Ipv4 Addressing : Private Address Ranges

 Ipv4 Addressing

Address Class	Address Range	Number of Networks	Number of Hosts
A	1–126	126	16,777,214
B	128–191	16,384	65,534
C	192–223	2,097,152	254
D	224–239	NA	NA
E	240–255	NA	NA

A number of addresses have also been reserved for private use. These addresses are nonroutable and normally should not been seen on the Internet.  Tables defines the private address ranges.

Address	Class	Address Range	Default Subnet Mask
A	10.0.0.0–10.255.255.255.255	255.0.0.0
B	172.16.0.0–172.31.255.255	255.255.0.0
C	192.168.0.0–192.168.255.255	255.255.255.0