Demystifying the 4-Digit ZIP: Beyond the Basic 5
Demystifying the 4-Digit ZIP: Beyond the Basic 5 Most of us are familiar with the 5-digit ZIP code, a cornerstone of the US Postal Service’s (USPS) mail delivery system. But what about the elusive 4-digit ZIP? Is it a myth, a typo, or something more The truth is, the 4-digit code you might encounter isn’t…
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