Barcodes/Non Standard Barcodes

Examples of proprietary retail barcodes

• ASDA-13 - based on EAN 13, used by ASDA in UK
• ASDA-8 - based on EAN 8, used by ASDA in UK
• MS-7 - based on EAN 8, used by Marks & Spencer in UK
• Wickes-8 - based on EAN 8, used by Wickes in UK
• Woolworth-8 - based on EAN 8, used by Woolworth in South Africa
• Bonarea, in Spain, use 20 digits barcodes: https://world.openfoodfacts.org/code/00xxxxxxxxxxxxxxxxxx (8000+ products)

Marks & Spencer Barcode Types: M&S 7 (A/B/C)

They look like this: M ddddddd S
M and S are just the guards, they are not encoded in the barcode
This barcode is a subset of EAN 8 introduced in 1990 by Marks & Spencers. It is intended for use on products for in-store use throughout the Marks & Spencer's chain.
Format: 0 SSS UUU C: S = Supplier Series, U = Unique Product barcode, C = Checksum<br\> M&S 7A, 7B and 7C are three different versions of the barcode scheme (differences?).

Lidl/Aldi

Some discount stores of German origin e.g. Lidl and Aldi use EAN-8 codes, mostly for products of their own brands. Aldi is said to be using their own system based on EAN-8 called Aldi Nord Code (ANC).