52.25.0.0-52.25.127.255 52.25.0.0/17
52.25.128.0-52.25.143.255 52.25.128.0/20
52.25.144.0-52.25.151.255 52.25.144.0/21
52.24.0.0-52.24.255.255 52.24.0.0/16