This number was attached to an order made on my Amazon account. Someone hacked into my account, issued a refund on my most expensive recent order, then used that refunded gift-card money to order equally expensive headphones. Luckily I caught it right as it happened and cancelled the order, changed all my passwords, etc.

They also used a company called Shipito in Nevada as a go-between to forward their package to an unknown address after purchase. I contacted Shipito and they were happy to put a freeze on the fraudulent account.

But I very much doubt I was the thief's only victim. Please everyone be vigilant about your online shopping and keep an eagle eye on your accounts.