online CIDR and IP subnet calculator : Check host

221.146.194.0-221.146.195.255
221.146.194.0/23

221.146.196.0-221.146.199.255
221.146.196.0/22

221.146.200.0-221.146.207.255
221.146.200.0/21

221.146.208.0-221.146.223.255
221.146.208.0/20

221.146.224.0-221.146.255.255
221.146.224.0/19

221.147.0.0-221.147.63.255
221.147.0.0/18

221.147.64.0-221.147.79.255
221.147.64.0/20

221.147.80.0-221.147.81.255
221.147.80.0/23

221.147.82.0-221.147.82.255
221.147.82.0/24

IP subnet calculator 221.146.194.0-221.147.82.255