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.
 Aug 31st, 2012
Got numerous calls from this number. Finally answered to tell this jerkoff to stop calling and they hung up on me. I blocked the number from my phone and reported to DNC, although the DNC seems to do absolutely nothing about it!!!
 Aug 29th, 2012
I looked on Yahoo for that 800-783-1755 number that Utility Supply gave as a call-back number. What came up is an alcohol rehab center, Southcoast. Anyway, this outfit in Washington State is calling people who do not even have Con Edison, we have PPL here in eastern Pennsylvania. Con Ed is in New York. Go figure. Best not to bother with answering these calls. They never leave us a message.
 Jul 25th, 2012
I've been getting snail mailings from some outfit wanting me to change my power supplier, so it's probably them.
 Apr 12th, 2012
I didn't pick up; caller left no message.
 Mar 28th, 2012
Well ... They just called again ... the number id: 206-397-1131. However, I told the rep., (I believe she said "Dianne" was her name), I was nervous about giving any info to a company I had never heard of and could I call her back. She gave me a number 800-783-1755 ext.330) and said she was with the "Gas Savings Center". My guess is a sleazy boiler room outfit ...... and I hope they can wake up in the morning and look at their reflections in a mirror with a clear conscience.

Good Times,
N. McShane
N. McShane
 Mar 27th, 2012
1 call so far.
 Mar 26th, 2012