EXIT CODE
This is the code you need to dial OUT from a country.
It is also referred to as the IDD code (International Direct Dialing) or ISD code (International Subscriber Dialing)
COUNTRY CODE
This is the code you need to dial IN to a country.
Each country is assigned a unique country code.
AREA CODE
This is the code for a part of the country.
It is usually a general area or a city.
Some countries are not large enough to warrant their own code, so will have the country code 1
and use the area code to define the country.
LOCAL NUMBER
This is the local number you would like to call.