Network Classes
Class A/B/C overview with default masks, ranges, and typical usage.
A
Class A
255.0.0.0 (/8)Large networks (16.7M hosts per network)
Typical Usage: Large corporations, ISPs
B
Class B
255.255.0.0 (/16)Medium networks (65K hosts per network)
Typical Usage: Universities, large organizations
C
Class C
255.255.255.0 (/24)Small networks (254 hosts per network)
Typical Usage: Small businesses, home networks