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
xnm-ssl 3220 tcp XML NM over SSL
xnm-ssl 3220 udp XML NM over SSL
xnm-clear-text 3221 tcp XML NM over TCP [Mark_Trostler] [Mark_Trostler]
xnm-clear-text 3221 udp XML NM over TCP [Mark_Trostler] [Mark_Trostler]
glbp 3222 tcp Gateway Load Balancing Pr [Douglas_McLaggan] [Douglas_McLaggan]
glbp 3222 udp Gateway Load Balancing Pr [Douglas_McLaggan] [Douglas_McLaggan]
digivote 3223 tcp DIGIVOTE (R) Vote-Server [Christian_Treczoks] [Christian_Treczoks]
digivote 3223 udp DIGIVOTE (R) Vote-Server [Christian_Treczoks] [Christian_Treczoks]
aes-discovery 3224 tcp AES Discovery Port [Ken_Richard] [Ken_Richard]
aes-discovery 3224 udp AES Discovery Port [Ken_Richard] [Ken_Richard]
fcip-port 3225 tcp FCIP [RFC3821]
fcip-port 3225 udp FCIP [RFC3821]
isi-irp 3226 tcp ISI Industry Software IRP [Peter_Sandstrom] [Peter_Sandstrom]
isi-irp 3226 udp ISI Industry Software IRP [Peter_Sandstrom] [Peter_Sandstrom]
dwnmshttp 3227 tcp DiamondWave NMS Server
dwnmshttp 3227 udp DiamondWave NMS Server
dwmsgserver 3228 tcp DiamondWave MSG Server [Varma_Bhupatiraju] [Varma_Bhupatiraju]
dwmsgserver 3228 udp DiamondWave MSG Server [Varma_Bhupatiraju] [Varma_Bhupatiraju]
global-cd-port 3229 tcp Global CD Port [Vitaly_Revsin_2] [Vitaly_Revsin_2]
global-cd-port 3229 udp Global CD Port [Vitaly_Revsin_2] [Vitaly_Revsin_2]
active-net 3322-3325 Active Networks [Bob_Braden_2] [Bob_Braden_2]
rusb-sys-port 3422 tcp Remote USB System Port [Steven_Klein] [Steven_Klein] 2002-02
rusb-sys-port 3422 udp Remote USB System Port [Steven_Klein] [Steven_Klein] 2002-02
nssocketport 3522 tcp DO over NSSocketPort [Douglas_Davidson] [Douglas_Davidson] 2002-06
nssocketport 3522 udp DO over NSSocketPort [Douglas_Davidson] [Douglas_Davidson] 2002-06
ff-lr-port 3622 tcp FF LAN Redundancy Port [Fieldbus_Foundation] [Fieldbus_Foundation] 2002-10
ff-lr-port 3622 udp FF LAN Redundancy Port [Fieldbus_Foundation] [Fieldbus_Foundation] 2002-10
xserveraid 3722 tcp Xserve RAID [Bob_Bradley] [Bob_Bradley] 2003-03
xserveraid 3722 udp Xserve RAID [Bob_Bradley] [Bob_Bradley] 2003-03
acp-discovery 3822 tcp Compute Pool Discovery
acp-discovery 3822 udp Compute Pool Discovery
sor-update 3922 tcp Soronti Update Port [Carleton_Watkins] [Carleton_Watkins] 2003-11
sor-update 3922 udp Soronti Update Port [Carleton_Watkins] [Carleton_Watkins] 2003-11
xk22 3974 tcp Remote Applicant Tracking Service [Marc_Castelluccio] [Marc_Castelluccio] 2005-08 2022-09-09
xk22 3974 udp Remote Applicant Tracking Service [Marc_Castelluccio] [Marc_Castelluccio] 2005-08 2022-09-09
dnox 4022 tcp DNOX [Leo_Rathnayake] [Leo_Rathnayake]
dnox 4022 udp DNOX [Leo_Rathnayake] [Leo_Rathnayake]
fprams 4122 tcp Fiber Patrol Alarm Service [Zhizhong_Zhuang] [Zhizhong_Zhuang] 2006-12
fprams 4122 udp Fiber Patrol Alarm Service [Zhizhong_Zhuang] [Zhizhong_Zhuang] 2006-12
trim-event 4322 tcp TRIM Event Service
trim-event 4322 udp TRIM Event Service
tsepisp 4422 tcp TSEP Installation Service Protocol [Technical_Software_Engineering_Plazotta] [Peter_Plazotta] 2016-06-22
4422 udp Reserved
dtn-bundle 4556 udp DTN Bundle UDP CL Protocol 2006-11 2014-02-21 [RFC7122]
