Getting more information from a barcode
Barcode database sites or apps search the internet for information pertaining to the particular barcode number that has been entered or scanned. The information that is returned is generally company name and/or contact details, relevant product information or even where you are able to purchase a product from.
You can search for any EAN-13 or UPC barcode on various sites or apps (such as International Barcodes Database, IBNREG, or using smartphone apps). If you own a barcode number, and no results are found when you run a search, you can have your barcode registered to ensure your information is displayed when searched.