Had a missed call from this number (+12128640943). Called it back and there's a message that says "The number you called is not in service". Well, there you go!
Had a call from +1 2128640943 on my mobile at 10:15 am UK time my wife also has calls from a similar number with a New York code. Bearing in mind the time in New York is about 4:15am I suspect this is a computer generated call! Very annoying