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]

Available Formats

CSV

XML

HTML

Plain text
Service Name Port Number Transport Protocol Description Assignee Contact Registration Date Modification Date Reference Service Code Unauthorized Use Reported Assignment Notes
video-activmail 1398 tcp Video Active Mail [Avshalom_Houri] [Avshalom_Houri]
video-activmail 1398 udp Video Active Mail [Avshalom_Houri] [Avshalom_Houri]
cadkey-licman 1399 tcp Cadkey License Manager
cadkey-licman 1399 udp Cadkey License Manager
cadkey-tablet 1400 tcp Cadkey Tablet Daemon [Joe_McCollough] [Joe_McCollough]
cadkey-tablet 1400 udp Cadkey Tablet Daemon [Joe_McCollough] [Joe_McCollough]
goldleaf-licman 1401 tcp Goldleaf License Manager [John_Fox] [John_Fox]
goldleaf-licman 1401 udp Goldleaf License Manager [John_Fox] [John_Fox]
prm-sm-np 1402 tcp Prospero Resource Manager
prm-sm-np 1402 udp Prospero Resource Manager
prm-nm-np 1403 tcp Prospero Resource Manager [B_Clifford_Neuman] [B_Clifford_Neuman]
prm-nm-np 1403 udp Prospero Resource Manager [B_Clifford_Neuman] [B_Clifford_Neuman]
igi-lm 1404 tcp Infinite Graphics License Manager
igi-lm 1404 udp Infinite Graphics License Manager
ibm-res 1405 tcp IBM Remote Execution Starter
ibm-res 1405 udp IBM Remote Execution Starter
netlabs-lm 1406 tcp NetLabs License Manager
netlabs-lm 1406 udp NetLabs License Manager
tibet-server 1407 tcp TIBET Data Server [Technical_Pursuit_Inc] [Scott_Shattuck] 2015-06-16 This port has been retasked on 2015-06-16.
1407 udp Reserved This port has been removed on 2015-06-16.
sophia-lm 1408 tcp Sophia License Manager [Eric_Brown] [Eric_Brown]
sophia-lm 1408 udp Sophia License Manager [Eric_Brown] [Eric_Brown]
here-lm 1409 tcp Here License Manager [David_Ison] [David_Ison]
here-lm 1409 udp Here License Manager [David_Ison] [David_Ison]
hiq 1410 tcp HiQ License Manager [Rick_Pugh] [Rick_Pugh]
hiq 1410 udp HiQ License Manager [Rick_Pugh] [Rick_Pugh]
af 1411 tcp AudioFile [Jim_Gettys] [Jim_Gettys]
af 1411 udp AudioFile [Jim_Gettys] [Jim_Gettys]
innosys 1412 tcp InnoSys
innosys 1412 udp InnoSys
innosys-acl 1413 tcp Innosys-ACL [Eric_Welch] [Eric_Welch]
innosys-acl 1413 udp Innosys-ACL [Eric_Welch] [Eric_Welch]
ibm-mqseries 1414 tcp IBM MQSeries [Roger_Meli] [Roger_Meli]
ibm-mqseries 1414 udp IBM MQSeries [Roger_Meli] [Roger_Meli]
dbstar 1415 tcp DBStar [Jeffrey_Millman] [Jeffrey_Millman]
dbstar 1415 udp DBStar [Jeffrey_Millman] [Jeffrey_Millman]
novell-lu6-2 1416 tcp Novell LU6.2

IANA assigned this well-formed service name as a replacement for "novell-lu6.2".
[Peter_Liu] [Peter_Liu]
novell-lu6.2 1416 tcp Novell LU6.2 [Peter_Liu] [Peter_Liu] This entry is an alias to "novell-lu6-2". This entry is now historic, not usable for use with many common service discovery mechanisms.
novell-lu6-2 1416 udp Novell LU6.2

