Class B Subnet and Host IP addresses

# bits Subnet Mask CIDR # Subnets # Hosts Nets * Hosts
2 255.255.192.0 /18 2 16382 32764
3 255.255.224.0 /19 6 8190 49140
4 255.255.240.0 /20 14 4094 57316
5 255.255.248.0 /21 30 2046 61380
6 255.255.252.0 /22 62 1022 63364
7 255.255.254.0 /23 126 510 64260
8 255.255.255.0 /24 254 254 64516
9 255.255.255.128 /25 510 126 64260
10 255.255.255.192 /26 1022 62 63364
11 255.255.255.224 /27 2046 30 61380
12 255.255.255.240 /28 4094 14 57316
13 255.255.255.248 /29 8190 6 49140
14 255.255.255.252 /30 16382 2 32764