Number of Available IP Addresses
How many IP addresses are available?
The structure of IPv4, which is the current most widely used version of the internet protocol, allows for a total of 4,294,967,296 or 232 addresses. The IP address consists of 4 bytes (or 32 bits) represented in dot-decimal notation as four numbers separated by dots, with each number ranging from 0 to 255. A new generation of the IP, IPv6, has been developed for widespread use after 2012.