I used to update the national online zipcode file at a major retailer. Each zipcode represents a post office.
Post offices open and they close or are merged so the master list always changes.
It's up to the seller to validate the zip specified in the ad (but dude! I'm so tired!).
Post offices open and they close or are merged so the master list always changes.
It's up to the seller to validate the zip specified in the ad (but dude! I'm so tired!).