online CIDR and IP subnet calculator : Check host

18.239.12.0-18.239.15.255
18.239.12.0/22

18.239.16.0-18.239.31.255
18.239.16.0/20

18.239.32.0-18.239.63.255
18.239.32.0/19

18.239.64.0-18.239.95.255
18.239.64.0/19

18.239.96.0-18.239.111.255
18.239.96.0/20

18.239.112.0-18.239.119.255
18.239.112.0/21

18.239.120.0-18.239.121.255
18.239.120.0/23

18.239.122.0-18.239.122.255
18.239.122.0/24

IP subnet calculator 18.239.12.0-18.239.122.255