If you have stolen the phone, you can track it by the number using modern programs and services. Also, this feature can be useful to those who want to control the location of children.
First of all, you should choose a program that will help you track the phone. On the Internet there are various options, and even free. This program should be installed on the phone that is planning tracking. On the device there should be a GPS navigator or a GPS chip is installed - it is very small, almost imperceptible. It is the chip that will send information about the location of the phone by catching the signal using the satellite. And you can track information on your computer - for this you have to install a program. Usually such applications work with Google Maps cards. When the program is installed on the computer, you need to activate it. Note that a test message on activation, availability of use can be sent to the phone that you track. After that, you can observe the movement of the device. You should select the program with the telephone operating system (Android, Symbian, Windows Phone).Try to download programs from official sites, then you will be confident in their safety and reliability.