Quote:
Originally Posted by taustin
And expiration date can be guessed at, in may cases, especially if you're smart enough to know that the first four digits tell you what bank issued it (and thus, what their policies likely are on how long cards are good for).
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True. I remember seeing a breakdown somewhere. Just can't remember the site exactly.
1st digit: Card Type
3 = American Express
4 = Visa
5 = MasterCard
6 = Discover
Next 3 digits tells you which bank and I'm pretty sure I've seen a database of those.