For instance, the first number of the card number will vary depending on the type of card.Ī great article about credit card numbers is "Anatomy of Credit Card Numbers".Īnother notable thing about the card number is it is actually created using a particular algorithm and thus there is a check, called the Luhn 10 check that verifies that the card number was generated in accordance with this algorithm. The one thing to point out is that credit card numbers have some unique properties. Names and Expiration dates are pretty straightforward and don't need much explaining.Ĭredit Card Number - Also known as "Primary Account Number" (PAN).
It's sort of good to understand the components of this interface because they're present in to the other interfaces (but a little different).įrom a physical perspective, your card should have four main attributes: Physical AttributesThis interface is probably the most widely known and understood because its been around the longest and its the easiest to inspect. Note that some data has been changed to protect the card holder's (my) information.
The purpose of this post is to evaluate all three interfaces of the card and see how they differ. This obviously varies from bank to bank and card manufacturer to card manufacturer. Modern credit cards in the United States have three interfaces:
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