what are the 4 digits after my zip code

what are the 4 digits after my zip code

1 year ago 66
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The four digits after your zip code are called the ZIP+4 code. This code is a 4-digit code appended to a standard 5-digit ZIP code that helps the USPS sort, route, and deliver mail more efficiently. The extra four digits on ZIP codes identify segments of fluid postal delivery routes. They are not permanent lines, so a 9-digit ZIP code can change regularly. Using the full ZIP code with the extra 4 digits when mailing via the USPS ensures the fastest, most accurate mailing possible. Its important to note that ZIP+4 codes are based on actual delivery routes and can change fairly regularly.

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