54.197.172.0-54.197.175.255 54.197.172.0/22
54.197.176.0-54.197.191.255 54.197.176.0/20
54.197.192.0-54.197.207.255 54.197.192.0/20
54.197.208.0-54.197.211.255 54.197.208.0/22