online CIDR and IP subnet calculator : Check host

223.30.252.0-223.30.252.63
223.30.252.0/26

223.30.252.64-223.30.252.65
223.30.252.64/31

223.30.0.0-223.30.127.255
223.30.0.0/17

223.30.128.0-223.30.191.255
223.30.128.0/18

223.30.192.0-223.30.223.255
223.30.192.0/19

223.30.224.0-223.30.239.255
223.30.224.0/20

223.30.240.0-223.30.247.255
223.30.240.0/21

223.30.248.0-223.30.251.255
223.30.248.0/22

IP subnet calculator 223.30.0.0-223.30.252.65