An address that uniquely identifies each host on a network or Internet. An IP address has a length of 32 bits, and is divided into four 8-bit parts, each separated by a period, as in 149.122.3.30. This kind of notation is called dotted decimal notation. Each part can consist of a number between 1 and 255. In addition to an IP address, you can use a symbolic (domain) name provided by Domain Name Services (DNS) to designate an Internet address.