IP Address Wizard

Your IP address is: 38.107.191.100

IP Addresses are used to identify computers and other devices on a TCP/IP network. Each address is 32bits long.

In order to make IP Addresses readable by humans they are shown in a standard format, four groups of numbers separated by periods (sometimes called full stops). For example 123.100.25.45 could be an IP Address. Each group can have any value from 0 to 255.

So long as each IP Address is unique and your network never connects to any other you could use any numbers. If however, as most users do, you want to connect to the Internet, things need to be more systematic to avoid conflicting addresses. Registered addresses are allocated for Internet use.

The original specification for IP Addresses (IP Version 4) allowed for 3 Classes of address, depending on how many networks, devices (called Hosts) and Users each network required.

Class A: allowed for up to 16 million hosts but only 126 networks
Class B: allowed for up to 65,000 hosts and 16,000 networks
Class C: allowed for up to 254 hosts and 2 million networks

IP Version 6

Today, with so many networks in existence and so many Internet users, IP Addresses based on this scheme are rapidly being used up. A new system of classless addressing is being adopted and a new specification of IP Address (IPv6) is beginning to appear. IPv6 uses a much longer 128bit address and consequently allows for a much larger number of addresses.