He wasn't sold with AKC papers, but I did see his parents and they look like huskies. Personally, I don't care if he's a full or a mix. I love him either way. It's just tiring when other's question it because of his coloring(or lack of), ear shape/size, floppy ear, etc.Cute. He could be full Sibe. He could be a very Sibe looking mix. Do you have a reason to believe one way or the other?
If he was sold with AKC registration papers, and you have reason to doubt his parentage, you need to contact the AKC.