The numbers on a credit card help identify the credit card network, the company that issued the card and the cardholder. Credit card numbers are either 15 or 16 digits, with each digit having its own ...

Perhaps the most important feature of any credit or debit card is the 16-digit number unique to that card. It is called an ISO number, and it is the key for linking each transaction conducted with the ...

Kelly-Ann Franklin has spent more than two decades in journalism which has helped her build a wide knowledge base of business and personal finance topics. Her goal with editing is to ensure tough ...