I received at least 2 calls from this number this morning. When I tried to call back a message says the number cannot be completed as dialed. Verizon phone company doesnt know who it belongs to.

So I called my Senators office and told his assistant that this is either of a violation of the do not call list, or a loophole in it.

There should be a requirement that is a robo call contacts you, you should be able to use your caller ID to call them back. This isn't the first and only dead end caller ID phone number. Not to mention the number is "unlisted"