Service Name and Transport Protocol Port Number Registry
- Last Updated
- 2024-04-19
- 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
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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 |
---|---|---|---|---|---|---|---|---|---|---|---|
nnsp | 433 | tcp | NNTP for transit servers (NNSP) | [IESG] | [IETF_Chair] | 2018-07-06 | [RFC3977] | ||||
nnsp | 433 | udp | NNTP for transit servers (NNSP) | [IESG] | [IETF_Chair] | 2018-07-06 | [RFC3977] | ||||
ms-sql-s | 1433 | tcp | Microsoft-SQL-Server | ||||||||
ms-sql-s | 1433 | udp | Microsoft-SQL-Server | ||||||||
codasrv-se | 2433 | tcp | codasrv-se | [Robert_Watson] | [Robert_Watson] | ||||||
codasrv-se | 2433 | udp | codasrv-se | [Robert_Watson] | [Robert_Watson] | ||||||
opnet-smp | 3433 | tcp | OPNET Service Management Platform | [OPNET_Technologies_Inc] | [Edward_Macomber] | 2002-03 | 2011-09-21 | ||||
opnet-smp | 3433 | udp | OPNET Service Management Platform | [OPNET_Technologies_Inc] | [Edward_Macomber] | 2002-03 | 2011-09-21 | ||||
dey-sapi | 4330 | tcp | DEY Storage Administration REST API | [DEY_Storage_Systems_Inc] | [Garrett_D_Amore] | 2013-03-01 | |||||
4330 | udp | Reserved | |||||||||
ktickets-rest | 4331 | tcp | ktickets REST API for event management and ticketing systems (embedded POS devices) | [KeyTicket_Solutions] | [MANG_Ioan-Alexandru] | 2014-04-04 | |||||
4331 | udp | Reserved | |||||||||
getty-focus | 4332 | tcp | Getty Images FOCUS service | [Matthew_Margolis] | [Bryan_Ramirez] | 2019-04-18 | |||||
4332 | udp | Reserved | |||||||||
ahsp | 4333 | tcp | ArrowHead Service Protocol (AHSP) | [QuantuMatriX_Technologies] | [Matthew_Schultz] | 2014-04-10 | |||||
ahsp | 4333 | udp | ArrowHead Service Protocol (AHSP) | [QuantuMatriX_Technologies] | [Matthew_Schultz] | 2014-04-10 | |||||
ahsp | 4333 | sctp | ArrowHead Service Protocol (AHSP) | [QuantuMatriX_Technologies] | [Matthew_Schultz] | 2014-04-10 | |||||
netconf-ch-ssh | 4334 | tcp | NETCONF Call Home (SSH) | [IESG] | [IETF_Chair] | 2016-01-12 | [RFC8071] | ||||
4334 | udp | Reserved | |||||||||
netconf-ch-tls | 4335 | tcp | NETCONF Call Home (TLS) | [IESG] | [IETF_Chair] | 2016-01-12 | [RFC8071] | ||||
4335 | udp | Reserved | |||||||||
restconf-ch-tls | 4336 | tcp | RESTCONF Call Home (TLS) | [IESG] | [IETF_Chair] | 2016-01-12 | [RFC8071] | ||||
4336 | udp | Reserved | |||||||||
4337-4339 | Unassigned | ||||||||||
vop | 4433 | tcp | Versile Object Protocol | [Versile_AS] | [Tore_Skaug] | 2012-02-01 | |||||
4433 | udp | Reserved | |||||||||
pyrrho | 5433 | tcp | Pyrrho DBMS | [Malcolm_Crowe] | [Malcolm_Crowe] | 2005-11 | |||||
pyrrho | 5433 | udp | Pyrrho DBMS | [Malcolm_Crowe] | [Malcolm_Crowe] | 2005-11 | |||||
6433-6439 | Unassigned | ||||||||||
8433 | tcp | Reserved | |||||||||
aws-as2 | 8433 | udp | Non Persistent Desktop and Application Streaming | [Amazon.com_Services_LLC] | [Ivan_O_Mahony] | 2022-11-07 | |||||
33335-33433 | Unassigned |