Who called from 7124290351

I have received 2 calls from this number but when I answer there is no one speaks.

712-429-0351 when I call them back it says number has been disconnected how is this possible and who could it be?

(712-429-0351) I recieved several prank calls from this number.  The guy's name is Arron Ball, and lives in Michigan.

This is the second "unknown" number I have gotten a call from today. I did call block to block my number and then called it back. I got a recording saying that number had been disconnected. I have just moved and gotten a new phone number. I am going to add this number to the NO CALL List.

Same thing, I received a call from 712-429-0351 when I answered noone is there and when I call back it says it is disconnected...