Package Tracking is a service that allows customers to monitor the progress of their shipments as they move from the sender to the recipient. By using a unique tracking number provided by the shipping company, individuals can check the current location and estimated delivery date of their packages online or through mobile apps. This system enhances transparency and provides peace of mind, as customers can see when their packages are out for delivery or if there are any delays. Many major shipping companies, such as UPS, FedEx, and USPS, offer package tracking as a standard feature for their services.