This document categorizes IP addresses into classes. Class A IP addresses range from 1.0.0.0 to 127.255.255.255 and include addresses for Hotmail, Facebook, and Bimbo. Class B IP addresses are between 128.0.0.0 and 191.255.255.255 and include Twitter, Walmart, and Pepsi. Class C IP addresses go from 192.0.0.0 to 223.255.255.255 and include addresses for Alpura, Net, Coca-Cola, and Pepsi.