Internet Assigned Numbers Authority

Service Name and Transport Protocol Port Number Registry

Last Updated
2024-12-20
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
44324-44443 Unassigned
cognex-dataman 44444 tcp Cognex DataMan Management Protocol [Cognex] [Mario_Joussen] 2012-08-28
44444 udp Reserved
acronis-backup 44445 tcp Acronis Backup Gateway service port [Acronis] [Kevin_Reed] 2019-11-25
44445 udp Reserved
44446-44543 Unassigned Known UNAUTHORIZED USE: Ports 44515 & 44516
44544 tcp Reserved
domiq 44544 udp DOMIQ Building Automation [DOMIQ_Sp_zoo] [Filip_Zawadiak] 2011-08-29
44545-44552 Unassigned
rbr-debug 44553 tcp REALbasic Remote Debug [Aaron_Ballman] [Aaron_Ballman] 2004-11
rbr-debug 44553 udp REALbasic Remote Debug [Aaron_Ballman] [Aaron_Ballman] 2004-11
44554-44599 Unassigned
44600 tcp Reserved
asihpi 44600 udp AudioScience HPI [Eliot_Blennerhassett] [Eliot_Blennerhassett] 2011-07-07
44601-44817 Unassigned
EtherNet-IP-2 44818 tcp EtherNet/IP messaging

IANA assigned this well-formed service name as a replacement for "EtherNet/IP-2".
[Brian_Batke_2] [Brian_Batke_2] New contact added for port 44818 on 2008-02-01
EtherNet/IP-2 44818 tcp EtherNet/IP messaging [Brian_Batke_2] [Brian_Batke_2] New contact added for port 44818 on 2008-02-01 This entry is an alias to "EtherNet-IP-2". This entry is now historic, not usable for use with many common service discovery mechanisms.
EtherNet-IP-2 44818 udp EtherNet/IP messaging

