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Intelligent Mail® Barcode Decoder

The Intelligent Mail® barcode is a height-modulated barcode designed for use in high speed, automated, mail sortation machines that allow both the Planet Code® and POSTNET barcode information to be combined into a single barcode with expanded tracking capability.

Utilizing four different states of "bars" in the Intelligent Mail® barcode allows more information to be provided in this single barcode. The four possible states are:

  • Tracker (neither ascender nor descender)
  • Full (both ascender and descender)
  • Ascender only
  • Descender only
Click here to use the tool to decode or encode tracking and delivery point ZIP Code™ Information.

Download Intelligent Mail® barcode software and fonts.

Contact Information:
Phone: 877-640-0724, option 2
Email: onecodesolution@usps.gov
Page updated: 05/19/2011

Important Updates

Standard Mail DSCF Load Leveling Final Rule Published in the Federal Register

The Postal Service has released its Federal Register final rule revising the service standards for Standard Mail that is eligible for Destination Sectional Center Facility (DSCF) rates. These changes will allow a more balanced distribution of DSCF Standard Mail across delivery days. With its new rules, USPS is extending delivery expectation to four days for mail entered on Friday and Saturday. National Implementation began April 10, 2014.


January 2014 Price Change Fact Sheets


Getting Started with Full-Service Intelligent Mail


PostalOne! Contingency Plan

For mailers unable to submit electronic information, click here for the PostalOne! Contingency Plan.











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