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appendix_b_ipv4_subnet_cheatsheet

/31 255.255.255.254 1 Host

/30 255.255.255.252 2 Hosts

/29 255.255.255.249 6 Hosts

/28 255.255.255.240 14 Hosts

/27 255.255.255.224 30 Hosts

/26 255.255.255.192 62 Hosts

/25 255.255.255.128 126 Hosts

/24 255.255.255.0 254 Hosts

/23 255.255.254.0 512 Host

/22 255.255.252.0 1022 Hosts

/21 255.255.248.0 2046 Hosts

/20 255.255.240.0 4094 Hosts

/19 255.255.224.0 8190 Hosts

/18 255.255.192.0 16382 Hosts

/17 255.255.128.0 32766 Hosts

/16 255.255.0.0 65534 Hosts

/15 255.254.0.0 131070 Hosts

/14 255.252.0.0 262142 Hosts

/13 255.248.0.0 524286 Hosts

/12 255.240.0.0 1048674 Hosts

/11 255.224.0.0 2097150 Hosts

/10 255.192.0.0 4194302 Hosts

/9 255.128.0.0 8388606 Hosts

/8 255.0.0.0 16777214 Hosts