There is something more in your credit card number than what you think it only is. The 16 digits on your card have meanings. And I just found out how to interpret them. If you own a VISA or MasterCard, the first digit of your credit card number could be either 4 or 5.

Do you want to interpret the rest of the digits? Follow the guide below. It worked on mine. Leave me comments if it also works on you.