dtn-bundle 4556 dccp DTN Bundle DCCP CL Protocol 2013-11-12 2014-02-21 [RFC7122] 1685351985
4622-4645 Unassigned
mice 5022 tcp mice server [Alan_Clifford] [Alan_Clifford]
mice 5022 udp mice server [Alan_Clifford] [Alan_Clifford]
5030 tcp Reserved 2006-12 2022-01-10 Historic usage was surfpass. De-Assigned on 2022-01-10
5030 udp Reserved 2006-12 2022-01-10 Historic usage was surfpass. De-Assigned on 2022-01-10
5216-5220 Unassigned
3exmp 5221 tcp 3eTI Extensible Management Protocol for OAMP [Bill_Rettig] [Bill_Rettig] 2010-05-19
5221 udp Reserved
xmpp-client 5222 tcp XMPP Client Connection [RFC6120]
5222 udp Reserved
hpvirtgrp 5223 tcp HP Virtual Machine Group Management [John_Williams] [John_Williams] 2007-06
hpvirtgrp 5223 udp HP Virtual Machine Group Management [John_Williams] [John_Williams] 2007-06
hpvirtctrl 5224 tcp HP Virtual Machine Console Operations [John_Williams] [John_Williams] 2007-06
hpvirtctrl 5224 udp HP Virtual Machine Console Operations [John_Williams] [John_Williams] 2007-06
hp-server 5225 tcp HP Server [Brett_Green_2] [Brett_Green_2]
hp-server 5225 udp HP Server [Brett_Green_2] [Brett_Green_2]
hp-status 5226 tcp HP Status [Brett_Green_2] [Brett_Green_2]
hp-status 5226 udp HP Status [Brett_Green_2] [Brett_Green_2]
perfd 5227 tcp HP System Performance Metric Service [Chris_Bertin] [Chris_Bertin] 2009-05-19
perfd 5227 udp HP System Performance Metric Service [Chris_Bertin] [Chris_Bertin] 2009-05-19
hpvroom 5228 tcp HP Virtual Room Service [Scott_Levin] [Scott_Levin] 2009-03-19
5228 udp Reserved
jaxflow 5229 tcp Netflow/IPFIX/sFlow Collector and Forwarder Management [JaxMP] [Stephen_Hull] 2014-08-15
5229 udp Reserved
5322-5342 Unassigned
salient-mux 5422 tcp Salient MUX [Richard_Farnham] [Richard_Farnham]
salient-mux 5422 udp Salient MUX [Richard_Farnham] [Richard_Farnham]
msdfsr 5722 tcp Microsoft DFS Replication Service [Guhan_Suriyanarayana] [Guhan_Suriyanarayana] 2006-03
msdfsr 5722 udp Microsoft DFS Replication Service [Guhan_Suriyanarayana] [Guhan_Suriyanarayana] 2006-03
bex-webadmin 6122 tcp Backup Express Web Server [Catalogic_Software_Inc] [Chi_Shih_Chang] 2008-03-19 2015-02-04
bex-webadmin 6122 udp Backup Express Web Server [Catalogic_Software_Inc] [Chi_Shih_Chang] 2008-03-19 2015-02-04
6210-6221 Unassigned
radmind 6222 tcp Radmind Access Protocol [Patrick_M_McNeal] [Patrick_M_McNeal] 2006-03
radmind 6222 udp Radmind Access Protocol [Patrick_M_McNeal] [Patrick_M_McNeal] 2006-03
6223-6240 Unassigned
emp-server2 6322 tcp Empress Software Connectivity Server 2 [Srdjan_Holovac] [Srdjan_Holovac]
emp-server2 6322 udp Empress Software Connectivity Server 2 [Srdjan_Holovac] [Srdjan_Holovac]
6422-6431 Unassigned
mcftp 6622 tcp Multicast FTP [Bruce_Lueckenhoff_2] [Bruce_Lueckenhoff_2] 2006-02
mcftp 6622 udp Multicast FTP [Bruce_Lueckenhoff_2] [Bruce_Lueckenhoff_2] 2006-02
ctdp 7022 tcp CT Discovery Protocol [James_Kirkwood] [James_Kirkwood] 2005-06
ctdp 7022 udp CT Discovery Protocol [James_Kirkwood] [James_Kirkwood] 2005-06
7122 Unassigned
7217-7226 Unassigned
ramp 7227 tcp Registry A & M Protocol [John_Havard] [John_Havard] 2003-11
ramp 7227 udp Registry A & M Protocol [John_Havard] [John_Havard] 2003-11
citrixupp 7228 tcp Citrix Universal Printing Port [Gary_Barton] [Gary_Barton] 2011-02-24
