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
rootd 1094 tcp ROOTD [Fons_Rademakers] [Fons_Rademakers]
rootd 1094 udp ROOTD [Fons_Rademakers] [Fons_Rademakers]
nicelink 1095 tcp NICELink [Jordi_Lisbona] [Jordi_Lisbona]
nicelink 1095 udp NICELink [Jordi_Lisbona] [Jordi_Lisbona]
cnrprotocol 1096 tcp Common Name Resolution Protocol [Michael_Mealling] [Michael_Mealling]
cnrprotocol 1096 udp Common Name Resolution Protocol [Michael_Mealling] [Michael_Mealling]
sunclustermgr 1097 tcp Sun Cluster Manager [Ashit_Patel] [Ashit_Patel]
sunclustermgr 1097 udp Sun Cluster Manager [Ashit_Patel] [Ashit_Patel]
rmiactivation 1098 tcp RMI Activation
rmiactivation 1098 udp RMI Activation
rmiregistry 1099 tcp RMI Registry [Mark_Hodapp] [Mark_Hodapp]
rmiregistry 1099 udp RMI Registry [Mark_Hodapp] [Mark_Hodapp]
mctp 1100 tcp MCTP [Vitaly_Revsin] [Vitaly_Revsin]
mctp 1100 udp MCTP [Vitaly_Revsin] [Vitaly_Revsin]
pt2-discover 1101 tcp PT2-DISCOVER [Ralph_Kammerlander] [Ralph_Kammerlander]
pt2-discover 1101 udp PT2-DISCOVER [Ralph_Kammerlander] [Ralph_Kammerlander]
adobeserver-1 1102 tcp ADOBE SERVER 1
adobeserver-1 1102 udp ADOBE SERVER 1
adobeserver-2 1103 tcp ADOBE SERVER 2 [Frank_Soetebeer] [Frank_Soetebeer]
adobeserver-2 1103 udp ADOBE SERVER 2 [Frank_Soetebeer] [Frank_Soetebeer]
xrl 1104 tcp XRL [Patrick_Robinson] [Patrick_Robinson]
xrl 1104 udp XRL [Patrick_Robinson] [Patrick_Robinson]
ftranhc 1105 tcp FTRANHC [Eriko_Shimada] [Eriko_Shimada]
ftranhc 1105 udp FTRANHC [Eriko_Shimada] [Eriko_Shimada]
isoipsigport-1 1106 tcp ISOIPSIGPORT-1
isoipsigport-1 1106 udp ISOIPSIGPORT-1
isoipsigport-2 1107 tcp ISOIPSIGPORT-2 [Peter_Egli] [Peter_Egli]
isoipsigport-2 1107 udp ISOIPSIGPORT-2 [Peter_Egli] [Peter_Egli]
ratio-adp 1108 tcp ratio-adp [Oliver_Thulke] [Oliver_Thulke]
ratio-adp 1108 udp ratio-adp [Oliver_Thulke] [Oliver_Thulke]
1109 Reserved - IANA
webadmstart 1110 tcp Start web admin server
nfsd-keepalive 1110 udp Client status info [Beth_Crespo] [Beth_Crespo]
ltp-deepspace 1113 dccp Licklider Transmission Protocol 2013-11-12 2014-02-21 [RFC7122] 7107696
bnetfile 1120 tcp Battle.net File Transfer Protocol [Domain_Tech] [Domain_Tech] 2005-04
bnetfile 1120 udp Battle.net File Transfer Protocol [Domain_Tech] [Domain_Tech] 2005-04
casp 1130 tcp CAC App Service Protocol
casp 1130 udp CAC App Service Protocol
autonoc 1140 tcp AutoNOC Network Operations Protocol [Kyle_Lussier] [Kyle_Lussier] 2005-12
autonoc 1140 udp AutoNOC Network Operations Protocol [Kyle_Lussier] [Kyle_Lussier] 2005-12
blaze 1150 tcp Blaze File Server [Curt_Schimmel] [Curt_Schimmel] 2005-11
blaze 1150 udp Blaze File Server [Curt_Schimmel] [Curt_Schimmel] 2005-11
olsv 1160 tcp DB Lite Mult-User Server [Philip_Stephenson] [Philip_Stephenson] 2005-08
olsv 1160 udp DB Lite Mult-User Server [Philip_Stephenson] [Philip_Stephenson] 2005-08
