Network diagnostics / local classification
IP range inspector
Classify an IPv4 or IPv6 address as public or private/reserved using PHP’s local address filters. The check makes no external lookup and does not identify VPN, Tor, or proxy use.
This is an address-range classification, not an IP reputation or anonymizer check. Public-range classification does not establish who controls an address.
LOCAL CLASSIFICATION · NO API KEY · NO THIRD-PARTY IP LOOKUP