I use to get these called all the time, but then they stopped. Now for some reason they have started up again.
Also got one call from some credit card number today. I don't answer any call with a different area code. All my family live in this area except for a few and they know to call my cell phone. There is no sense talking to then or telling then not to call you again they don't listen, so what's the use answering the phone. Check caller ID, if you don't know the number don't answer. Don't let them get under your skin. It's not worth your time.
They've called three times and never leave a message. The first time I answered because I was expecting an out of town call. I heard the tell-tale telemarketer silence so I hung up. No idea what it is.