Port Number Lookup

Look up a port number to see what service it's registered to, or search by service name to find its port. Enter a bare port number (checks both TCP and UDP), port/proto for one specific protocol, or a service name.

Data from the IANA Service Name and Transport Protocol Port Number Registry, refreshed monthly.

Provided as-is, with no warranty of any kind. Results depend on third-party public APIs and registries, which can be incomplete, delayed, or temporarily unavailable — always verify anything important independently. See the full disclaimer.