You will notice that there are two prefixes listed on your certificate.
One is a GS1 Company Prefix and one is a U.P.C. Company Prefix. These are essentially the same number—the U.P.C. Company Prefix is derived from the GS1 Company Prefix by removing the leading zero.
The U.P.C. Company Prefix is only used when creating U.P.C. barcodes for selling your product at a store or online. The GS1 Company Prefix is used when creating all other GS1 Identifiers--refer to your prefix certificate for the full list of available GS1 Identifiers.
The Company Prefix identifies your company as the brand owner. To see how major retailers confirm brand ownership, use our GS1 Company Prefix Directory (GEPIR).