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Reply To: How does credit/debit card numbering work?

Forums Dark Omen Discussions How does credit/debit card numbering work? Reply To: How does credit/debit card numbering work?

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Most often 16 digits sometimes 17. First numbers correlate to your card, mastercard, amex, visa etc.

The CVC on the back are three numbers. On American Express (AMEX) cards, it is usually a four digit code on the front. They’re your security numbers. SUPER RANDOM!

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