Courtesy of Abovenet. Oddly, <10 results for exact UA or full IP via G:
209.249.140.1* Box-Agent/1.0
robots.txt? NO
Req: HEAD URI: /favicon.ico (x2; 55 seconds apart)
keyplyr
2:37 am on Jun 28, 2010 (gmt 0)
Does anyone block Abovenet?
dstiles
10:02 pm on Jun 28, 2010 (gmt 0)
Most but not all.
A few ranges seem to be more like business DSL than server so those are allowed until proven to be "servers", with a few holes drilled in the range where I know they are pure servers. (For server read "server or bot" - the latter may originate from business (static) DSL just as well as from servers and often do.)