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There is also another type of postal code, the ZIP + 4 code. According to unitedstateszipcodes.org, the ZIP + 4 was established in 1983 and identifies an even more specific location within a ZIP code.
You probably know your ZIP code by heart but do you know what it stands for? It turns out that the five or so digits point to some pretty specific information about you and where you live in the ...
Use ZIP codes!'" But the number that began as a sorting utility has since expanded far beyond our addresses. Today, our ZIP code determines how we are read by policy-makers, ...
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