Each GS1 Company Prefix (GCP) has an allotted range of numbers and are assigned sequentially to members.
Once you've assigned all the numbers from your allotted range, it is impossible to add additional numbers using the same prefix. You will need to purchase a new licence and a new prefix will be assigned.
GS1 Ireland offers 3 Barcode Licence Prefixes and Ranges:
Key:
P = GS1 Company Prefix - the first 7, 9, or 11 digits which are licenced and assigned by GS1 Ireland. The length of the prefix determines how many numbers you can create.
I = Item Reference - the next 1, 3, or 5 digits of the barcode which are used to identify your product.
C = Check Digit - the final digit of the GTIN, calculated using either a Check Digit Calculator or Barcode Manager to ensure the integrity of the number.
If you need a new prefix (I'm already a member, how do I purchase a new licence?) or want to know more about the available Barcode Licences, our team is happy to help.