217.160.40.0-217.160.47.255 217.160.40.0/21
217.160.48.0-217.160.63.255 217.160.48.0/20
217.160.64.0-217.160.79.255 217.160.64.0/20
217.160.80.0-217.160.83.255 217.160.80.0/22