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POSTNET Barcode

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POSTNET is a US postal barcode that stores ZIP code digits in full and half-height bars instead of bar widths. It sped up letter sorting for decades before the Intelligent Mail barcode took over.

Also called Postal Numeric Encoding Technique, USPS POSTNET, ZIP+4 barcode.

In this family

Specifications

StandardUSPS Publication 25 (historic)
Character setNumeric (0-9)
Capacity5, 9 or 11 digits (ZIP, ZIP+4, delivery point) + check digit
Error correctionCheck digit making the digit sum a multiple of 10 (PDF states 'no' – see notes)
Dimensionpostal

Where it is used

US mail sorting (retired for automation prices in 2013, replaced by Intelligent Mail barcode)

People use it for uS mail sorting (retired for automation prices in 2013, replaced by Intelligent Mail barcode).

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Example

442120798

Scan and create

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Related codes

Questions

Is POSTNET still used?

US mail sorting (retired for automation prices in 2013, replaced by Intelligent Mail barcode). POSTNET is a US postal barcode that stores ZIP code digits in full and half-height bars instead of bar widths. The camera app does not scan this. The Zebra app does not scan this.

How does POSTNET encode a ZIP code?

POSTNET is a US postal barcode that stores ZIP code digits in full and half-height bars instead of bar widths. The cited standard is USPS Publication 25 (historic). The camera app does not scan this. The Zebra app does not scan this.

What replaced the POSTNET barcode?

POSTNET is a US postal barcode that stores ZIP code digits in full and half-height bars instead of bar widths. The cited standard is USPS Publication 25 (historic). The camera app does not scan this. The Zebra app does not scan this.