List of TCP and UDP Port Numbers

List Of TCP And UDP Port Numbers

This is a list of Internet socket port numbers used by protocols of the Transport Layer of the Internet Protocol Suite for the establishment of host-to-host communications.

Originally, these ports number were used by the Transmission Control Protocol (TCP) and the User Datagram Protocol (UDP), but are also used for the Stream Control Transmission Protocol (SCTP), and the Datagram Congestion Control Protocol (DCCP). SCTP and DCCP services usually use a port number that matches the service of the corresponding TCP or UDP implementation if they exist. The Internet Assigned Numbers Authority (IANA) is responsible for maintaining the official assignments of port numbers for specific uses. However, many unofficial uses of both well-known and registered port numbers occur in practice.

Read more about List Of TCP And UDP Port Numbers:  Table Legend, Well-known Ports, Registered Ports, Dynamic, Private or Ephemeral Ports

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