Your USPS tracking number looks like 9400 1000 0000 0000 0000 ... of boxes and other larger parcels you have moving through the postal system. Tracking numbers aren't available for regular mail ...

The U.S. Postal Inspection Service is reminding ... information should send the package's tracking number to 28777 in addition to one of the USPS' keywords. Keywords tell the USPS what information ...

By the time a package arrives at your doorstep, it has likely traveled thousands of miles, passed through several sorting ...