The United States Postal Service (UPSP) is an independent agency of the US federal government's executive department that is responsible for providing postal service across the United States, including its insular areas and associated states. It's one of the few federal agencies that the US Constitution explicitly authorizes. The UPSP employs 516,636 career employees and 136,531 non-career employees as of 2021. The UPSP is the only postal agency that delivers to every address in the country, including 160 million homes, businesses, and Post Office Boxes. The Postal Service does not receive any tax revenue to cover operational costs and instead relies on the sale of postage, products, and services to stay afloat. The Postal Service, which has more than 34,000 retail locations and one of the most frequently visited websites in the federal government, usps.com, has an annual operating revenue of more than $71 billion and delivers 48 percent of the world's mail, has an annual operating revenue of more than $71 billion. They are one of the country's largest employers, with around 630,000 employees. They also have one of the largest computer networks in the world. The US Postal Service has a long and illustrious history as the government's institution for ensuring safe and secure communication among and between the government and the American people. Many people are familiar with their story, which began in 1775 with the Second Continental Congress and Benjamin Franklin and ended in 1787 with the United States Postal Clause. Congress was given the authority to create post offices and post roads under the Constitution. The Post Office Act of 1792, which established the Postal Service as a permanent fixture of the Federal Government, allowed Congress to utilize such rights. The Act contains provisions to assist press freedom, personal privacy, and the expansion of the nation's physical infrastructure, all of which are critical to the country's progress and success. The United States Postal Service has the most extensive physical and logistical infrastructure of any non-military government agency, serving as an essential foundation for an ever-changing and evolving countrywide communication network. UPSP also plays an important role in promoting digital commerce by leveraging its skills in scheduling and high-volume sorting.
Parcel Tracker provides tracking both for international postal services (delivery services run by countries) and for couriers (private companies such as UPS and FedEx).