Each country has one or several blocks of GS1 Company Prefixes to assign.
Some special ranges exist. The usage for some is GS1 Member Organisation (GS1 MO) specific. The GS1 Company Prefixes that begin with the 3 digits listed below are used to construct what are considered RCN's (Restricted Circulation/Distribution Numbers) or are specific to a particular industry, such as the publishing industry:
The "Universal Product Code, UPC, has been a dominant barcode standard in "North America since it was established in the 1970s. It encodes a 12 digit number (GTIN-12), unique to a product, which allows it to be scanned and read in virtually any major retail establishment. A 6 digit "zero-suppressed" version (UPC-E) is available for items which are too small to allow the larger UPC-A version to be printed.
The EAN-13 and EAN-8 are other point of sale barcodes that are widely used outside of North America. A UPC formed in the United States can be transformed into an EAN by prefixing it with a zero.
The Global Trade Item Number, GTIN, is an identification number that may be encoded in UPC-A, UPC-E, EAN-8, and EAN-13 barcodes as well as other barcodes in the GS1 System.