Network & IP
Private vs Public IP Checker
Paste IPv4 or IPv6 addresses and see whether they’re private (RFC1918 / unique local), public, loopback, or link-local.
All processing happens in your browser. No data is sent to any server.
Input
One IP per line works best. You can mix IPv4 and IPv6 addresses.
Private ranges include IPv4 10/8, 172.16/12, 192.168/16,
and IPv6 fc00::/7. Loopback and link-local ranges are also identified.
Results
Each input line is classified and echoed back so you can paste the output into notes or tickets.