50.87.160.0-50.87.191.255 50.87.160.0/19
50.87.192.0-50.87.223.255 50.87.192.0/19
50.87.224.0-50.87.239.255 50.87.224.0/20
50.87.240.0-50.87.243.255 50.87.240.0/22
50.87.244.0-50.87.245.255 50.87.244.0/23