40.68.0.0-40.68.127.255
40.68.0.0/17
40.68.128.0-40.68.191.255
40.68.128.0/18
40.68.192.0-40.68.223.255
40.68.192.0/19
40.68.224.0-40.68.239.255
40.68.224.0/20
40.68.240.0-40.68.247.255
40.68.240.0/21
40.68.248.0-40.68.251.255
40.68.248.0/22
40.68.252.0-40.68.253.255
40.68.252.0/23