Card Security Code (CSC) Location

		For Mastercard, Visa, and Discover turn your card over to the back side and look at the signature box. You should see either the entire 16-digit credit card number or just the last 4 digits followed by a special 3-digit code. This 3 digit code is your Card Security Code.
		For American Express, the 4-digit number is usually printed on the front of the card, above and to the right of the embossed account number. A few American Express cards print this number above and to the left of the embossed account number.