Call but no message

I'm getting them once or twice a day but have not answered,

I answered this call and some guy saying something about "dream of a lifetime sweepstakes" and do you have any of these credit cards (he rattles of the usual credit cards: visa, mc, amex). I said what is the purpose of this call- (he had my first name), he kept trying to see if I had credit cards. I don't recall entering any such contest, but if I had, certainly he would already know this info. I told him you are soliciting do not call me again and I hung up on him!

where do you all live? today i got that call and no 1 is responding or picking up

I get this number calling me to answer nobody says anything

Never leaves msg.  when calling back it is either busy or disconnects.

I am also getting calls from this number daily. I tried calling back and it hangs up.

I am also getting these calls a lot, but more like 3-4 times a day. Not a clue as to who this is.

I'm getting these calls about twice a day.  No messages.  Anyone know who or what this is?