When someone asks this question, they are talking about the UPC or EAN symbol found on most retail products around the world. Specifically, they are asking how to obtain a Universal Product Code Identification Number which they can encode into a UPC-A or EAN-13 bar code symbol on their product.

In the United States of America a company can obtain a unique six digit company identification number by becoming a member of the GS1 US.

The address and phone is
GS1 US
Princeton Pike Corporate Center
1009 Lenox Drive, Suite 202
Lawrenceville, NJ 08648

Before signing up for with GS1 please contact Acutrack first to go over specifics about your requirements. Acutrack : 888-234-3472