Network
Port Reference
Search important TCP and UDP ports by number, service, purpose, category or protocol. The reference helps with firewall rules, server services and quick network diagnostics.
Search and filter ports
The data is filtered locally in the browser. No server request is made.
Result
The table appears after loading.
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matches
Note: Ports may be used differently in real environments. For authoritative assignments, the official IANA registry is the primary reference.
Details
Select a port from the table to display purpose, example and warning notes.