172.217.207.160-172.217.207.191 172.217.207.160/27
172.217.207.192-172.217.207.255 172.217.207.192/26
172.217.208.0-172.217.223.255 172.217.208.0/20
172.217.224.0-172.217.255.255 172.217.224.0/19