_Husak] Steve Husak mailto:portmaster&cruisetech.com
[The_Matrix.org_Foundation_C.I.C.] The Matrix.org Foundation C.I.C. mailto:matrix&matrix.org 2023-08-04
[Thomas_Geisel] Thomas Geisel mailto:tgeisel&symax.de 2003-01
[Travis_Ralston] Travis Ralston The Matrix.org Foundation C.I.C. mailto:travisr&matrix.org 2023-08-04
[Yuri_Myakotin] Yuri Myakotin mailto:yuri&ym-com.net 2014-01-07