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.

The ’00’ ZIP code strategy may not always work, so it’s practical to have a backup payment method, like a debit card or cash, while travelling in the U.S. That way, if your credit card is ...

Your billing ZIP code, sometimes called your credit card ZIP code, is “associated with the address where you receive your bill. Or, if you receive e-statements, with the address you've listed on ...