The first digit of the card represents the category of industry (IIN) that issued your credit card. The check digit: The last digit is the check digit and is added to validate the authenticity of the credit card number (based on the Luhn algorithm).īank Identification Number (BIN) & Issuer Information Number (IIN) ranges.The account number: The number between the bank identification number and the check digit is 6 to 9 digits long and is used to identify the individual account number.This string of numbers identifies the issuer of the card.
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February 2023
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