Common Port Reference
Look up frequently used network ports and their standard services from an offline reference.
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What is Common Port Reference?
Common Port Reference is a searchable offline list of frequently encountered TCP and UDP service ports.
How to use Common Port Reference
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Search by port number, protocol, service or purpose.
- 02
Review whether the application uses TCP, UDP or both.
- 03
Use the result as a quick reference for configuration and troubleshooting.
Common Port Reference FAQ
Does this tool scan a server's open ports?
No. It never connects to a host; it only searches a bundled reference list.
Is Common Port Reference private to use?
Yes. Address and network calculations use only the values entered in your browser and do not probe external systems.