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What does POSTNET stand for? 

What does POSTNET mean? This page is about the various possible meanings of the acronym, abbreviation, shorthand or slang term: POSTNET.

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Postal Numeric Encoding Technique

Miscellaneous » USPS -- and more...

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Postal Network

Computing » IT

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What does POSTNET mean?

POSTNET (Postal Numeric Encoding Technique) is a barcode symbology used by the United States Postal Service to assist in directing mail. The ZIP Code or ZIP+4 code is encoded in half- and full-height bars. Most often, the delivery point is added, usually being the last two digits of the address or PO box number. The barcode starts and ends with a full bar (often called a guard rail or frame bar and represented as the letter "S" in one version of the USPS TrueType Font) and has a check digit after the ZIP, ZIP+4, or delivery point. The encoding table is shown on the right. Each individual digit is represented by a set of five bars, two of which are full bars (i.e. two-out-of-five code). The full bars represent "on" bits in a pseudo-binary code in which the places represent, from left to right: 7, 4, 2, 1, and 0. (Though in this scheme, zero is encoded as 11 in decimal, or in POSTNET "binary" as 11000.)

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    "POSTNET." Abbreviations.com. STANDS4 LLC, 2024. Web. 22 Jun 2024. <https://www.abbreviations.com/POSTNET>.

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