Each cellphone has a chip which makes it possible to detect where the cellular is located by satellite
The thing is that now a new site allows, while entering the number of the telephone, to locate it.
Test this site before it becomes a paid service.

You can see where a person is; such as your wife, husband or friend in real time anywhere in the world 24/7. It is really impressive!

Here http://www.trackapartner.com/