Address Classes!
The Internet people group initially characterized five deliver classes to oblige systems of fluctuating sizes. Microsoft TCP/IP bolsters class A, B, and C delivers allowed to has. The class of address characterizes which bits are utilized for the system ID and which bits are utilized for the host ID. It additionally characterizes the conceivable number of systems and the quantity of hosts per arrange.
Thus, Class C is the only class that provides 254 hosts for the network ID.
Cheers!