What is a UPC barcode?

A Universal Product Code (UPC) barcode is a unique 12 digit code that identifies a product. The code has three parts: a Company Prefix, an Item Reference Number, and a Check Digit. The Electronic Commerce Council of Canada is responsible for the accurate assignment and annual license of Company Prefixes. The Company Prefix is for the exclusive use of the company to whom it is assigned. The Item Reference Number is assigned and managed by the Company Prefix holder to uniquely identify each product or service. A single digit Check Digit is used by the barcode scanner to verify that the complete number was correctly decoded.