On 5/17/17 I got a call from "Upper Marlboro, MD" from this number, and they did not leave a message. I don't answer calls that don't show up on my caller ID, thinking they are scammers when they don't leave a message, and I always block them.
These dillweeds are getting somewhat more crafty. They did the old 'one full ring' and stop routine. And, then, immediately called back within 20 seconds. Nah. Not gonna work on anyone with a brain. Give it up youdickheadedfuckers. Just another number to add to the blocker app.