Called and said the government had gotten a shipment of new equipment, and said to press 1 to talk to an agent. No option to be removed from list. Hung up. Called back and said the number was not service.
SCAM.
I suspect this is the new thing. Their computer tells them you're on the "Do Not Call" list, but calls anyway and hangs up and leaves no message. They're thinking if they simply hang up then they haven't violated the "Do Not Call" regulations/law/whatever it is. They're playing passive-aggressive: "As soon as we realized you were on the list, we hung up... sorry." They're hoping a certain number of people will call back to see who it was or to complain.