online CIDR and IP subnet calculator : Check host

223.72.0.0-223.72.127.255
223.72.0.0/17

223.72.128.0-223.72.191.255
223.72.128.0/18

223.72.192.0-223.72.207.255
223.72.192.0/20

223.72.208.0-223.72.211.255
223.72.208.0/22

223.72.212.0-223.72.213.255
223.72.212.0/23

223.72.214.0-223.72.214.255
223.72.214.0/24

223.69.0.0-223.69.255.255
223.69.0.0/16

223.70.0.0-223.71.255.255
223.70.0.0/15

IP subnet calculator 223.69.0.0-223.72.214.255