What do the extra numbers on a ZIP code mean?

The four extra numbers are added after a hyphen to complete the ZIP+4. So what do the extra numbers mean? These last 4 digits represent specific delivery routes within delivery areas. This extra detail means an even more precise matching to a more granular level.

What happens if you forgot to put the ZIP code on a letter?

A letter without a ZIP code may not reach its intended destination. That is because of the way addresses are read by automated postal systems. Rules that are taken for granted when people send mail are actually unusually strict to increase post office efficiency. Processing machines read addresses from the bottom up.

Is zip code and PO Box the same thing?

PO BOX uses for receiving letters or posts from anywhere of the world. The PO Box is a rental base number that can be booked from their countries post services. Postal Code is an area code, in USA zip code used as a postal code; Postal code is almost from digit numbers 5 to 9.

Is postal code and ZIP code the same?

A postal code (also known locally in various English-speaking countries throughout the world as a postcode, post code, PIN or ZIP Code) is a series of letters or digits or both, sometimes including spaces or punctuation, included in a postal address for the purpose of sorting mail.

How should ZIP code be written?

Since our caller works for the U.S. government, and ZIP codes are a government thing, I checked the US Printing Office style guide first. It recommends “ZIP Code.” Associated Press style is similar: “ZIP code”—two words with “ZIP” in all caps—but it uses a lowercase C, and I was surprised it would deviate.

Will USPS deliver if ZIP Code is wrong?

Usually what happens is a carrier or post master from the office where the package is sent will correct the zip code by looking at the address and even reach out to that particular post office to ensure the package is delivered to the correct address.