online CIDR and IP subnet calculator : Check host

8.64.60.0-8.64.63.255
8.64.60.0/22

8.64.64.0-8.64.127.255
8.64.64.0/18

8.64.128.0-8.64.255.255
8.64.128.0/17

8.65.0.0-8.65.255.255
8.65.0.0/16

8.66.0.0-8.67.255.255
8.66.0.0/15

8.68.0.0-8.71.255.255
8.68.0.0/14

8.72.0.0-8.79.255.255
8.72.0.0/13

8.80.0.0-8.95.255.255
8.80.0.0/12

8.96.0.0-8.127.255.255
8.96.0.0/11

IP subnet calculator 8.64.60.0-8.127.255.255