Class C IP Checker Tool is a Free SEO Tool allows to check whether the same Class C IP range is hosting two or more domains, which will help you discover duplicate IP addresses and Class C blocks. Simply enter a minimum of two, and up to 5 domain names (one domain per line) in the large text box and begin your test and see the result.
They designed to be used in small-sized companies.
Class C IP addresses range from 192.0.0.x to 223.255.255.x. The default subnet mask for Class C is 255.255.255.x. This class is for smaller networks and has 24 bits for network and 8 bits for hosts.
Simplicity, carried to the extreme, becomes elegance.Jon Franklin