Quick Definition

Bank Identification Numbers (BIN) are the initial four to six digits on a credit, debit, or other payment card, which identify the institution that issued the card.

Examples

• 1A Visa card starting with 4512 is issued by Bank of America in the United States.
• 2A MasterCard starting with 5405 might be issued by Citibank.
• 3A debit card with the BIN 3779 indicates it is an American Express card issued in the UK.

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