|The Card ID number is printed — not
embossed — on the card and is an additional fraud-prevention
security measure, since this information is not included on
your billing statement or in any other written material, and
may only be found on the card itself.
On Visa or MasterCard cards, please turn your card over and look in the signature strip. You will find your card number (or just the last 4 digits), followed by a space, followed by a 3-digit number. That 3-digit number is your Card ID number.
|On American Express cards, look at the right-hand edge of your card just above the embossed card number. That 4-digit number is your Card ID number.|