IANA assigned this well-formed service name as a replacement for "novell-lu6.2".
[Peter_Liu] [Peter_Liu]
novell-lu6.2 1416 udp Novell LU6.2 [Peter_Liu] [Peter_Liu] This entry is an alias to "novell-lu6-2". This entry is now historic, not usable for use with many common service discovery mechanisms.
timbuktu-srv1 1417 tcp Timbuktu Service 1 Port
timbuktu-srv1 1417 udp Timbuktu Service 1 Port
timbuktu-srv2 1418 tcp Timbuktu Service 2 Port
timbuktu-srv2 1418 udp Timbuktu Service 2 Port
timbuktu-srv3 1419 tcp Timbuktu Service 3 Port
timbuktu-srv3 1419 udp Timbuktu Service 3 Port
timbuktu-srv4 1420 tcp Timbuktu Service 4 Port [Marc_Epard] [Marc_Epard]
timbuktu-srv4 1420 udp Timbuktu Service 4 Port [Marc_Epard] [Marc_Epard]
gandalf-lm 1421 tcp Gandalf License Manager [gilmer] [gilmer]
gandalf-lm 1421 udp Gandalf License Manager [gilmer] [gilmer]
autodesk-lm 1422 tcp Autodesk License Manager [David_Ko] [David_Ko]
autodesk-lm 1422 udp Autodesk License Manager [David_Ko] [David_Ko]
essbase 1423 tcp Essbase Arbor Software
essbase 1423 udp Essbase Arbor Software
hybrid 1424 tcp Hybrid Encryption Protocol [Howard_Hart] [Howard_Hart]
hybrid 1424 udp Hybrid Encryption Protocol [Howard_Hart] [Howard_Hart]
zion-lm 1425 tcp Zion Software License Manager [David_Ferrero] [David_Ferrero]
zion-lm 1425 udp Zion Software License Manager [David_Ferrero] [David_Ferrero]
sais 1426 tcp Satellite-data Acquisition System 1 [Bill_Taylor] [Bill_Taylor]
sais 1426 udp Satellite-data Acquisition System 1 [Bill_Taylor] [Bill_Taylor]
mloadd 1427 tcp mloadd monitoring tool [Bob_Braden_2] [Bob_Braden_2]
mloadd 1427 udp mloadd monitoring tool [Bob_Braden_2] [Bob_Braden_2]
informatik-lm 1428 tcp Informatik License Manager [Harald_Schlangmann] [Harald_Schlangmann]
informatik-lm 1428 udp Informatik License Manager [Harald_Schlangmann] [Harald_Schlangmann]
nms 1429 tcp Hypercom NMS
nms 1429 udp Hypercom NMS
tpdu 1430 tcp Hypercom TPDU [Noor_Chowdhury] [Noor_Chowdhury]
tpdu 1430 udp Hypercom TPDU [Noor_Chowdhury] [Noor_Chowdhury]
rgtp 1431 tcp Reverse Gossip Transport [Ian_Jackson] [Ian_Jackson]
rgtp 1431 udp Reverse Gossip Transport [Ian_Jackson] [Ian_Jackson]
blueberry-lm 1432 tcp Blueberry Software License Manager [Steve_Beigel] [Steve_Beigel]
blueberry-lm 1432 udp Blueberry Software License Manager [Steve_Beigel] [Steve_Beigel]
ms-sql-s 1433 tcp Microsoft-SQL-Server
ms-sql-s 1433 udp Microsoft-SQL-Server
ms-sql-m 1434 tcp Microsoft-SQL-Monitor [Peter_Hussey] [Peter_Hussey]
ms-sql-m 1434 udp Microsoft-SQL-Monitor [Peter_Hussey] [Peter_Hussey]
ibm-cics 1435 tcp IBM CICS [Geoff_Meacock] [Geoff_Meacock]
ibm-cics 1435 udp IBM CICS [Geoff_Meacock] [Geoff_Meacock]
saism 1436 tcp Satellite-data Acquisition System 2 [Bill_Taylor] [Bill_Taylor]
saism 1436 udp Satellite-data Acquisition System 2 [Bill_Taylor] [Bill_Taylor]
tabula 1437 tcp Tabula [Marcelo_Einhorn] [Marcelo_Einhorn]
tabula 1437 udp Tabula [Marcelo_Einhorn] [Marcelo_Einhorn]
eicon-server 1438 tcp Eicon Security Agent/Server
eicon-server 1438 udp Eicon Security Agent/Server
eicon-x25 1439 tcp Eicon X25/SNA Gateway
eicon-x25 1439 udp Eicon X25/SNA Gateway
eicon-slp 1440 tcp Eicon Service Location Protocol [Pat_Calhoun] [Pat_Calhoun]
eicon-slp 1440 udp Eicon Service Location Protocol [Pat_Calhoun] [Pat_Calhoun]
cadis-1 1441 tcp Cadis License Management
cadis-1 1441 udp Cadis License Management
cadis-2 1442 tcp Cadis License Management [Todd_Wichers] [Todd_Wichers]
cadis-2 1442 udp Cadis License Management [Todd_Wichers] [Todd_Wichers]
ies-lm 1443 tcp Integrated Engineering Software [David_Tong] [David_Tong]
ies-lm 1443 udp Integrated Engineering Software [David_Tong] [David_Tong]
marcam-lm 1444 tcp Marcam License Management [Therese_Hunt] [Therese_Hunt]
marcam-lm 1444 udp Marcam License Management [Therese_Hunt] [Therese_Hunt]
proxima-lm 1445 tcp Proxima License Manager
proxima-lm 1445 udp Proxima License Manager
ora-lm 1446 tcp Optical Research Associates License Manager
ora-lm 1446 udp Optical Research Associates License Manager
apri-lm 1447 tcp Applied Parallel Research LM [Jim_Dillon] [Jim_Dillon]

