Called cell phone no message left. Tried calling number back was told by U.S. Celluar call center that the call placed was a disconnected number. I too am on the do not call list.
One of the sources of these calls is Wyndham Hotels. I stayed at one of their resort properties in Orlando. They were the only company that I gave my cell phone number to. Within 2 days of giving them my number, the call started, offering a trip to Orlando.