12.40.100.87.rev.sfr.net
An IP address is an address of a device connected to a network or the internet. It's like a phone number but for devices on a network.
IPv4 addresses consist of 32 bits, allowing for a maximum of 4.29 billion addresses. For example: 127.0.0.1
IPv6 addresses consist of 128 bits, allowing for a maximum of 340 undecillion addresses. For example: 2001:db8:85a3:8d3:1319:8a2e:370:7348
IP stands for Internet Protocol, a fundamental concept for the World Wide Web since 1989.
This tool allows you to look up your own IP address or that of another device.