How many of you know what those numbers on a credit card really mean? Contrary to what you may think, they aren’t random.
Those 16 digits are there for a reason and, knowing a few simple rules, you could actually learn a lot about a credit card just from its number. This infographic shows you how to crack that code.
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Nice One
First letter represents two values.. 3 for Travel/Entertainment and 3x for Amex. Looks bit confusing.