Quote:
This is a safety lock for the attacking servers.In recent days we register DOS attack on our infrastructure from these servers. To ensure the operation of our services we proceeded to modifications, which eliminates the impact of attacks. Your server was located between these networks . Owner and operator of data center IP ranges are reported. Assume that after solving the problem on their side, and after notification to us that the problem is solved we available network without delay.
As you can see your ISP banned whole IP range and our server fall into this range. It does not even mean that our server is really the one doing DOS (and it's not because that would be stupid).