-- Search Engine Spider and User Agent Identification
---- Server Farms - Sept. 2013
lucy24 - 6:24 pm on Dec 13, 2013 (gmt 0)
via an EU server farm
It isn't a server farm. Well, it might be part of one physically, but the whole /22 belongs to Baidu Hong Kong. And you won't find anything bigger than that in 185. The whole sector started to get allocated after RIPE decreed that it was no longer going to give out IPv4 addresses in anything larger than /22 blocks. (Got a vague idea this announcement came about a year ago, but I may have misplaced a year or more.) So far they're up to, I think, the mid-30s.
It's possible that there will be some huge surge in IPv6 connectivity and then they'll drop the /22 restriction, so further along in 185 we'll start seeing bigger chunks. But that would have to happen pretty soon, or not at all.