Network Utilities
Common Port Number Lookup
Search common network ports by number or service name.
📖 New to this? Read What Is a Port Number? Common Ports Explained.
Example
Port 443 → HTTPS (HTTP over TLS); port 22 → SSH.
❓ Frequently Asked Questions
What is the Common Port Number Lookup used for?
Search a reference of common TCP/UDP port numbers and the services that use them.
Is the Common Port Number Lookup free and private?
Yes — it's completely free and runs entirely in your browser. Whatever you enter stays on your device and is never uploaded to any server.
Do I need to install anything to use the Common Port Number Lookup?
No. It works in any modern web browser on desktop, tablet, or phone — no downloads, no browser extensions, and no account required.