This phone number has called my home phone number (which I never give out to anyone) numerous times over the last several weeks. My boyfriend picked up the phone when they called and they asked for the person in charge of the Pepco electricity bill. He said they'd have to call back later because I wasn't home. They did, and I answered the phone. They again asked for the person in charge of the electricity bill, I asked what it was in regards to, they just said "the electricity bill maam" and I said "well, I think you've got something wrong because our building has all utilities included in the rent and so there's no one person responsible for the electricity bill in any apartment in this building." He immediately replied "well, thank you very much and have a great day."
I think it's a scam. Don't give them any information at all. If you have Pepco, you should hang up and call them immediately to find out what the situation is if there is a problem.