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TCP UDP Ports


Official List

Port 42

Ports those registered with IANA are shown as official ports. The same port number may be unofficialy used by various services or applications. The official usage are listed separately below its usage may change from time to time.

Official

Port Protocol (TCP/UDP) Title Description Port Type
Port 42 tcp name Host Name Server WELL KNOWN PORT
Port 42 udp name Host Name Server WELL KNOWN PORT
Port 42 tcp nameserver Host Name Server WELL KNOWN PORT
Port 42 udp nameserver Host Name Server WELL KNOWN PORT

UnOfficial

Unofficialy or sometimes with conflict, the same port may be used by different applications.

Port Protocol (TCP/UDP) Description
Port 42 WINS