This number just called my cell phone (which is registered with the National Do Not Call Registry) and I didn't answer.  When I couldn't find out who it was via the internet,  I called the number back from another phone and a recording redirected me to someone who asked for the number on which I was called.  I told them it was my cell phone and I refused to give it to them.  I asked who she was and was told she was calling on behalf of a car dealership I had done business with.  I said I haven't bought a car in 6 yrs so why would they be calling me now and she said it was probably to follow up and see if I wanted to upgrade. (She couldn't tell me anything specific without pulling my information which required my cell phone number.) I told her I wasn't interested and hung up.  Unfortunately, I was not able to request that my number be removed from their solicitation list without giving them my cell phone number since I called them.  If I get another call from this number, I'll make sure to answer it so I can tell them to remove me.