I received a call from this number too. The call was placed at 5:56 pm on 12/8/16. The only ID said V20820571200003. Like Icarus, I did not block this number... for now.
Ok, they called AGAIN and left no message AGAIN- this time at 9:33 am on Saturday morning when I was STILL SLEEPING. That's what I get for being a nice guy and giving them the benefit of the doubt. This is NO wrong number. Blocked the a$$holes.