ShareYourGroupShareYourGroupSubnet and Ports

Port numbers

Search the IANA service name and port number registry by number or by name.

Type a port number (443) or a name (ssh, mysql, mail).

Guides by topic

Single ports

About the data

The search covers 6264 entries (a port with several registered services has several entries) from the IANA registry fetched on 14 November 2026. The list loads when you start typing. Many numbers have no registration at all, and some registered names belong to programs nobody uses any more: a registration shows what a number was reserved for, not what is running on your network. For the meaning of the ranges (system, user, dynamic) read what is a port number.

This is an independent guide. It is not connected with IANA, the IETF or any network equipment maker. Address and port data come from the IANA registries as fetched on 14 November 2026; RFC texts were read from rfc-editor.org. Check the originals for anything you rely on.