So frustrating! Having the same problem. However, if you're on an iPhone and have the new iOS7, you can now block phone #'s...just blocked all the 201 340 #'s that have called me over the past few months.
I received a call from this number on 11/9 at 10:04 AM Central Time. I did not answer. I have never done business with anyone at this number and I am on the Do Not Call Registry. Please shut them down. Thank you.