Class A
Range: 1 - 126
Class B
Range: 128 - 191
Class C
Range: 192 - 223
Class D
Range: 224 - 239
Class A Private
10.0.0.0 - 10.255.255.255
Class B Private
172.16.0.0 - 172.31.255.255
Class C Private
192.168.0.0 - 192.168.255.255
APIPA
Dynamically assigned by OS when DHCP server is unavailable. In the Range of 169.254.x.x
Loopback
127.0.0.1 - 127.255.255.255