Amazon ASIN Number – What It Is and How to Get an ASIN for Your Amazon Product
What is an Amazon ASIN?
Amazon ASIN stands for Amazon Standard Identification Number. It is a unique 10-character code used by Amazon to identify and organize products in its catalog. Every product listed on Amazon has an ASIN that helps track inventory, reviews, and product listings.
Amazon manages hundreds of millions of products. To keep everything organized, it assigns a unique ASIN to every product in its catalog.
If you sell on Amazon, understanding ASINs is essential. You need the right ASIN to list a product, manage your inventory, and show up in search results.
This guide explains what an ASIN is, why it matters, how to find one, and how to create one for a new product.
Free Amazon ASIN Finder
Paste an Amazon product URL below to identify the ASIN number used by Amazon.
What Is an ASIN Number?
An ASIN is a 10-character alphanumeric code that Amazon assigns to every product in its catalog. It always starts with the letter B, except for books where it matches the ISBN.
Amazon uses ASINs to keep its product database accurate and consistent. When multiple sellers list the same product, they all share the same ASIN. This keeps reviews, ratings, and product details in one place.
ASINs help Amazon with:
- Product catalog organization – each product has exactly one ASIN
- Inventory tracking – sellers and Amazon warehouses use ASINs to manage stock
- Customer reviews – all reviews for a product are grouped under one ASIN
- Search results – Amazon's algorithm uses ASINs to display the right product for a search query
Why ASIN Is Important for Amazon Sellers
For sellers, the ASIN is the foundation of everything you do on Amazon. Without the correct ASIN, you cannot list a product, run ads, or track performance.
Product Discoverability
Your product appears in Amazon search only when it has a valid ASIN correctly linked to the catalog.
Catalog Organization
Using an existing ASIN avoids duplicate listings, which can split reviews and hurt your ranking.
Advertising Targeting
Amazon PPC campaigns target by ASIN. You can run product-level ads only with a valid ASIN.
Inventory Management
Amazon uses ASINs to track your stock levels in FBA warehouses and seller-fulfilled inventory.
How to Find an ASIN on Amazon
There are three simple ways to find the ASIN for any Amazon product.
Check the Product URL
Open the product page on Amazon. Look at the URL in your browser. The ASIN appears after/dp/ in the URL. For example:amazon.in/dp/B08N5WRWNW— the ASIN here is B08N5WRWNW.
Check the Product Information Section
Scroll down on any Amazon product page to the Product Information or Technical Details section. You will see the ASIN listed there directly.
Find ASIN Inside Amazon Seller Central
Log in to Seller Central and go to Manage Inventory. The ASIN is displayed in the product listing column next to each SKU. You can also search by product name or barcode to find the associated ASIN.
How to Create a New ASIN on Amazon
If your product does not exist on Amazon yet, you need to create a new listing. Amazon will automatically generate the ASIN when you do this.
Log in to Seller Central
Go to sellercentral.amazon.in or .com and sign in.
Click Add Product
In the Inventory menu, click Add a Product.
Choose "I'm adding a product not sold on Amazon"
Search for your product. If it does not appear, select this option to create a new listing.
Select the correct product category
Choose the most relevant category. This affects your fees and discoverability.
Enter all product details
Fill in the product title, brand, description, images, and price.
Add UPC or EAN barcode
Enter the product's barcode. Amazon uses this to verify it is a unique product.
Submit the listing
Once submitted and approved, Amazon automatically generates a unique ASIN for your product.
Note: You do not choose your own ASIN. Amazon assigns it automatically after your listing is approved. Never try to reuse or copy an ASIN from another product.
How to Get an ASIN on Amazon – Quick Steps
- 1.Log in to Amazon Seller Central
- 2.Go to Inventory → Add a Product
- 3.Search for your product by name or barcode
- 4.If found, match to the existing ASIN
- 5.If not found, select "Add a new product"
- 6.Fill in all product details including UPC or EAN
- 7.Submit the listing for Amazon review
- 8.Amazon assigns a unique ASIN to your new product
ASIN vs UPC vs EAN vs ISBN
Sellers often confuse these identifiers. Here is a quick comparison:
| Identifier | Used By | Code Length | Purpose |
|---|---|---|---|
| ASIN | Amazon | 10 characters | Amazon product identifier |
| UPC | Retail (North America) | 12 digits | Barcode used mainly in North America |
| EAN | Global retail | 13 digits | International barcode |
| ISBN | Books | 13 digits | Identifier used for books |
Helpful Amazon Seller Guides
Once you have your ASIN set up, these guides will help you maximize your profits and performance on Amazon.
Amazon FBA Fees and Profit Guide
Understand every fee Amazon charges and learn how to calculate your true profit margin.
Amazon Listing Optimization Guide
Learn how to write titles, bullets, and descriptions that rank higher and convert better.
Amazon Referral Fee Structure Guide
See exactly how much Amazon charges as referral fees across all product categories.
Best Practices for Managing ASINs
Managing your ASINs well keeps your listings healthy and avoids account issues.
Avoid duplicate listings
Before creating a new ASIN, always search Amazon first. Creating a duplicate can get your listing removed.
Use the correct UPC or EAN
Always use a legitimate barcode that belongs to your brand. Fake or borrowed barcodes can lead to listing suppression.
Optimize your product title and images
A well-optimized ASIN ranks higher in search. Use clear, keyword-rich titles and high-resolution images.
Monitor ASIN performance
Regularly check your ASIN's sales velocity, Buy Box status, and review score in Seller Central.
Frequently Asked Questions
What is an ASIN number?
An ASIN (Amazon Standard Identification Number) is a unique 10-character code that Amazon assigns to every product in its catalog. It is used to identify and track products across Amazon's platform.
Where can I find an ASIN on Amazon?
You can find the ASIN in the product URL after "/dp/", in the Product Information section on the product page, or inside Seller Central under Manage Inventory.
Is ASIN the same as SKU?
No. ASIN is assigned by Amazon and is the same for all sellers listing that product. SKU is your own internal code that you set in Seller Central to manage your inventory.
Can I create an ASIN without a UPC?
In some cases yes. Amazon offers GTIN (barcode) exemptions for certain brands and categories. You can apply for an exemption through Brand Registry or the Seller Central exemption request process.
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