IP Address Tool
Lookup your IP, validate addresses, convert formats, and calculate subnets
Your IP Address
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About IP Addresses
IPv4: 32-bit addresses written as four decimal numbers (0-255) separated by dots.
IPv6: 128-bit addresses written as eight groups of four hexadecimal digits.
CIDR: Classless Inter-Domain Routing notation specifies the network prefix length (e.g., /24 = 256 addresses).
Privacy: Your IP lookup uses external APIs. All other calculations happen locally in your browser.