IP addresses are usually represented in an Internet Protocol Version 4 address format, which consists of four groups of numbers separated by dots.
An IPv4 address is a 32-bit address that identifies a host on an Internet Protocol version 4 (IPv4) network. Currently, there are 3 billion (3 x 109) possible IP addresses on the Internet, and around 2 billion are currently in use. You can map an IP address to hostnames, email addresses, and many other things.
An IPv6 address is an internet protocol version 6 identifier for host computers and other devices on computer networks. It is based on the IPv4 addressing scheme using 128 bits (the same size) but has vastly more possible addresses than IPv4 did when it was initially defined.