IP Address Information Tool
Analyse any IPv4 or IPv6 address: its type, binary and integer forms and, for CIDR ranges, the network, broadcast, masks and usable hosts.
What is the IP Address Information Tool?
An IP address identifies a device on a network. CIDR notation like 192.168.1.0/24 describes a subnet — a block of addresses that share the same network prefix.
How does it work?
Addresses are parsed and classified in your browser (private, public, loopback, multicast…). Subnet values are calculated with bit masks. Nothing is sent to a server.
Formula
Usable hosts = 2^(32 − prefix) − 2
Example
192.168.1.10/24: network 192.168.1.0, broadcast 192.168.1.255, 254 usable hosts.
Frequently asked questions
Is my data sent to a server?
No. This tool runs entirely in your browser; nothing you paste is uploaded or stored.
How do I find my own public IP?
Your router’s status page shows it. Note that your device usually has a private address (like 192.168.x.x) behind the router; websites see the router’s public address.
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