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 ...

Why do merchants sometimes ask us for our ZIP code when we buy something? I recently visited the Mob Museum in Las Vegas, an interesting addition to Sin City’s attractions. I paid my admission ...

Disclosing zip codes allows "people [to] track their purchases. It creates a profile and that information can be shared with other companies and that's dangerous to have that information in one ...

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.