We're on the 4th or 5th generation of mobile network standards. Each generation gets more optimized to allow for more devices, more data, more usage. You simp

We're on the 4th or 5th generation of mobile network standards. Each generation gets more optimized to allow for more devices, more data, more usage. You simply cannot run a worldwide mobile network with a few billion phones unless you have a general idea of where every single phone is. So that is what happens. All the phones are constantly telling the network "if you need to contact me, please use these towers that I can currently see". That's how it has to work.