The GS1 Global Company Prefix (GCP)
The GS1 Company Prefix provides a way for GS1 Member Companies to uniquely and globally identify things like trade items, logistic units, locations, parties, and assets. The GCP is used to construct GS1 identification keys. The GCP is issued by GS1 Ireland and can contain 7, 9 or 11 digits. The GCP 7, 9 and 11 allows users to create 100,000, 1000 and 10 GTIN’s respectively.
| GCP Size | I | R | L | | | | | | | | | | Check Digit |
|---|
| GCP 11 | 5 | 3 | 9 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | R | C |
| GCP 9 | 5 | 3 | 9 | 1 | 2 | 3 | 4 | 5 | 6 | R | R | R | C |
| GCP 7 | 5 | 3 | 9 | 1 | 2 | 3 | 4 | R | R | R | R | R | C |
The GS1 Ireland Company Prefix assigned to a member company shall entitle that company to create any of the GS1 Identification Keys. The single exception is when Ireland or another GS1 Member Organisation issues complete GS1 Identification Keys, one by one. In these circumstances a complete GS1 Identification Key shall not be considered as a GS1 Company Prefix. In Ireland for example, global location numbers and the GTIN-8 fall under this category.
