at delivery and ``USPS TRACKING #” (or “USPS TRACKING NUMBER”) for all
If you cannot print the barcode, fill in the sequence numbers and check digit (the digits that follow the
The U.S. Postal Service® is committed to providing the mailing industry with
The IMb consists of a 20-digit tracking code field (Barcode Identifier, Service Type Identifier, Mailer Identifier, and Serial. Number) and a Routing Code (ZIP ...
If the Mailer ID is six digits long, then the Sequence Number is nine digits long, ...
The Reference Number will show in the "USPS Tracking and
a tracking number, will uniquely identify all Confirmation Services mail pieces.
In the United States, some of the carriers using tracking numbers include UPS, FedEx, and the United States Postal Service.
For domestic Priority Express Mail users, you will notice that the IMpb tracking number looks identical to the Delivery Confirmation barcode seen on other mail ...
ZIP code and tracking information included in previously used postal barcode