Who called from 7036001081

I have been getting repeated calls from this number in the last few days. Caller ID says it's a Washington DC #. But 703 area code is VIRGINIA. Various online sources give the location as Arlington VA and Washington VA. However, this page does not include "Washington VA" in its listing http://www.areacodelocations.info/7/703.html  Whitepages.com notes this number as "suspected scam." No message was left for any of these calls.

I received a call from this number and when I tried to call back it is silent. I think it might be one of those scam phone calls!

Called at 7:30 pm, hung up when answered.