IANA assigned this well-formed service name as a replacement for "EtherNet/IP-2".
[Brian_Batke_2] [Brian_Batke_2] New contact added for port 44818 on 2008-02-01
EtherNet/IP-2 44818 udp EtherNet/IP messaging [Brian_Batke_2] [Brian_Batke_2] New contact added for port 44818 on 2008-02-01 This entry is an alias to "EtherNet-IP-2". This entry is now historic, not usable for use with many common service discovery mechanisms.
44819-44899 Unassigned
m3da 44900 tcp M3DA is used for efficient machine-to-machine communications [Eclipse_Foundation] [Didier_Lahay] 2013-02-22
m3da-disc 44900 udp M3DA Discovery is used for efficient machine-to-machine communications [Eclipse_Foundation] [Didier_Lahay] 2013-02-22
44901-44999 Unassigned
asmp 45000 tcp Nuance AutoStore Status Monitoring Protocol (data transfer) [Nuance_Communications_Inc4] [Andrew_Andrews] 2011-09-01 2017-04-26
asmp-mon 45000 udp Nuance AutoStore Status Monitoring Protocol (device monitoring) [Nuance_Communications_Inc4] [Andrew_Andrews] 2011-09-01 2017-04-26
asmps 45001 tcp Nuance AutoStore Status Monitoring Protocol (secure data transfer) [Nuance_Communications_Inc4] [Andrew_Andrews] 2011-09-01 2017-04-26
45001 udp Reserved
rs-status 45002 tcp Redspeed Status Monitor [Redspeed_International_Ltd] [Simon_Griffiths] 2015-03-10
45002 udp Reserved
45003-45044 Unassigned
synctest 45045 tcp Remote application control protocol [Eleks_Ltd] [Andriy_Skop] 2013-04-08
45045 udp Reserved
45046-45053 Unassigned
invision-ag 45054 tcp InVision AG [Matthias_Schroer] [Matthias_Schroer]
invision-ag 45054 udp InVision AG [Matthias_Schroer] [Matthias_Schroer]
45055-45513 Unassigned
cloudcheck 45514 tcp ASSIA CloudCheck WiFi Management System [ASSIA_Inc] [Leonardo_Dagum] 2016-08-29
cloudcheck-ping 45514 udp ASSIA CloudCheck WiFi Management keepalive [ASSIA_Inc] [Leonardo_Dagum] 2016-08-29
45515-45677 Unassigned
eba 45678 tcp EBA PRISE [Patrick_Kara] [Patrick_Kara]
eba 45678 udp EBA PRISE [Patrick_Kara] [Patrick_Kara]
45679-45823 Unassigned
dai-shell 45824 tcp Server for the DAI family of client-server products [Data_Access_Inc] [Adam_Robinson] 2012-04-30
45824 udp Reserved
qdb2service 45825 tcp Qpuncture Data Access Service [Michael_Yun] [Michael_Yun] 2007-10-24
qdb2service 45825 udp Qpuncture Data Access Service [Michael_Yun] [Michael_Yun] 2007-10-24
45826-45965 Unassigned
ssr-servermgr 45966 tcp SSRServerMgr [Jeremy_Gilliat] [Jeremy_Gilliat]
ssr-servermgr 45966 udp SSRServerMgr [Jeremy_Gilliat] [Jeremy_Gilliat]
45967-46335 Unassigned
inedo 46336 tcp Listen port used for Inedo agent communication [Inedo] [Steve_Dennis] 2016-01-12
46336 udp Reserved
46337-46997 Unassigned
spremotetablet 46998 tcp Connection between a desktop computer or server and a signature tablet to capture handwritten signatures [SOFTPRO_GmbH] [Christoph_Hipp] 2012-07-19 2013-08-02
46998 udp Reserved
mediabox 46999 tcp MediaBox Server [Alexander_Graef] [Alexander_Graef] 2004-11
mediabox 46999 udp MediaBox Server [Alexander_Graef] [Alexander_Graef] 2004-11
mbus 47000 tcp Message Bus [Dirk_Kutscher] [Dirk_Kutscher]
mbus 47000 udp Message Bus [Dirk_Kutscher] [Dirk_Kutscher]
winrm 47001 tcp Windows Remote Management Service [Ryan_Mack] [Ryan_Mack] 2009-04-29
47001 udp Reserved
47002-47099 Unassigned
jvl-mactalk 47100 udp Configuration of motors connected to Industrial Ethernet [JVL_Industri_Elektronik] [Kim_Berthelsen] 2012-12-21
47100 tcp Reserved
47101-47556 Unassigned
dbbrowse 47557 tcp Databeam Corporation [Cindy_Martin] [Cindy_Martin]
dbbrowse 47557 udp Databeam Corporation [Cindy_Martin] [Cindy_Martin]
47558-47623 Unassigned
directplaysrvr 47624 tcp Direct Play Server [Ajay_Jindal] [Ajay_Jindal]
directplaysrvr 47624 udp Direct Play Server [Ajay_Jindal] [Ajay_Jindal]
47625-47805 Unassigned
ap 47806 tcp ALC Protocol [Dave_Robin] [Dave_Robin]
ap 47806 udp ALC Protocol [Dave_Robin] [Dave_Robin]
47807 Unassigned
bacnet 47808 tcp Building Automation and Control Networks [Coleman_Brumley] [Coleman_Brumley] 2011-02-10
bacnet 47808 udp Building Automation and Control Networks [Coleman_Brumley] [Coleman_Brumley] 2011-02-10
presonus-ucnet 47809 udp PreSonus Universal Control Network Protocol [PreSonus_Audio_Electronics_Inc] [Matthias_Juwan] 2013-07-12
47809 tcp Reserved
47810-47999 Unassigned
nimcontroller 48000 tcp Nimbus Controller [Carstein_Seeberg_2] [Carstein_Seeberg_2]
nimcontroller 48000 udp Nimbus Controller [Carstein_Seeberg_2] [Carstein_Seeberg_2]
nimspooler 48001 tcp Nimbus Spooler [Carstein_Seeberg_2] [Carstein_Seeberg_2]
nimspooler 48001 udp Nimbus Spooler [Carstein_Seeberg_2] [Carstein_Seeberg_2]
nimhub 48002 tcp Nimbus Hub [Carstein_Seeberg_2] [Carstein_Seeberg_2]
nimhub 48002 udp Nimbus Hub [Carstein_Seeberg_2] [Carstein_Seeberg_2]
nimgtw 48003 tcp Nimbus Gateway [Carstein_Seeberg_2] [Carstein_Seeberg_2]
nimgtw 48003 udp Nimbus Gateway [Carstein_Seeberg_2] [Carstein_Seeberg_2]
nimbusdb 48004 tcp NimbusDB Connector [Stephen_Harrison] [Stephen_Harrison] 2011-01-24
48004 udp Reserved
nimbusdbctrl 48005 tcp NimbusDB Control [Stephen_Harrison] [Stephen_Harrison] 2011-01-24
48005 udp Reserved
48006-48047 Unassigned
juka 48048 tcp Juliar Programming Language Protocol [Juliar] [Andrei_Mak] 2018-02-16 2019-03-08
48048 udp Reserved
3gpp-cbsp 48049 tcp 3GPP Cell Broadcast Service Protocol [Gert_Thomasen] [Gert_Thomasen] 2009-12-07
48049 udp Reserved
weandsf 48050 tcp WeFi Access Network Discovery and Selection Function [WeFi_Inc] [Eran_Naveh] 2013-07-19
48050 udp Reserved
48051-48127 Unassigned
isnetserv 48128 tcp Image Systems Network Services [Bengt_Gustafsson] [Bengt_Gustafsson] 2006-05
isnetserv 48128 udp Image Systems Network Services [Bengt_Gustafsson] [Bengt_Gustafsson] 2006-05

