What exactly would you like a list of phone numbers to do Cal? The DNC registry is simply that. It's not a law and not a body of regulators and cannot summon a personal strike force to break in the doors of call centers. Complaints to the DNC site form a handy pool of intel for law enforcement, something you are all repeatedly prompted to read about at registration time.
Q&A: The National Do Not Call Registry
When faced with a suspicious sales caller, as this one sounds like, you can bet your verbal ''shut ups'' will be ignored. First try a direct approach of sending a ''cease communication'' notice via USPS Certified with return card, which sets up the offender for legal damage if that notice is ignored. If you can't pin down a valid address, you can always spread your reports to the FTC and attorneys general, and meantime work on some call block strategy.