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The Complete Guide to ASIN Product Numbers

The Complete Guide to ASIN Product Numbers

We understand the importance of Amazon ASIN numbers and how they can impact your success as a seller. In this comprehensive guide, we will discuss everything you need to know about ASIN numbers, including how to get them and why they matter.

What is an ASIN?

Amazon Standard Identification Number, or ASIN, is a unique identifier assigned to each product in the Amazon marketplace. It is a 10-character alphanumeric code that is used to identify and track products on the platform. Each product listed on Amazon has its own unique ASIN. This helps Amazon manage product data and ensure that each product is correctly identified, sorted, and displayed in the right categories and search results.

When a seller lists a product on Amazon, they either match it to an existing product detail page or create a new product detail page. If the product already exists in the catalog, the seller will use the existing ASIN. If not, Amazon will assign a new ASIN to the product. ASINs are used by Amazon to organize and classify products in their catalog, and they play an important role in the search and discovery of products on the Amazon platform.

How to Find Your ASIN

To find the ASIN for a product on Amazon, simply navigate to the product detail page and look for the 10-character alphanumeric code in the product information section. If you are a seller and want to list a new product on Amazon, you will need to create a new product detail page and Amazon will assign a new ASIN to the product.

If you are selling a product that is already listed on Amazon, you can simply search for the product on Amazon and locate its ASIN number on the product detail page. However, if you are selling a new product that is not yet listed on Amazon, you will need to create a new listing and obtain a new ASIN product ID.

To create a new listing, you will need to follow these steps:

  1. Log in to your Amazon Seller Central account and navigate to the “Inventory” tab.
  2. Click on “Add a Product” and search for your product in the Amazon catalog.
  3. If your product is not found, click on “Create a new product listing.”
  4. Follow the prompts to enter all of the necessary information about your product, including the product’s title, description, and images.
  5. Once your listing is complete, Amazon will automatically generate a new ASIN number for your product.

Why are ASINs important?

ASINs are important for several reasons. They help to streamline product management on Amazon by making it easy to track and manage products across the platform. They also help to improve the user experience by ensuring that products are correctly classified and listed in the right categories, improving search relevance, and enabling easy product comparison.

ASINs are also important for Amazon sellers as they help them manage their product listings, analyze product performance, and optimize their listings for better search visibility. By tracking ASINs, sellers can monitor product performance, identify areas of improvement, and optimize their listings for better search rankings.

How are ASINs assigned?

ASINs are automatically assigned by Amazon when a product is listed on the platform. Amazon uses a sophisticated algorithm to assign ASINs based on product attributes such as title, description, and category. If a product has unique attributes, such as size or color, Amazon will assign a separate ASIN for each variation.

In some cases, sellers may need to request a new ASIN for a product that does not yet have one. This is typically required for products that are not yet listed on Amazon or for products that have unique attributes that are not covered by existing ASINs.


ASINs play an important role in Amazon’s search algorithm, as they help to classify and categorize products based on their attributes. By optimizing product titles, descriptions, and other attributes, sellers can improve the relevance and visibility of their listings in search results. This can lead to increased traffic, sales, and revenue.

However, it’s important to note that ASINs are not a direct ranking factor for Amazon search results. Instead, Amazon uses a complex algorithm that takes into account various factors such as sales history, customer reviews, and product relevance. Therefore, optimizing your ASINs alone is not enough to guarantee high search rankings on Amazon.

Using ASINs effectively

Now that you understand what ASINs are and how they work, it’s important to use them effectively to optimize your Amazon product listings. One important thing to keep in mind is to make sure that your product is properly matched to the correct ASIN in the Amazon catalog. This means ensuring that the product details match the information on the product detail page, including the product title, description, images, and other attributes.

How to Find a Product With ASIN

ASIN lookup on Amazon is easy. Simply go to Amazon’s website and type the ASIN code into the search bar. If the product is available on Amazon, it should appear in the search results. You can also find the ASIN on the product detail page, located in the product information section. ASIN number lookup to search for products on Amazon is an efficient and effective way to find the specific product you are looking for.

There is no official Amazon ASIN database that is publicly available. ASINs are unique identifiers that are assigned by Amazon to products in their catalog, and are subject to change over time as products are added or removed from the catalog.

However, there are several third-party databases and tools that exist which allow you to search for and obtain ASINs for products on Amazon. These databases are created and maintained by companies that collect and organize data about products on Amazon, and can be used to search for specific products or to perform bulk lookups of product identifiers.

How to Perform a Bulk ASIN Lookup

This can be done through various third-party tools and services that allow you to upload a list of product identifiers, such as UPCs or EANs, and receive the corresponding ASINs for those products.

One popular tool for performing a bulk ASIN lookup is the Amazon ASIN Bulk Lookup Tool, which allows you to upload a CSV file containing your product identifiers and receive a file with the corresponding ASINs. There are also many other similar tools and services available online that offer similar functionality.

Performing a bulk ASIN lookup can be a valuable time-saver for sellers who need to list a large number of products on Amazon. By using a bulk lookup tool, sellers can quickly obtain the ASINs for their products and avoid the time-consuming process of manually searching for each product on Amazon.

How Cluster can Help you with ASIN Lookup

Cluster can offer a variety of features beyond simply looking up ASINs, such as product research and analytics, keyword research, and more. We also have the largest structured SKU-level dataset available with over 1B items with full product level attributes (SKU, UPC, EAN, ASIN, GTIN, Color, Dimensions, etc.). Book a demo now!

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