Number Checker. Phone tracer

This application will help to determine telephone numbers, both mobile and fixed telecom operators around the world by using codes.
Guide consists of two modules:
- Identification “Who called?” Just enter your phone number and you will receive information by the following numbers of telephone subscriber: country, state, region, area, city, town.
- The instruction "How to call?" It helps to find and display the plan of numbers as handy reference of codes for countries, cities and mobile operators worldwide.
Please note, this application can’t tell you who's calling, but it can help to find by telling where the call is from, providing that the number of subscriber is fixed and attached geographically or to the network provider.
Database is constantly updated and corrected, as it is located on a remote server.
The program requires an Internet connection. The application is free.