Caller Type: Unknown
Phone Number Report: It doesn't help to put them on a no-call list as they have blocks of numbers to use.

Caller Type: Telemarketer
Phone Number Report: Call daily, for weeks now, to "inform" me about energy deregulation in my area. I have asked to be removed a dozen times. Today, I asked to be removed again, and the guy answered "Why? We are just calling to inform you..." and launched into his spiel anyway. When I interrupted him, he hung up.