A USPS tracking phone number is a toll-free line you use to get the status of your package. For instance, if you ship a package from New York to California, you can call the USPS tracking phone number to find out where your package is in transit.
USPS tracking phone numbers are important because they allow you to keep track of your packages and make sure they are delivered on time. They are also beneficial because they can help you locate lost or stolen packages. Historically, USPS tracking phone numbers were only available through the mail, but now they can be accessed online or through the USPS mobile app.