How can an ISP both lose and win in top 10 rankings?
By placing more than once!
Comcast got pushed out of first place by AS 46475 LIMESTONENETWORKS
and AS 21788 NOC in the
November 2011 Monthly U.S. SpamRankings.net from CBL volume.
AS 20214 COMCAST-20214 did spam a third less (1,503,173 spam messages)
than last month (2,193,898),
but it was the spontaneous spam spewing of the two top place newcomers
that pushed it down to third place.
Yet Comcast really won the month. It took 4 of the top 10 (places 3, 6, 7, and 10), which is twice as many as last time, and accounted for 30.29% of top 10 spam spewed, up from 23.9% last time. That percentage beats either of the top two this time.
-jsq
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