If I Change the Tracking Code, Will I Lose Old Data With Google Analytics?. Google Analytics tracking codes are connected to the specific Analytics account under which they are stored. This poses ...

AT&T Mobility says it's no longer attaching hidden Internet tracking codes to data transmitted from its smartphones.

AT&T Mobility said it would no longer add tracking codes to its subscribers' devices. That practice made it nearly impossible to keep a user's identity private on the Internet.