Your billing zip code, or credit card postal code, is the five-digit number on the bottom right, which in this sample is 90210. This would be the zip code associated with your billing address. It ...

“What ZIP Code do you use for a Visa gift card?” “I’ve tried this numerous times and it says my zipcode is wrong,” another echoed.

A postal code is a five digit code used to help postal services deliver mail and packages. Here's what the numbers mean and how they determine yours.