[col type=”1_2″] Prefix size Network mask Available subnets Usable hosts per subnet Total usable hosts /24 255.255.255.0 1 254 254 /25 255.255.255.128 2 126 252 /26 255.255.255.192 4 62 248 /27 255.255.255.224 8 30 240 /28 255.255.255.240 16 14 224 /29 255.255.255.248 32 6 192 /30 255.255.255.252 64 2 128 /31 255.255.255.254 128 2 * 256 […]