52.84.166.0-52.84.167.255 52.84.166.0/23
52.84.168.0-52.84.175.255 52.84.168.0/21
52.84.176.0-52.84.191.255 52.84.176.0/20
52.84.192.0-52.84.193.255 52.84.192.0/23