7228 udp Reserved
citrixuppg 7229 tcp Citrix UPP Gateway [Gary_Barton] [Gary_Barton] 2011-02-24
7229 udp Reserved
7422-7425 Unassigned
oa-system 8022 tcp oa-system [Marie_France_Dubreui] [Marie_France_Dubreui]
oa-system 8022 udp oa-system [Marie_France_Dubreui] [Marie_France_Dubreui]
apollo-admin 8122 tcp Apollo Admin Port [Anthony_Carrabino] [Anthony_Carrabino] 2003-08
apollo-admin 8122 udp Apollo Admin Port [Anthony_Carrabino] [Anthony_Carrabino] 2003-08
8212-8229 Unassigned

Contact Information

ID Name Organization Contact URI Last Updated
[Alan_Clifford] Alan Clifford mailto:alan&clifford.ac
[Anthony_Carrabino] Anthony Carrabino mailto:anthonyc&vistasoftware.com 2003-08
[Bill_Rettig] Bill Rettig mailto:WRettig&efji.com 2010-05-19
[Bob_Braden_2] Bob Braden mailto:braden&isi.edu
[Bob_Bradley] Bob Bradley mailto:bradley&apple.com 2003-03
[Brett_Green_2] Brett Green mailto:Brett_Green&hp.com
[Bruce_Lueckenhoff_2] Bruce Lueckenhoff mailto:bruce&scalabledesign.com 2006-02
[Carleton_Watkins] Carleton Watkins mailto:carleton&soronti.com 2003-11
[Catalogic_Software_Inc] Catalogic Software, Inc. mailto:cchang&catalogicsoftware.com 2015-02-04
[Chi_Shih_Chang] Chi Shih Chang Catalogic Software, Inc. mailto:cchang&catalogicsoftware.com 2015-02-04
[Chris_Bertin] Chris Bertin mailto:chris.bertin&hp.com 2009-05-19
[Christian_Treczoks] Christian Treczoks mailto:ct&braehler.com
[Douglas_Davidson] Douglas Davidson mailto:drd&apple.com 2002-06
[Douglas_McLaggan] Douglas McLaggan mailto:glbp-info&cisco.com
[Fieldbus_Foundation] Fieldbus Foundation mailto:dave.glanzer&fieldbus.org 2002-10
[Gary_Barton] Gary Barton mailto:gary.barton&citrix.com 2011-02-24
[Guhan_Suriyanarayana] Guhan Suriyanarayanan mailto:guhans&microsoft.com 2006-03
[James_Kirkwood] James Kirkwood mailto:james.kirkwood&controltechniques.com 2005-06
[JaxMP] JaxMP mailto:shull&jaxmp.com 2014-08-15
[John_Havard] John Havard mailto:jh&hxe.us 2003-11
[John_Williams] John Williams mailto:John.H.Williams&hp.com 2007-06
[Ken_Richard] Ken Richard mailto:kenr&aeseducation.com
[Leo_Rathnayake] Leo Rathnayake mailto:leo&perlnet.com
[Marc_Castelluccio] Marc Castelluccio mailto:marc&xk22.com 2022-08-16
[Marie_France_Dubreui] Marie-France Dubreuil mailto:Marie-France.Dubreuil&evidian.com 2002-11
[Mark_Trostler] Mark Trostler mailto:trostler&juniper.net
[Patrick_M_McNeal] Patrick M McNeal mailto:mcneal&umich.edu 2006-03
[Peter_Plazotta] Peter Plazotta mailto:peter.plazotta&tsep.de 2016-06-22
[Peter_Sandstrom] Peter Sandstrom mailto:peter.sandstrom&tassen.fi
[Richard_Farnham] Richard Farnham mailto:rfarnham&salient.com
[Scott_Levin] Scott Levin mailto:scott.levin&hp.com 2009-03-19
[Srdjan_Holovac] Srdjan Holovac mailto:srdjan&empress.com
[Stephen_Hull] Stephen Hull JaxMP mailto:shull&jaxmp.com 2014-08-15
[Steven_Klein] Steven Klein mailto:stevek&ionetworks.com 2002-02
[Technical_Software_Engineering_Plazotta] Technical Software Engineering Plazotta mailto:peter.plazotta&tsep.de 2016-06-22
[Varma_Bhupatiraju] Varma Bhupatiraju mailto:varma&calient.net
[Vitaly_Revsin_2] Vitaly Revsin mailto:vitaly&netapp.com
[Zhizhong_Zhuang] Zhizhong Zhuang mailto:ZZhuang&optellios.com 2006-12