Method for locating a cell phone or PDA, e.g., arranged in or on a movable asset, includes obtaining information at the cell phone or PDA relating to reception of signals, transmitting the information from the cell phone or PDA to a remote facility and determining the location of the cell phone or PDA from the information at the remote facility. The cell phone or PDA may obtain DGPS signals and transmit them to the remote facility. In this manner, the location of the cell phone and the asset in or on which it is arranged, or the person carrying the cell phone can be determined at the remote location.