.mn.rr.com dns possibly hacked?

One of my customers, who's got a cable modem off of mn.rr.com is reporting that roughly half the DNS lookups being done on their servers are returning the IP to www.lolitasex.com. I have no idea how widespread this is, but apparently others in minneapolis are seeing the same thing. If any of you have customers asking why their website is now a porn site, this may be why. :) -- Kevin