track a package us postal service is easy using the USPS Track & Confirm tool. Once a package is shipped, customers are provided with a unique tracking number, which can be entered on the USPS website to track the package’s journey. USPS provides real-time updates on the package’s location, including when it departs and arrives at various facilities, and an estimated delivery date. The service also offers notifications for any delays, making it convenient for customers to stay informed about their package status.