This is kind of scary. I keep getting phone calls from a number that just says "unknown" and when I answer, they hang up. I've gotten about seven of those calls in the past 2 days. Then last night at around 1am, the phone rings again with the same unknown number. In my daze, I answer the phone and I hear a woman talking. She asked me who I was and I stupidly gave my full name, thinking it was a wrong number. She repeated the name back to me and when I asked who this was, she said "Courtney Cox." I hung up on her thinking it was a prank, but now I'm really worried about what that call was. I know nobody who would prank call me to begin with, much less do it seven times. And the fact I gave my full name to this person or persons has made me pretty paranoid. I looked online to see if people have experienced similar calls, but nothing so far like this. I'm thinking about getting my number changed, but I wonder if that's even enough. What should my next course of action be?