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So if I mail a letter to Honolulu, HI from Tallahassee, FL,
Tallahassee post office employees do not care about the last four
digits of the ZIP code. They know that this letter is going to the
West Coast. At some point down the road a post office will look at
the next two digits, which identify a sectional center. Finally the
remaining two digits identify a single post office. |
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