To find out who is calling you, you will need to use a Reverse Lookup service.
If you want to find out the country and city where the call originated, follow these instructions:
If you need more than just the country of origin, there are many reverse phone services to help you find out who called. Here are a few we recommend:
In the United States:
In the United Kingdom:
In other countries:
Unfortunately, there are not many resources for doing complete reverse phone searches in other international countries to find out the company or individual that called.