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

Do credit cards have routing numbers? Learn how credit card numbers differ from routing and account numbers, and how to tell ...

First off, you should know that credit cards that operate on the Discover, Mastercard and Visa networks are 16 digits long, whereas American Express credit cards have 15-digit ... number may be up ...

Mastercard and Visa networks are 16 digits long, whereas American Express credit cards have 15-digit numbers. The series of numbers on a credit card are broken down into the following categories.