Contact Information

ID Name Organization Contact URI Last Updated
[Avshalom_Houri] Avshalom Houri mailto:Avshalom&ubique.com
[B_Clifford_Neuman] B. Clifford Neuman mailto:bcn&isi.edu 2022-02-18
[Bill_Taylor] Bill Taylor mailto:sais&ssec.wisc.edu
[Bob_Braden_2] Bob Braden mailto:braden&isi.edu
[David_Ferrero] David Ferrero mailto:david&zion.com
[David_Ison] David Ison mailto:here&dialup.oar.net
[David_Ko] David Ko mailto:dko&autodesk.com
[David_Tong] David Tong mailto:David_Tong&integrated.mb.ca
[Eric_Brown] Eric Brown mailto:sst!emerald!eric&uunet.uu.net
[Eric_Welch] Eric Welch
[Geoff_Meacock] Geoff Meacock mailto:gbibmswl&ibmmail.com
[Harald_Schlangmann] Harald Schlangmann mailto:schlangm&informatik.uni-muenchen.de
[Howard_Hart] Howard Hart mailto:hch&hybrid.com
[Ian_Jackson] Ian Jackson mailto:iwj&cam-orl.co.uk
[Jeffrey_Millman] Jeffrey Millman mailto:jcm&dbstar.com
[Jim_Dillon] Jim Dillon mailto:jed&apri.com
[Jim_Gettys] Jim Gettys mailto:jg&crl.dec.com
[Joe_McCollough] Joe McCollough mailto:joe&cadkey.com
[John_Fox] John Fox
[Marc_Epard] Marc Epard mailto:marc&netopia.com
[Marcelo_Einhorn] Marcelo Einhorn mailto:KGUNE%25HUJIVM1.bitnet@taunivm.tau.ac.il
[Noor_Chowdhury] Noor Chowdhury mailto:noor&hypercom.com
[Pat_Calhoun] Pat Calhoun mailto:CALHOUN&admin.eicon.qc.ca
[Peter_Hussey] Peter Hussey mailto:peterhus&microsoft.com
[Peter_Liu] Peter Liu
[Rick_Pugh] Rick Pugh mailto:rick&bilmillennium.com
[Roger_Meli] Roger Meli mailto:rmmeli%25winvmd@vnet.ibm.com
[Scott_Shattuck] Scott Shattuck Technical Pursuit Inc. mailto:ss&technicalpursuit.com 2015-06-16
[Steve_Beigel] Steve Beigel mailto:ublueb!steve&uunet.uu.net
[Technical_Pursuit_Inc] Technical Pursuit Inc. mailto:ss&technicalpursuit.com 2015-06-16
[Therese_Hunt] Therese Hunt mailto:hunt&marcam.com
[Todd_Wichers] Todd Wichers mailto:twichers&csn.org
[gilmer] mailto:gilmer&gandalf.ca