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List of well known ports (computing)

IANA is responsible for assigning port numbers to specific uses. The Well Known Ports are those in the range 0-1023. On Unix-derived operating systems, opening a port in this range to receive incoming connections requires root privileges.

See the IANA list of port assignments for a full list.

List of network protocols, by port (not exhaustive, please extend and tidy)

(entries above 1024 should probably go on a seperate page)