Key takeaways The numbers on a credit card help identify the credit card network, the company that issued the card and the ...

We’ll explain what the numbers on your credit card mean. First off, you should know that credit cards that operate on the Discover, Mastercard and Visa networks are 16 digits long, whereas ...

Your credit card number should follow the standards set by ... card issuers use to process card transactions. Mastercard, Visa, American Express and Discover are all card networks to authorize ...