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
50.19.176.0-50.19.183.255 50.19.176.0/21
50.19.184.0-50.19.187.255 50.19.184.0/22
50.19.188.0-50.19.188.255 50.19.188.0/24