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A comment on The value of canonicity – Building Nubank. Parent comment

Re:The value of canonicity – Building Nubank by als0 on Saturday December 30, 2023 @05:00AM (#38814019)
Quite a few websites don't accept my Revolut or Monzo cards at all, despite being VISA/Mastercard. So there is clearly some way for them to detect these neobank cards.
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Re:The value of canonicity – Building Nubank by lmz on Saturday December 30, 2023 @05:32AM (#38814158)
It's called the BIN (card number prefix) try e.g. https://binlist.net/
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