online CIDR and IP subnet calculator : Check host

104.18.91.0-104.18.91.255
104.18.91.0/24

104.18.92.0-104.18.95.255
104.18.92.0/22

104.18.96.0-104.18.127.255
104.18.96.0/19

104.18.128.0-104.18.255.255
104.18.128.0/17

104.19.0.0-104.19.127.255
104.19.0.0/17

104.19.128.0-104.19.191.255
104.19.128.0/18

104.19.192.0-104.19.195.255
104.19.192.0/22

IP subnet calculator 104.18.91.0-104.19.195.255