online CIDR and IP subnet calculator : Check host

18.236.230.0-18.236.231.255
18.236.230.0/23

18.236.232.0-18.236.239.255
18.236.232.0/21

18.236.240.0-18.236.255.255
18.236.240.0/20

18.237.140.0-18.237.140.31
18.237.140.0/27

18.237.0.0-18.237.127.255
18.237.0.0/17

18.237.128.0-18.237.135.255
18.237.128.0/21

18.237.136.0-18.237.139.255
18.237.136.0/22

IP subnet calculator 18.236.230.0-18.237.140.31