incrediBILL - 10:18 pm on Nov 14, 2011 (gmt 0)
I had an attempted drive by scraping from those ranges this morning.
Got hit requesting over 500 pages by about 45 different MS IPs, each asking for around 15-20 page each, all using this UA:
"Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/534+ (KHTML, like Gecko)"
What in the hell is going on over there?
... and it's still ongoing, more page requests being made as I type this...