TCP/UDP Port Lookup

TCP/UDP Port Lookup

Look up TCP and UDP port numbers to find their associated service names, or search by service name to discover which ports they use. Powered by the official IANA Service Name and Transport Protocol Port Number Registry.

How to Use

Enter a port number (1-65535) or service name in the search field. Optionally filter by protocol (TCP, UDP, or SCTP) and port range (well-known, registered, or dynamic). Results appear instantly as you type.

Features

• Port Number Lookup – Enter any port number to find the official service name and description
• Service Name Search – Search by service keyword to find associated port numbers
• Protocol Filtering – Filter results by TCP, UDP, or SCTP protocol
• Port Range Categories – Well-known (0-1023), registered (1024-49151), and dynamic (49152-65535) ports highlighted
• IANA Database – Complete registry with thousands of port-to-service mappings
• CSV Export – Download filtered results as a CSV file