Since the CLID said "WIRELESS CALLER" and the number is local, I picked up and said "hello". I immediately received a recording that started out by saying "Congratulations, you have just won a free cruise". I immediately hung up the phone. 95% of the time I don't answer or pick up the call and hang up immediately. Since I live in the ATL area, and since it looked like a cell phone - all I can say is they got me on that one!
First, (404) is a GA area code. Not to suggest this isn't a scammer, because it is and I suspect the scam has something to do with phishing. Be wary and like others have said, don't answer if it's not a number you don't recognize.