This is my area code so I answered the first time. She started her spiel about saving me money on my energy bill. I broke in and asked her : "Since I am on the Do Not Call List this call is illegal, If your willing to do that what else is your company doing that is against the law and why would I want to have dealings with company that is willing to break the law? There was a moment of silence before she hung up. I have since blocked the number using the Android app "Truecaller"
After many calls and no messages from them, I called the number and a lady answered: "Energy Cost Savings". They have a website. I spoke to the person that answered and asked to be taken off their call list. She said she would be happy to do that for me. We'll see if it works!