51.79.64.0-51.79.71.255 51.79.64.0/21
51.79.72.0-51.79.75.255 51.79.72.0/22
51.79.76.0-51.79.77.255 51.79.76.0/23
51.79.78.0-51.79.78.255 51.79.78.0/24