A C-Class IP is a semi static range of IP addresses that is used across the Internet. An IPv4 Address contains four different sections (classes) that are A,B,C, and D.
An example if this would be the IP address 192.168.1.2, where the number one is the C class. When you purchase a C-Class IP from Hostwinds you will get an IP from a pool of C-Class IP addresses that are available. Normally when you purchase five IPs from Hostwinds you get them in sequential order like 192.168.1.2,3,4,5,6. What’s different about a C-Class IP is that purchase one C-Class IP along with the standard IPs you would receive IPs in sequential order like this, 192.168.1.2,3,4,5 and a C-Class IP such as 188.8.131.52 that is not in the same class as your other IP Addresses.