To place phone calls to another country, there are certain prefixes that must be used in order to make the call. Listed in a table below are the Country Codes and International Direct Dialing prefixes for all countries around the world, which are necessary to make any international call.
One wrinkle is that if you are calling to countries or territories that use the same country code as the country you are calling from, you will not need to use the IDD prefix. For instance, the United States, Canada, and many Caribbean Islands share the country code 1, and calls made between these areas are regular long-distance calls and not international calls. Another problem is that the IDD prefixes are still in a state of evolution, so there may be changes that are not reflected in this list.
IDD CC 011 - 237 - area code - phone number
