Just got a call from this number and did a google search on it. They didn't leave a message or identify the company/organization. I called back on another line and it said that I needed to press a key to be removed. I think it's a trap. I did not press. I have no idea who it can be. I don't know anyone out in Maryland area. There is ABSOLUTELY no reason for them to have my very private number. Is it some NSA backdoor agency or something? Very weird.