> That's like saying a transistor radio needs to know where broadcast antennas are, which is obviously absurd. Cellphones are called cell phones because they d

> That's like saying a transistor radio needs to know where broadcast antennas are, which is obviously absurd. Cellphones are called cell phones because they divide the world into location-based cells which determine which antenna your phone talks to. At the very least, the telephone company knows which cell you are located in to communicate with you.