Service Name and Transport Protocol Port Number Registry

Last Updated
2021-11-24
Expert(s)
TCP/UDP: Joe Touch; Eliot Lear, Markku Kojo, Kumiko Ono, Martin Stiemerling, 
Wes Eddy, Brian Trammell, and Jana Iyengar
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 difference uses of these ranges is 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.                                                   *
************************************************************************
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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
ms-sql-s 1433 tcp Microsoft-SQL-Server
ms-sql-s 1433 udp Microsoft-SQL-Server
rsqlserver 4430 tcp REAL SQL Server [Marco_Bambini] [Marco_Bambini] 2008-08-28
rsqlserver 4430 udp REAL SQL Server [Marco_Bambini] [Marco_Bambini] 2008-08-28
hfcs 4900 tcp HFSQL Client/Server Database Engine [PC_SOFT] [Jerome_AERTS_2] 2006-03-02 2014-02-02
hfcs 4900 udp HFSQL Client/Server Database Engine [PC_SOFT] [Jerome_AERTS_2] 2006-03-02 2014-02-02
hfcs-manager 4999 tcp HFSQL Client/Server Database Engine Manager [PC_SOFT] [Jerome_AERTS_2] 2006-03-02 2014-02-02
hfcs-manager 4999 udp HFSQL Client/Server Database Engine Manager [PC_SOFT] [Jerome_AERTS_2] 2006-03-02 2014-02-02
sossd-collect 7981 tcp Spotlight on SQL Server Desktop Collect [Rob_Griffin_2] [Rob_Griffin_2] 2010-08-30
sossd-agent 7982 tcp Spotlight on SQL Server Desktop Agent [Rob_Griffin_2] [Rob_Griffin_2] 2010-09-13
sossd-disc 7982 udp Spotlight on SQL Server Desktop Agent Discovery [Rob_Griffin_2] [Rob_Griffin_2] 2010-09-13
sphinxql 9306 tcp Sphinx search server (MySQL listener) [Andrew_Aksyonoff] [Andrew_Aksyonoff] 2009-10-20
dell-soss-ds-w tcp Spotlight on SQL Server Diagnostic Server HTTP [Dell_2] [Rob_Griffin_3] 2013-10-03 Defined TXT keys: None

Contact Information

ID Name Organization Contact URI Last Updated
[Andrew_Aksyonoff] Andrew Aksyonoff mailto:shodan&sphinxsearch.com 2009-10-20
[Dell_2] Dell mailto:rob.gri55in&gmail.com 2013-10-03
[Jerome_AERTS_2] Jerome AERTS PC SOFT mailto:jae&pcsoft.fr 2014-02-02
[Marco_Bambini] Marco Bambini mailto:marco&realsoftware.com 2008-08-28
[PC_SOFT] PC SOFT mailto:jae&pcsoft.fr 2014-02-02
[Rob_Griffin_2] Rob Griffin mailto:rob.gri55in&gmail.com 2010-09-13
[Rob_Griffin_3] Rob Griffin Dell mailto:rob.gri55in&gmail.com 2013-10-03