[linMcHlp]

Location services may be expected to determine the computing device IP addresses on both the local network and the wide area network . . . or attempt to get “close enough” to such IP addresses.

If you want privacy, then disable Location Servvices and remove the Map applications. (Will probably save some battery life.)

[KarlInOhio]

I bought a stand alone GPS receiver just so I didn't have to turn on my phone's location service every time I wanted to use a map in the car. I'll turn it on for a minute or two if I really need my location, but I don't like Google knowing where I am every minute of the day.

And I hate apps which won't run without it. That's just lazy programming to not allow the user a way to manually ever a location. I bought a remote read Bluetooth thermometer which needed location to be turned on to work. I sent it back and gave it a one star review because of it

[Montana_Sam]

Not entirely accurate because many apps are communicating with their “mother ship”, and sending location data to feed the advertising beast that pays the way. Many free apps including games pay their way by getting the cellphone’s location and selling it to the behemoth that is electronic advertising.
The Faraday bag is a better option than trying to manipulate the phone into total RF silence.