There are currently 30 healthy GPS satellites in orbit.
GPS
32
GPS signals are processed in the GPS unit and displayed, and they are also processed via three Global Position Satellites. All four units work together and process GPS signals (some to the satellites from the GPS, and some from the satellites to the GPS) to create an accurate position.
GPS satellites provide location and time information in all weather, anywhere on or near the Earth, where there is an unobstructed line of sight to four or more GPS satellites.
GPS
GPS
GPS uses satellites that were placed into orbit by the Department of Defense. The government set up the entire network on their own, and it is free to use as long as you already have a GPS device.
GPS satellites do not 'find' anything, that is not their purpose.
Geostationary satellites are the ones used for GPS satellites.
A minimum of 4 satellites is needed to obtain a full GPS signal. These satellites are used to triangulate your position accurately on Earth.
Currently 31 in both GPS and GLONASS (Russian navigation system, similar to GPS)
The United States Space Force is responsible for maintaining and operating the GPS satellites. They ensure that the satellite constellation is functioning correctly and providing accurate navigation and timing signals to users worldwide.
24 active with 6 spares.
32
GPS IIA-1 NAVSTAR 1 (Both GPS satellites)
Every GPS unit needs a minimum of four (4) satellites to compute a 3-dimensional position, and performs more accurate calculations with more satellites. I think my TomTom is capable of using 12 simultaneous satellites if it can see that many. Yours may be different.
Some telecommunication companies have paid and others were paid for by governments.