Credit card numbers contain a unique ID for the issuer: http://en.wikipedia.org/... | Hacker News

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saryant on June 4, 2014 | parent | context | favorite | on: Show HN: Card – An interactive CSS3 credit card fo...

Credit card numbers contain a unique ID for the issuer: http://en.wikipedia.org/wiki/Bank_card_number#Major_Industry...

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