Analyzing Data Retention By Wireless Carriers
adeelarshad82 writes "How long does your cell phone carrier retain information about your calls, text messages, and data use? According to data gathered by the Department of Justice, it can be as little as a few days or up to seven years, depending on your provider. The data was made public after the American Civil Liberties Union filed a Freedom of Information Act request related to an investigation into cell phone location tracking by police."
As Stallman says, "Cellphones are Stalin's dream". Keep the phone off when not in use and use them as little as possible. I supposed that at some time in the near future we will be required to keep it on (some states such as The People's Republic of Massachusetts is considering mandating GPS trackers in cars).