how to track usps international Tracking a USPS international shipment is easy with the USPS tracking system. To track a package, simply enter the tracking number on the USPS website or use the USPS mobile app. USPS provides real-time updates on the status of your package as it moves through the international postal network, including customs processing, transit, and delivery details. For international orders, you can also opt to receive notifications by email or text message to stay informed of your package’s progress.