I've gotten several calls from this number over the past week or so. From what I can tell from a little digging, whomever the person is and whatever "company" they say they work for is a fraud. I've seen everything from saying they're debt collectors to drug enforcement officers. They can be quite persistent and extremely rude. They never leave a message and never answer when you call the number back. What seems to work is telling them that all your calls are being recorded. They don't like that and from what I understand, will make them stop for the time being.