Country codes for island territories associated with mainland countries

Some island territories are politically linked to a mainland country but use distinct international dialing codes and number formats. Using the wrong country code, for example dialing France’s +33 instead of the territory-specific code, can cause outbound calls to fail in Aircall even if they work from a personal phone.

This article lists those territories, their correct country codes, and where applicable the fixed and mobile number formats. It also explains how to dial them properly in Aircall.

Important: When calling these territories from Aircall, you must use the correct international prefix and country code.

Dialing the mainland country code, for example +33 for France, will not connect calls to these destinations.

France and DOM-TOM territories

Several French overseas territories and departments do not use France's main country code +33.

French territories and country codes

• Guadeloupe: +590
• Martinique: +596
• Réunion: +262
• French Guiana: +594
• Saint Barthélemy: +590, shared with Guadeloupe
• Saint Martin (French part): +590, shared with Guadeloupe
• Saint Pierre and Miquelon: +508
• Mayotte: +262, shared with Réunion
• New Caledonia: +687
• Wallis and Futuna: +681
• French Polynesia: +689

DOM-TOM number formats

Below are the formats used in several French overseas departments and territories. These patterns can help you identify when a number is a DOM-TOM number that must be dialed with its own country code.

When making outbound calls to certain French numbers (mobile or landline), you may notice that calls can fail from Aircall but still be reachable from your personal phone. In these cases, it is possible you are calling a DOM-TOM number. When calling these numbers from Aircall, they must be dialed with the correct international prefix.

Important: If you are still facing issues calling these numbers, please contact Aircall Customer Support and share a Call ID or the exact number you tried to dial.

Include any error message you heard during the call. For information on how to collect the Call ID, see: Collecting Call Examples (UUID/ID).

Netherlands

Dutch territories in the Caribbean use separate dialing codes from the Netherlands (+31):

• Curaçao: +599
• Aruba: +297
• Sint Maarten (Dutch part): +1-721
• Bonaire, Sint Eustatius, and Saba (Caribbean Netherlands): +599, shared with Curaçao

Denmark

Denmark’s overseas territories each have their own country code:

• Greenland: +299
• Faroe Islands: +298

United Kingdom

Several British Overseas Territories do not use the UK's country code +44:

• Bermuda: +1-441
• Cayman Islands: +1-345
• British Virgin Islands: +1-284
• Anguilla: +1-264
• Montserrat: +1-664
• Turks and Caicos Islands: +1-649
• Falkland Islands: +500
• Gibraltar: +350

United States

U.S. territories in the Pacific and Caribbean use their own area codes under the +1 system:

• Puerto Rico: +1-787 / +1-939
• Guam: +1-671
• Northern Mariana Islands: +1-670
• American Samoa: +1-684

New Zealand

Although New Zealand uses +64, several associated territories use their own codes:

• Cook Islands: +682
• Niue: +683
• Tokelau: +690

How to use the proper country codes for island territories

To successfully place calls to these territories in Aircall or any other calling software, you must use the specific country code assigned to the territory. Dialing the mainland country code will not reach these destinations.

Examples

• To call Guadeloupe, dial +590, not France’s +33.
• To call Sint Maarten (Dutch part), dial +1-721, not the Netherlands’ +31.

Important: Always verify that you are using the correct country code for the destination.

Using the mainland country’s code instead of the territory’s code will result in a failed call.