"At least one company serves as a broker for real-time phone geolocation services reselling data they purchase from T-Mobile, AT&T and Sprint. For rock-bottom prices, property managers and bail bondsmen and bounty hunters can gain valuable data about an individual’s location based on their cell’s location. The supply chain is complex, but for as little as $4.95 a buyer can get the location of a cell phone given only its number, and for $12.95 they can score real-time updates."
Pardon my language, but that is f-cking scary. I don't have anything to hide, but that doesn't mean that I want someone tracking where I am at all times. I write this because you can be sure that it bounty hunters and/or bail bondsmen are buying this information, so are others.