Card Identification Number
For your protection, please verify your credit card information by entering the card identification number. Card Identification Number verification is a proven tool to reduce the risk of credit card fraud. These numbers are the equivalent of the "card swipe" you perform in a store to prove that you have the credit card in your possession. CallingCard.com will never store your Card Identification Number and uses it only to verify the presence of the physical card.
MasterCard, Visa, Discover
The card identification number is the last 3 digits of the number located on the back of your card next to your signature.
American Express Cards
The card identification number is the last 4 digits of the number located on the front right of your card above the credit card number.
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