atc-lm 1170 tcp AT+C License Manager [Peter_Schafer] [Peter_Schafer] 2004-02
atc-lm 1170 udp AT+C License Manager [Peter_Schafer] [Peter_Schafer] 2004-02
mc-client 1180 tcp Millicent Client Proxy [Steve_Glassman] [Steve_Glassman]
mc-client 1180 udp Millicent Client Proxy [Steve_Glassman] [Steve_Glassman]
commlinx-avl 1190 tcp CommLinx GPS / AVL System [Peter_Johnson] [Peter_Johnson] 2004-11
commlinx-avl 1190 udp CommLinx GPS / AVL System [Peter_Johnson] [Peter_Johnson] 2004-11
scol 1200 tcp SCOL [Cryo_Networks] [Cryo_Networks]
scol 1200 udp SCOL [Cryo_Networks] [Cryo_Networks]
nucleus-sand 1201 tcp Nucleus Sand Database Server [James_Marsh] [James_Marsh]
nucleus-sand 1201 udp Nucleus Sand Database Server [James_Marsh] [James_Marsh]
caiccipc 1202 tcp caiccipc [Vince_Re] [Vince_Re]
caiccipc 1202 udp caiccipc [Vince_Re] [Vince_Re]
ssslic-mgr 1203 tcp License Validation
ssslic-mgr 1203 udp License Validation
ssslog-mgr 1204 tcp Log Request Listener [Eric_Bruno] [Eric_Bruno]
ssslog-mgr 1204 udp Log Request Listener [Eric_Bruno] [Eric_Bruno]
accord-mgc 1205 tcp Accord-MGC [Roni_Even] [Roni_Even]
accord-mgc 1205 udp Accord-MGC [Roni_Even] [Roni_Even]
anthony-data 1206 tcp Anthony Data [Paul_Dollemore] [Paul_Dollemore]
anthony-data 1206 udp Anthony Data [Paul_Dollemore] [Paul_Dollemore]
metasage 1207 tcp MetaSage [Peter_Anvelt] [Peter_Anvelt]
metasage 1207 udp MetaSage [Peter_Anvelt] [Peter_Anvelt]
seagull-ais 1208 tcp SEAGULL AIS [Lee_Breisacher] [Lee_Breisacher]
seagull-ais 1208 udp SEAGULL AIS [Lee_Breisacher] [Lee_Breisacher]
ipcd3 1209 tcp IPCD3 [Mark_Ciskey] [Mark_Ciskey]
ipcd3 1209 udp IPCD3 [Mark_Ciskey] [Mark_Ciskey]
eoss 1210 tcp EOSS [Robert_Armes] [Robert_Armes]
eoss 1210 udp EOSS [Robert_Armes] [Robert_Armes]
scanstat-1 1215 tcp scanSTAT 1.0 [William_Scheding] [William_Scheding]
scanstat-1 1215 udp scanSTAT 1.0 [William_Scheding] [William_Scheding]
qt-serveradmin 1220 tcp QT SERVER ADMIN [Chris_LeCroy] [Chris_LeCroy]
qt-serveradmin 1220 udp QT SERVER ADMIN [Chris_LeCroy] [Chris_LeCroy]
periscope 1230 tcp Periscope [Kevin_Madden] [Kevin_Madden]
periscope 1230 udp Periscope [Kevin_Madden] [Kevin_Madden]
tsdos390 1237 tcp tsdos390 [Ben_Pracht] [Ben_Pracht]
tsdos390 1237 udp tsdos390 [Ben_Pracht] [Ben_Pracht]
instantia 1240 tcp Instantia [Ruth_Slater] [Ruth_Slater]
instantia 1240 udp Instantia [Ruth_Slater] [Ruth_Slater]
swldy-sias 1250 tcp swldy-sias [Peter_E_Williams] [Peter_E_Williams]
swldy-sias 1250 udp swldy-sias [Peter_E_Williams] [Peter_E_Williams]
ibm-ssd 1260 tcp ibm-ssd [Barry_Whyte] [Barry_Whyte]
ibm-ssd 1260 udp ibm-ssd [Barry_Whyte] [Barry_Whyte]
opsmgr 1270 tcp Microsoft Operations Manager [Ashvin_Sanghvi] [Ashvin_Sanghvi]
opsmgr 1270 udp Microsoft Operations Manager [Ashvin_Sanghvi] [Ashvin_Sanghvi]
1276 tcp Reserved 2014-05-23 This entry has been removed on 2014-05-23.
