POSTNET stands for Postal Numeric
Encoding Technique. United States Postal Office
developed POSTNET to encode zip code information.
POSTNET provides assistance for refining speed and
delivery of mails.
Character set of Postnet Barcode
The character set
of PLANET barcode symbology is a combination of digits
(0-9) having a length of 12-14 digits long.
Structure of Postnet Barcode
symbology has following structure:
1. Start/Stop character in form of
2. Digits (0 to 9) of changeable
3. Check digit (calculated according
to modulo 10).
Each character is symbolized with five bars-three of
them are small and remaining three comprises of long
United States Postal Services use POSTNET to track zip
code information and recover speed and delivery of
Generate Postnet Barcodes through Barcode Generator.