(update) I've gotten one call per day since I first reported this a couple days ago. Annoying that someone would waste their time doing this. I've gotten to the point where I just ignore it.
These scumbags are nothing more than scam artists. Whatever they are up to, don`t fall for it!!
My caller ID always says anonymous and a message is never left. Some people are cowards behind a computer screen and some people are cowards behind phone calls as "anonymous" callers who never leave you a message.