online CIDR and IP subnet calculator : Check host

104.253.9.0-104.253.9.255
104.253.9.0/24

104.253.10.0-104.253.11.255
104.253.10.0/23

104.253.12.0-104.253.15.255
104.253.12.0/22

104.253.16.0-104.253.23.255
104.253.16.0/21

104.253.24.0-104.253.27.255
104.253.24.0/22

104.253.28.0-104.253.29.255
104.253.28.0/23

104.253.30.0-104.253.30.255
104.253.30.0/24

IP subnet calculator 104.253.9.0-104.253.30.255