Application Identifiers

There are more than 500 Application Identifiers (AIs).

Just like a phone number’s area code can identify which state you’re calling from.

GS1 AIs give your business the ability to carry extra information in a barcode or RFID tag.

View the full list of AIs


What data can AIs identify?

GS1 AIs are used to identify all kinds of data. This data can then be captured in a barcode or RFID tag.

AIs are used to represent GS1 ID Keys such as GTIN, GLN and SSCC; and to identify other information, known as attribute data, like variable count, net weight, batch/lot number and expiry date.

Other AIs are used for things like shipment identification, coupons, refund receipts and more.

For technical information about AIs, go to section 3 of the General Specifications