50.19.166.0-50.19.167.255 50.19.166.0/23
50.19.168.0-50.19.175.255 50.19.168.0/21
50.19.176.0-50.19.179.255 50.19.176.0/22
50.19.180.0-50.19.181.255 50.19.180.0/23
50.19.182.0-50.19.182.255 50.19.182.0/24