GPS satellites are owned by the United States government. A few other countries are working on new systems of their own, but right now the U.S. system is the only one used widely around the world.
The U.S. Department of Defense (DOD) is responsible for GPS operations and management. The U.S. Coast Guard serves as the civilian interface to the DOD, communicating GPS status information to the public and accepting reports from the public regarding GPS problems or anomalies.
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