online CIDR and IP subnet calculator : Check host

172.64.77.0-172.64.77.255
172.64.77.0/24

172.64.78.0-172.64.79.255
172.64.78.0/23

172.64.80.0-172.64.95.255
172.64.80.0/20

172.64.96.0-172.64.127.255
172.64.96.0/19

172.64.128.0-172.64.191.255
172.64.128.0/18

172.64.192.0-172.64.223.255
172.64.192.0/19

172.64.224.0-172.64.231.255
172.64.224.0/21

172.64.232.0-172.64.235.255
172.64.232.0/22

IP subnet calculator 172.64.77.0-172.64.235.255