online CIDR and IP subnet calculator : Check host

198.72.100.15-198.72.100.15
198.72.100.15/32

198.72.100.16-198.72.100.31
198.72.100.16/28

198.72.100.32-198.72.100.63
198.72.100.32/27

198.72.100.64-198.72.100.127
198.72.100.64/26

198.72.100.128-198.72.100.255
198.72.100.128/25

198.72.101.0-198.72.101.255
198.72.101.0/24

198.72.102.0-198.72.103.255
198.72.102.0/23

198.72.104.0-198.72.111.255
198.72.104.0/21

198.72.112.0-198.72.127.255
198.72.112.0/20

IP subnet calculator 198.72.100.15-198.72.127.255