The first six to nine digits of a UPC are referred to as the “Company Prefix”, and they are assigned by a non-profit organization (GS1 US formerly the Uniform Code Council). This number uniquely identifies a company and always remains constant on all of a company's products.
How do you assign UPC codes to products?
How to Get Your Unique UPC Codes:
- Calculate how many products need UPC codes. ...
- Join GS1 US and apply for your GS1 company prefix. ...
- Assign a unique product number. ...
- Choose a barcode design. ...
- Determine how to display the barcode. ...
- Order your UPC barcodes. ...
- Test the printed barcodes.
How is UPC number calculated?
Information
- Add together the value of all of the digits in odd positions (digits 1, 3, 5, 7, 9 and 11). ...
- Multiply that number by 3. ...
- Add together the value of all of the digits in even positions (digits 2, 4, 6, 8 and 10). ...
- Add this sum to the value in step 2. ...
- Take the number in Step 4. ...
- The check digit is therefore 3.
