IDD Codes and Country Codes

 

IDD (International Direct Dialing) codes and country codes are special access codes that are needed to make a phone call from one country to another. Below is a chart of some examples:

To make an international phone call, dial, in the following order:

1. the IDD code
2. the country code for the country you are calling
3. the area code (if applicable)
4. the telephone number

As noted in the chart, the United States and Canada have the same IDD and country code. When providing a U.S. telephone number in a document being sent to an international address, use a plus sign in front of the area code, instead of the IDD code, followed by 1.