So I got a call from this number offering me an all expenses paid trip to Cancun, Mexico for 6 days that I had apparently won from some contest. I would have no trouble giving my information since I'm a broke college student in debt and there's absolutely nothing to steal. But, instead, the first thing they wanted to know was my age. The minute I said I was 21 they apologized and said it only applied to those over the age of 25. That would means mostly working people out of college who actually have money in their accounts. It appears scammers have gotten smarter over the years.
WCA Subscribers is the company that answers when you call back. It says the phone number is registered and that you can win some sort of prize. You can press 3 to remove a phone number from the list. It's says is will take up to 7 days to be removed.