Online POSTNet Barcode Maker


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The POSTNet barcode is a barcode symbology used by the United States Postal Service (USPS) to assist in the sorting and delivery of mail.

Its historical origins can be traced back to 1978, when the USPS began researching how to use computer technology to improve mail processing efficiency.

The advantage of the POSTNet barcode is that it can encode postal codes, postal codes + 4-digit codes, and delivery points, providing more detailed address information. It can also be combined with other barcode symbologies such as Planet or Intelligent Mail barcodes (IMb) to enable more service functions and tracking data.

The inventor of the POSTNet barcode is George Laurer, an engineer at IBM who designed the barcode in 1979 and patented it in 1982.

POSTNet barcodes are primarily used in the mail industry, specifically the United States Postal Service (USPS). It can help with the fast and accurate sorting and delivery of mail and improve mail processing efficiency.

POSTNet barcodes feature the use of half-height and full-height bars to encode a zip code or postal code + 4-digit code, and usually the last two digits of an address or box number. This type of barcode begins and ends with a full-height bar to make it easier for scanners to read.

The POSTNET barcode was retired on January 28, 2013 and was replaced by the Intelligent Mail barcode.


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