Does FamilyMap work on all AT&T phones?
Yes. AT&T FamilyMap uses a number of techniques to determine a phone’s location. While any post-paid AT&T phone can be located with AT&T Family Map, AT&T phones that have A-GPS (Assisted GPS) return the most accurate locations when they have a clear line of sight to GPS satellites. For example, the phone is outside or is in a car near a window. For phones where A-GPS is not available, FamilyMap uses cell tower information to provide the most accurate location possible, which is usually within a few hundred yards to a few miles of the phone’s actual location. This includes iPhones, non A-GPS phones, as well as A-GPS phones that are not in a clear line of sight to GPS satellites. Note: Prepaid and Go Phone services are not supported. For a list of A-GPS phones visit www.wireless.att.com.
