You can find the ASIN number for a product on Amazon by looking at the product listing page or checking the product URL. The ASIN is usually listed in the “Product Information” section of the listing or presented after the “/dp/” part of the URL. Another great way to get ASIN numbers quickly and efficiently is by using SellerSonar. SellerSonar’s Reverse ASIN Lookup feature provides sellers with relevant product information by inputting the product’s name, keyword, or ASIN number.