Enter a port number or service name. Instant protocol, service, and range class.
Ports 0-1023 are well-known (IANA assigned), 1024-49151 registered, 49152-65535 dynamic/private. Results come from a built-in common-ports dataset.
443 → HTTPS, TCP, encrypted web — Well-known (0-1023, IANA assigned)Not every port is listed. You'll see an honest notice plus the range class anyway.
Yes. Type e.g. http, ssh, or redis to match service names and descriptions.
No. All lookups run in your browser.