Who called from 4147550463

Called every 5 minutes, 5 times in a row so far?  I blocked the call by using my Panasonic phone. It only rings once and they are history.  Who are these people?

I just received the sixth call from them and my phone blocked it again.  So, for the fun of it, I called that number back and I got a recording saying that number is not  a working number!

Mitt Romney-Official Site   if you click on report  this want it reads  plus they want a donation to the fund

called me asking for someone named norma.

We received calls twice tonight from this number.