Because I was expecting a call from the AC tech, I answered this number. Turned out to be Josh from "customer service" telling me I'd won a vacation! I hung up at that point and have now blocked the number.
I downloaded an app called Caller ID & Block by CallApp today. It states that you can find out who is calling you (even if not in your contact list). Well I received a call from this # yesterday. I added this # to my don't answer list. Well after downloading app, it showed that the caller was Wells Fargo, very interesting.