Number of Hosts Supported
Class B addresses are assigned with the first two octets set.
Class C addresses are assigned with the first three octets set. This means that there is a difference between the number of hosts that you can assign based on the type of address you are assigned:
- Class A: Each Class A address supports 16,777,214 hosts.
- Class B: Each Class B address supports 65,534 hosts.
- Class C: Each Class C address supports 254 hosts.
When you are assigned a Class A network, you can manipulate the last three octets for your network hosts. When you use a Class B network, only the last two octets can be configured. A Class C address only has a single octet for you to modify.