52.222.231.0-52.222.231.255 52.222.231.0/24
52.222.232.0-52.222.239.255 52.222.232.0/21
52.222.240.0-52.222.255.255 52.222.240.0/20
52.223.0.0-52.223.127.255 52.223.0.0/17