Card Verification Number
This code is a three- or four-digit number printed on the back or front of credit cards. This number ensures that your customer has physical possession of the card at the time of the order.
| Visa | Card Verification Value (CVV2) | Back of the card: if present, 3 digits in the signature area to the right of the credit card number |
| MasterCard | Card Verification Code (CVC2) | Back of the card: if present, 3 digits in the signature area to the right of the credit card number |
| American Express | Card Identification Number (CID) | Front of the card: 4 digits on the right above the card number |
| Discover | Card Identification Number (CID) | Back of the card: if present, 3 digits in the signature area to the right of the credit card number |
Sample card verification number for Visa, MasterCard, Discover, and Diners Club:
Credit card number Card verification number
