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.
Received a text message from this number - "I'm on my way." Is this a new scheme to get people to call back by posing as someone you know ? Hmmm Did not respond and blocked number.