online CIDR and IP subnet calculator : Check host

18.180.90.0-18.180.91.255
18.180.90.0/23

18.180.92.0-18.180.95.255
18.180.92.0/22

18.180.96.0-18.180.127.255
18.180.96.0/19

18.180.128.0-18.180.143.255
18.180.128.0/20

18.180.144.0-18.180.151.255
18.180.144.0/21

18.180.152.0-18.180.155.255
18.180.152.0/22

18.180.156.0-18.180.157.255
18.180.156.0/23

18.180.158.0-18.180.158.255
18.180.158.0/24

IP subnet calculator 18.180.90.0-18.180.158.255