What is the IP Address Range for Class A
1 to 126
What is the IP Address Range for Class B
128 to 191
What is the IP Address Range for Class C
192 to 223
What is the IP Address Range for Class D
224 to 239
What is the IP Address Range for Class E
240 to 254
What is the default subnet mask for Class A
What is the default subnet mask for Class B
What is the default subnet mask for Class C
255.255.255.0
(CIDR) /24
The default CIDR that corresponds with Class A
classless interdomain routing (CIDR) /8
The default CIDR that corresponds with Class B
classless interdomain routing (CIDR) /16
The default CIDR that corresponds with Class C
classless interdomain routing (CIDR) /24