online CIDR and IP subnet calculator : Check host

222.161.20.0-222.161.23.255
222.161.20.0/22

222.161.24.0-222.161.31.255
222.161.24.0/21

222.161.32.0-222.161.63.255
222.161.32.0/19

222.161.64.0-222.161.95.255
222.161.64.0/19

222.161.96.0-222.161.103.255
222.161.96.0/21

222.161.104.0-222.161.105.255
222.161.104.0/23

222.161.106.0-222.161.106.255
222.161.106.0/24

IP subnet calculator 222.161.20.0-222.161.106.255