50.16.56.0-50.16.63.255 50.16.56.0/21
50.16.64.0-50.16.79.255 50.16.64.0/20
50.16.80.0-50.16.83.255 50.16.80.0/22
50.16.84.0-50.16.85.255 50.16.84.0/23