The more IPs I block from this group, they just seem to move to a new block of IPs. All are being hosted by live-servers.net and they just using block after block and keep on coming.
The current ranges being blocked are as follows:
88.208.192.These ranges never send any traffic with the exception of multiple crawlers from the same block at the same time and all IPs appear to be pointing back to a server farm so I'm recommending you just block 'em.
More IP updates on this group as they become available.