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Decoding the USPS Intelligent Mail Barcode

The Intelligent Mail Barcode (IMB) is a 65-bar barcode for use on mail in the United States. The term “Intelligent Mail” refers to services offered by the United States Postal Service for domestic mail delivery. It effectively incorporates the routing ZIP code and tracking information included in previously used postal barcode standards.Use of the barcode provides increased overall efficiency, including improved delivery, and new services. The main component of the barcode is the Delivery Point Identifier (DPID), an eight-digit number that encodes the destination of the mail. This is th...

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