Cell tracking is external to the phone. It’s done by the towers - they know signal strength, and by using known tables of that data, cell providers know pretty accurately where your phone is.

To block this you’d need a device that lacks any cellular technology whatsoever. Wifi only.

And that has the same issues, especially with companies like Comcast/Xfiniti using their cable modems to track all the devices around them, even if you don’t connect to them.