1276 udp Reserved 2014-05-23 This entry has been removed on 2014-05-23.
pictrography 1280 tcp Pictrography [Takashi_Hoshino] [Takashi_Hoshino]
pictrography 1280 udp Pictrography [Takashi_Hoshino] [Takashi_Hoshino]
winjaserver 1290 tcp WinJaServer
winjaserver 1290 udp WinJaServer
h323hostcallsc 1300 tcp H.323 Secure Call Control Signalling [ITU-T] [ITU-T_TSB] 2013-01-31
h323hostcallsc 1300 udp H.323 Secure Call Control Signalling [ITU-T] [ITU-T_TSB] 2013-01-31
1301 tcp Reserved 2019-10-30 De-Assigned on 2019-10-30
1301 udp Reserved 2019-10-30 De-Assigned on 2019-10-30
1302 tcp Reserved 2019-10-30 De-Assigned on 2019-10-30
1302 udp Reserved 2019-10-30 De-Assigned on 2019-10-30
sftsrv 1303 tcp sftsrv [Robert_Frazier] [Robert_Frazier]

Contact Information

ID Name Organization Contact URI Last Updated
[Ashit_Patel] Ashit Patel mailto:Ashit.Patel&eng.sun.com
[Ashvin_Sanghvi] Ashvin Sanghvi mailto:AshvinS&microsoft.com
[Barry_Whyte] Barry Whyte mailto:barry_whyte&uk.ibm.com
[Ben_Pracht] Ben Pracht mailto:ben.pracht&tivoli.com
[Beth_Crespo] Beth Crespo mailto:beth.crespo&hp.com
[Chris_LeCroy] Chris LeCroy mailto:lecroy&apple.com
[Cryo_Networks] Cryo-Networks mailto:p.favre&cryo-networks.fr
[Curt_Schimmel] Curt Schimmel mailto:curt&small-tree.com 2005-11
[Domain_Tech] Domain Tech mailto:Domainnametech&blizzard.com 2005-04
[Eric_Bruno] Eric Bruno mailto:ebruno&solution-soft.com
[Eriko_Shimada] Eriko Shimada mailto:eriko&kel.fujitsu.co.jp
[Fons_Rademakers] Fons Rademakers mailto:Fons.Rademakers&cern.ch
[Frank_Soetebeer] Frank Soetebeer mailto:frsoeteb&adobe.com 2003-01
[ITU-T] ITU-T mailto:tsbsg16&itu.int 2013-01-31
[ITU-T_TSB] ITU-T TSB ITU-T mailto:tsbsg16&itu.int 2013-01-31
[James_Marsh] James Marsh mailto:James_T_Marsh&hotmail.com
[Jordi_Lisbona] Jordi Lisbona mailto:jlisbona&tango04.net
[Kevin_Madden] Kevin Madden mailto:Kevin&emailxtras.com
[Kyle_Lussier] Kyle Lussier mailto:klussier&autonoc.com 2005-12
[Lee_Breisacher] Lee Breisacher mailto:lbreisacher&seagullsw.com
[Mark_Ciskey] Mark Ciskey mailto:mlciskey&plato.com
[Mark_Hodapp] Mark Hodapp mailto:mark.hodapp&sun.com
[Michael_Mealling] Michael Mealling mailto:michaelm&netsol.com
[Oliver_Thulke] Oliver Thulke mailto:oth&ratio.de
[Patrick_Robinson] Patrick Robinson mailto:probinson&plosive.com
[Paul_Dollemore] Paul Dollemore mailto:pauld&anthonydata.com
[Peter_Anvelt] Peter Anvelt mailto:panvelt&xnai.com
[Peter_E_Williams] Peter E Williams mailto:peter.williams&smallworld-us.com
[Peter_Egli] Peter Egli mailto:peter.egli&inalp.com
[Peter_Johnson] Peter Johnson mailto:peter&commlinx.com.au 2004-11
[Peter_Schafer] Peter Schäfer mailto:p.schaefer&nospam.atc-systeme.de 2004-02
[Philip_Stephenson] Philip Stephenson mailto:Philip.stephenson&oracle.com 2005-08
[Ralph_Kammerlander] Ralph Kammerlander mailto:ralph.kammerlander&khe.siemens.de
[Robert_Armes] Robert Armes mailto:rarmes&axarte.com
[Robert_Frazier] Robert Frazier mailto:BobF&mrp3.com
[Roni_Even] Roni Even mailto:roni_e&accord.co.il
[Ruth_Slater] Ruth Slater mailto:ruth.slater&ideagen.co.uk
[Steve_Glassman] Steve Glassman mailto:steveg&pa.dec.com
[Takashi_Hoshino] Takashi Hoshino mailto:hoshino&miya.fujifilm.co.jp
[Vince_Re] Vince Re mailto:Vincent.Re&cai.com
[Vitaly_Revsin] Vitaly Revsin mailto:vitaly&webmanage.com
[William_Scheding] William Scheding mailto:wls&wls.org