Contact Information

ID Name Organization Contact URI Last Updated
[Aaron_Ballman] Aaron Ballman mailto:aaron&realsoftware.com 2004-11
[Acronis] Acronis mailto:kr&acronis.com 2019-11-25
[Adam_Robinson] Adam Robinson Data Access, Inc. mailto:adam&dataaccessinc.com 2012-04-30
[Ajay_Jindal] Ajay Jindal mailto:ajayj&microsoft.com
[Alexander_Graef] Alexander Graef mailto:alex&graef.cc 2004-11
[Andrei_Mak] Andrei Mak mailto:andreim&juliar.org 2018-02-16
[Andrew_Andrews] Andrew Andrews mailto:Andrew.Andrews&Nuance.com 2017-04-26
[Andriy_Skop] Andriy Skop Eleks, Ltd. mailto:andriy.skop&eleks.com 2013-04-08
[ASSIA_Inc] ASSIA Inc. mailto:info&assia-inc.com 2016-08-29
[Bengt_Gustafsson] Bengt Gustafsson mailto:bengt.gustafsson&imagesystems.se 2006-05
[Brian_Batke_2] Brian Batke mailto:eip.jsig&gmail.com
[Carstein_Seeberg_2] Carstein Seeberg mailto:case&nimsoft.no
[Christoph_Hipp] Christoph Hipp SOFTPRO GmbH mailto:christoph.hipp&softpro.de 2013-08-02
[Cindy_Martin] Cindy Martin mailto:cmartin&databeam.com
[Cognex] Cognex Corporation mailto:contactus&cognex.com 2012-08-28
[Coleman_Brumley] Coleman Brumley mailto:cbrumley&polarsoft.biz 2011-02-10
[Data_Access_Inc] Data Access, Inc. mailto:development&dataaccessinc.com 2012-04-30
[Dave_Robin] Dave Robin mailto:iana_ports&daverobin.com
[Didier_Lahay] Didier Lahay mailto:dlahay&sierrawireless.com 2013-02-22
[Dirk_Kutscher] Dirk Kutscher mailto:dku&informatik.uni-bremen.de
[DOMIQ_Sp_zoo] DOMIQ Sp. z o.o. mailto:registries&domiq.pl 2011-08-29
[Eclipse_Foundation] Eclipse Foundation mailto:license&eclipse.org 2013-02-22
[Eleks_Ltd] Eleks, Ltd. mailto:eleksinfo&eleks.com 2013-04-08
[Eliot_Blennerhassett] Eliot Blennerhassett mailto:eblennerhassett&audioscience.com 2011-07-07
[Eran_Naveh] Eran Naveh WeFi, Inc. mailto:eranna&wefi.com 2013-07-19
[Filip_Zawadiak] Filip Zawadiak DOMIQ Sp. z o.o. mailto:fzawadiak&domiq.pl 2011-08-29
[Gert_Thomasen] Gert Thomasen mailto:gert.thomasen&etsi.org 2009-12-07
[Inedo] Inedo mailto:support&inedo.com 2016-01-12
[Jeremy_Gilliat] Jeremy Gilliat mailto:jeremy.gilliat&geac.com
[Juliar] Juliar mailto:admin&juliar.org 2018-02-16
[JVL_Industri_Elektronik] JVL Industri Elektronik mailto:jvl&jvl.dk 2012-12-21
[Kevin_Reed] Kevin Reed mailto:kr&acronis.com 2019-11-25
[Kim_Berthelsen] Kim Berthelsen JVL Industri Elektronik mailto:kb&jvl.dk 2012-12-21
[Leonardo_Dagum] Leonardo Dagum mailto:ldagum&assia-inc.com 2016-08-29
[Mario_Joussen] Mario Joussen Cognex Corporation mailto:mario.joussen&cognex.com 2012-08-28
[Matthias_Juwan] Matthias Juwan PreSonus Audio Electronics, Inc mailto:mjuwan&presonus.com 2013-07-12
[Matthias_Schroer] Matthias Schroer mailto:matthias.schroer&invision.de
[Michael_Yun] Michael Yun mailto:cinnanda&gmail.com 2007-10-24
[Nuance_Communications_Inc4] Nuance Communications, Inc. mailto:dev&nsius.com 2017-04-26
[Patrick_Kara] Patrick Kara mailto:Patrick&eba.net
[PreSonus_Audio_Electronics_Inc] PreSonus Audio Electronics, Inc mailto:mjuwan&presonus.com 2013-07-12
[Redspeed_International_Ltd] Redspeed International Ltd mailto:simon.griffiths&redspeed-int.com 2015-03-10
[Ryan_Mack] Ryan Mack mailto:rmack&microsoft.com 2009-04-29
[Simon_Griffiths] Simon Griffiths Redspeed International Ltd mailto:simon.griffiths&redspeed-int.com 2015-03-10
[SOFTPRO_GmbH] SOFTPRO GmbH mailto:christoph.hipp&softpro.de 2013-08-02
[Stephen_Harrison] Stephen Harrison mailto:sharrison&nimbusdb.com 2011-01-24
[Steve_Dennis] Steve Dennis mailto:sdennis&inedo.com 2016-01-12
[WeFi_Inc] WeFi, Inc. mailto:eranna&wefi.com 2013-07-19