The ZIP+4 Code is a more detailed version of the regular ZIP Code system in the United States. Introduced by the USPS, it includes the basic five-digit ZIP Code followed by a hyphen and four additional digits. These extra digits identify a specific geographic segment, such as a city block, group of apartments, or individual high-volume receiver like a business or organization. By utilizing the ZIP+4 Code system, the USPS can achieve more efficient mail sorting and faster delivery times, as the additional digits provide greater precision when determining the destination.
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