| POSTNET Barcode stands for POSTal Numeric Encoding Technique. It was developed by Postal Service for automatic mailpieces sorting.
POSTNET barcode always begins with a frame bar and ends with another frame bar. A correction character is required to be put in front of the right frame bar.
It is able to encode five-digit ZIP code, nine-digit ZIP and eleven-digit delivery point code.
Barcodesoft POSTNET barcode package contains 3 fonts: postnet, planet and envelope. | 
![POSTNET and Planet Barcode Font Package screenshot [Click to enlarge]](http://godmoon.com/S/POSTNET-and-Planet-Barcode-Font-Package.gif)
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