Port Lookup
Find the usual service and protocol for a port number with a small, curated reference table. No network scan is performed.
A QUICK WALKTHROUGH
How to use this tool
- Enter a port number, protocol, or service name.
- Search the built-in records.
- Review the common service and usage note; verify important assignments against your environment.
Curated coverage
This browser-only lookup contains a limited list of common ports and services, based on the public Port Lookup reference at https://port-lookup.utils.com/. It is not a complete IANA service-name registry and is not a live or authoritative port-state check.
Reference only
Results describe common conventions. They do not scan your device or network, identify the process currently listening, test firewall access, or confirm that a service is available.
GOOD TO KNOW
Common questions
Does this scan my network?
No. Search runs against a small static table in your browser and sends no request.
Is this the complete IANA port registry?
No. Coverage is intentionally limited to common reference records. Consult IANA or your service documentation for authoritative assignments.
Can a port have more than one protocol or service?
Yes. The same number can be used differently by TCP and UDP, and local applications can choose non-standard assignments.