List of TCP and UDP port numbers

List of TCP and UDP port numbers

This is a list of TCP and UDP port numbers used by protocols of the Internet protocol suite. The Internet Assigned Numbers Authority is responsible for maintaining the official assignments of port numbers for specific uses. Many unofficial uses of both well-known and registered port numbers occur in practice.

About List of TCP and UDP port numbers in brief

Summary List of TCP and UDP port numbersThis is a list of TCP and UDP port numbers used by protocols of the Internet protocol suite for operation of network applications. The Internet Assigned Numbers Authority is responsible for maintaining the official assignments of port numbers for specific uses.

Many unofficial uses of both well-known and registered port numbers occur in practice. This article lists port numbers and their associated protocols that have experienced significant uptake.