Finding Your Card Validation Number

On most cards, the Card Validation Number is on the back at the right end of the signature block. The last block of digits are the CVN, as shown below.

The CVN as you might find it in its usual place at the right-hand end of the signature block.

On American Express cards, the CVN is printed on the front of the card above the card number, in small text that is not embossed

The CVN  as you might find it on the front of an American Express card.