Port Number & Service Reference

Look up IANA registered and common well-known TCP/UDP ports by number, service name, protocol, or description — HTTP, HTTPS, SSH, FTP, DNS, SMTP, MQTT, RDP, PostgreSQL, Redis, and ~120 more. Filter by protocol and range. Static reference, runs locally in your browser.

Search port, service, or description

Data is a curated static list of the most commonly encountered IANA ports — not exhaustive. Port assignments can change; check iana.org/assignments for the canonical registry. Runs locally.