The French numbering plan is an extension of France’s continental phone system to include overseas departments and territories.
Through the French numbering plan, phone calls made between continental France and French overseas departments and territories use the domestic French dialing sequence.
Martinique, French Guiana, Guadeloupe, Saint-Barthélemy, Saint-Martin, Reunion, Mayotte, and Saint-Pierre and Miquelon are part of the French numbering plan. Territories in the Pacific (French Polynesia, New Caledonia, and Wallis and Futuna) are not.
How to call between France and overseas departments and territories within the French Numbering Plan
French Department and Territories (except for those in the Pacific) can be dialed using the same call sequence as a domestic French phone call.
|0||one digit||two digits||six digits|
|French trunk code||area code||designates the department or territory in the area code||local phone number|
St. Pierre and Miquelon phone numbers can also be dialed within the French numbering plan using ‘0 508’ as the starting prefix to the phone number.
Local phone numbers, however, are listed without the leading ‘508’. St. Pierre and Miquelon phone number have only six digits.
Calls to overseas departments and territories from outside the French Numbering Plan can be dialed using the regular international call sequence.
|exit code||country code||remaining digits|
|exit code of the country the call is dialed from||destination country code||local phone number|
Remove any leading ‘0’ from the local phone number when using the international call sequence.
Most overseas departments and territories have duplicate country codes and starting prefixes
Local phone numbers may appear to have duplicate phone numbers to international callers. For example, Martinique (country code +596) landline phone numbers all start with ‘596’, and Reunion (country code +262) landline phone numbers all start with ‘262’.
Callers to Martinique from the United States need to dial ‘011’ for the US exit code, then ‘596’ for Martinique’s country code, then ‘596’ (again) for the start of local landline phone numbers, then the rest of the local phone number.
The duplicate ‘596’ may feel inaccurate to some callers. However, it is the right way of calling.
Call using the local country code or France’s (+33) country code
Calls to French overseas departments and territories using the French numbering plan are dialed using their local country code or using France’s country code (+33).
The numbers are interchangeable.
Departments and Territories without duplicate country codes and starting prefixes
Mayotte phone numbers would not appear to have duplicate starting prefixes as Mayotte shares Reunion’s country code.
Saint-Pierre and Miquelon phone numbers do not appear with duplicate starting prefixes as the local phone number is only six digits.
The exit code for France and all French departments and overseas territories is ’00’.
|exit code||three digits||local number|
|exit code of the country the call is dialed from||country code of the territory||local phone number in the territory|
Today, they need to be dialed using the regular international dialing sequence as they have their country codes.