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What do the first digits mean?

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Sunday, January 28th, 2007.

Wonder what do those cryptic numbers on credit cards mean? Based on the first digits you can guess what kind of the card is.

  • 1,2: Airlines
  • 3: Travel/Entertainment (American Express)
  • 4,5: Banking/Financial. (4 = VISA, 51-55 = Mastercard)
  • 6: Merchandising/Financial (Novus/Discover)
  • 7: Petroleum
  • 8: Telecommunications
  • 0,9: Other

via. Images copyright @ wikimedia.org.

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