IP Address Lookup & Analyzer - Validate IPv4 / IPv6 Online

Private IP addresses are reserved for use within local networks and are not routable on the public internet. Common private ranges include 10.0.0.0/8, 172.16.0.0/12, and 192.168.0.0/16. Loopback (127.x.x.x) and link-local (169.254.x.x) addresses are also flagged as private/reserved.

IPv4 addresses were historically divided into classes based on the first octet. Class A (1–126) supports large networks, Class B (128–191) medium networks, Class C (192–223) small networks, Class D (224–239) is for multicast, and Class E (240–255) is reserved for experimental use.

No. All analysis is performed entirely in your browser using JavaScript. Nothing is transmitted to any external server.