Look For Made In Israel Sticker, Not The 729 Barcode

I have been boycotting anything Israeli for decades but i have seen some interesting posts on Social Media referring to tell if something is from Israel by the first three digits of the items barcode.
These posts explain that if the barcode starts with the number 729, 841, or 871, these products have been manufactured in Israel and to leave them on the shelf to show support for Palestine so intrigued, i emailed the people at the GS1 who are the UK's Barcode standards Organisation and the people who actually provide the numbers and asked them and they poo-pooed it, stating that: 'The GS1 Prefix does not indicate that the product was manufactured in a specific country or by a specific manufacturer. It may have been produced anywhere in the world.'
The small nugget of truth is that while it’s true the prefix 729 shows that a company is registered in Israel, that doesn’t mean a specific item was produced there and Barcodes starting with 841 are allocated from Spain and 871 from the Netherlands.
I use the old fashioned, if it says 'Product of Israel' on the packaging i leave it on the shelf and it was the European Union's top court that ruled that EU countries must identify products made in Israeli settlements so you now that they are not sneakily just leaving the labels off but if you really want to stick it to the country, the Palestinian Boycott, Divestment, Sanctions (BDS) website does provide a handy guide to companies you should avoid and why.

Hewlett Packard Inc (HP Inc) for providing services to the offices of Israeli leaders
Texaco for extracting gas on behalf of Israel in the East Mediterranean.
Siemens for supplying the cables to link Israel’s illegal settlements to Europe.
PUMA for sponsoring of the Israel Football Association (IFA)
Carrefour for supporting Israeli soldiers with gifts of personal packages.
AXA for investing in Israeli banks
SodaStream for racial discrimination against Palestinian workers in its Israeli factories based in occupied territory.
Intel for building its plant on occupied Palestinian land.
Barclays for providing loans and underwriting companies whose weapons, components and military technology have been used against Palestinians.
Google and Amazon for providing technology to the Israeli government and military.
Airbnb/Booking/Expedia for offering rentals in Israeli settlements built on Palestinian land.

A 2016 poll showed that 40% of Brits supported boycotting Israel and the boycott had reportedly shaved 5% off its annual export income with Israeli exporters saying it is becoming harder to get other nations to accept their wares so it's working.