This number 473-405-9494 called my mentally challenged sons cell in February 2014 and racked up about an hour of minutes and the cost of the bill was 247.00.  The calls came from St. George, Grenada.  Please do not answer these calls or return them.  Once they get you to answer, they will keep you calling back and in his case he fell for it because of his disability.  It's awful when people take advantage of people.  Shame on them!