Common Network Ports Reference

Summary

Browse and search all common TCP/UDP ports by number, service name, or category — well-known (0–1023) through registered ports up to 49151.

How it works

1. Use the search box to filter ports by number, service name, or keyword.
2. Click a category badge (Web, Email, Database, etc.) to show only those ports.
3. Toggle the protocol button between All, TCP, and UDP to narrow results.
4. Each row shows port number, protocol, service name, description, and IANA status.
5. Click the copy icon on any row to copy that port number to your clipboard.
6. Click "Reset" to clear all filters and return to the full table.

Use cases

• Quickly reference which ports to open in a firewall rule.
• Study for networking certifications (CompTIA Network+, CCNA, etc.).
• Identify services running on a machine after a port scan.
• Plan firewall rules and ACLs by checking standard port assignments.
• Verify the default port for a database or messaging service before configuration.
• Compare TCP vs UDP usage for dual-stack services like DNS.
• Prepare secure server setups by confirming which ports should be closed.
• Onboard new developers with a quick overview of common application ports.

Frequently Asked Questions