What is the primary purpose of USPS tracking numbers?

The primary purpose of USPS tracking numbers is to allow customers to follow the status and location of their packages. Tracking numbers serve as unique identifiers attached to each shipment, enabling both the sender and recipient to monitor the package's journey from the point of origin to its final destination. This system enhances transparency and provides peace of mind, as customers can access real-time updates on where their package is, when it is out for delivery, and when it has been successfully delivered.

While shipping labels are essential for identifying and processing packages, they do not inherently provide tracking capabilities. Similarly, calculating postage rates and scheduling deliveries are separate functionalities within the USPS system and not directly linked to the role of tracking numbers. The tracking feature specifically addresses the need for customers to have visibility into the movement and status of their shipments, making it a critical component of the USPS service.