[thelist] Number of digits in Credit Card Number

[scott.brady at homeqonline.com]

I believe Visa and Mastercard are both 16 digits.  American Express is 15
digits.

I don't know about Discover.

> Hi, does any one know the number of alphanumeric characters for
> the following credit card numbers.  I was assuming 16 characters
> for all of them, but am not so sure anymore.

> Visa, Mastercard, American Express, Discover

Scott