IPv4 Subnet Mask Cheat Sheet
Addresses Hosts Netmask Amount of a Class C / 30 4 2 255.255.255.252 1 / 64 / 29 8 6 255.255.255.248 1 / 32 / 28 16 14 255.255.255.240 1 / 16 / 27 32 30 255.255.255.224 1 / 8 / 26 64 62 255.255.255.192 1 / 4 / 25 128 126 255.255.255.128 1 … Read more