Received a call today, 9/19/2014 @ 12:44 PM from this particular phone number and my Caller ID display "Unavailable 301-375-2073" and usual, no VM was left. I didn't answer and since no VM was left, the call wasn't important to begin with.
I got a phone call from this number and indicted he is with PEPCO and want to install energy saving device. He said you will get $48 credit on your next two bills. Also $40 credit every summer. Why the phone number is unavailable?