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Can Japan not obtain another country code from Visa/Mastercard (part of the first 6 digits)?

• BelleOfTheBall 6y ago
  I assume that it could work as a temporary solution but the article hints that this problem will likely become global soon. So, instead of moving numbers, it's easier to add some and increase the possible combinations.
  • spiznnx 6y ago
    I think it's better (for Japan) to force it into a global problem than a domestic problem. Then more people will care about fixing it and the issuers will retain international interoperability.
    • GoblinSlayer 6y ago
      No, let's first see how Japan fixes it.
  • nikanj 6y ago
    15 digits can make for 1,000,000,000,000,000 different card numbers, leaving 16th digit for checksum. This is a completely made-up problem, caused by chopping the number into card type, bank id, etc.