Which are the country codes?
When dialing internationally, you have to use several codes to be able to make the call. These codes are uses to recognize each phone call. Every country has its own specific two or three digits code, which is an international denomination of that respective country. You have to dial an area code first, then to use the country code and then to dial up the phone number. If you do not know a country’s code, you can check online lists or to call an operator.