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.

Visa-MC Card ID Graphic

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.

Visa-MC Card ID Graphic