The remaining card number, except for the last digit, is your personal account number, the last digit is the Luhn check digit. The leading 6 digits in the front are called the ' bank identification number (BIN)', also known as the ' issuer identification number (IIN)', which is why the first 6 digits of some credit card numbers are the same. It is similar to a credit card, but unlike a credit card, the money is transferred directly from the cardholder's bank account when the transaction is executed.Ī credit card number or debit card number consists of two parts.

Debit cards (also known as bank cards, plastic cards or check cards) are plastic payment cards that can be used instead of cash when shopping.