Intelligent Mail® OneCode™ Services

IMb Tracing ™
Learn how to obtain mail tracing data through the use of the Intelligent Mail Barcode by reviewing the IMb Tracing User Guide. For more information on IMb Tracing,

please call the IMb Tracing Customer Help Desk at 800-238-3150, option 1 or visit https://mailtracking.usps.com.

OneCode ACS®
Learn how the process works, the features available, and mailer requirements to receive electronic address corrections using the Intelligent Mail barcode.
Downloadable OneCode ACS application and fulfillment access forms.

OneCode ACS Sample Brochure (PDF)

Contact Information: