online CIDR and IP subnet calculator : Check host

23.21.5.0-23.21.5.255
23.21.5.0/24

23.21.6.0-23.21.7.255
23.21.6.0/23

23.21.8.0-23.21.15.255
23.21.8.0/21

23.21.16.0-23.21.31.255
23.21.16.0/20

23.21.32.0-23.21.63.255
23.21.32.0/19

23.21.64.0-23.21.127.255
23.21.64.0/18

23.21.128.0-23.21.255.255
23.21.128.0/17

23.22.0.0-23.22.1.255
23.22.0.0/23

IP subnet calculator 23.21.5.0-23.22.1.255