Life is getting tougher for the companies aiding and abetting users determined to obtain copyrighted materials without paying for them. Good!!
And a traceroute seems to indicate that Cogent Communications was the ISP involved.
I believe the term you're looking for is: cat-and-mouse. Piracy will never end and RIAA will never give up trying to fight it, as long as there's money to be made or money to be saved.