664

The 664 area code serves a unique and specific purpose within the North American Numbering Plan (NANP), distinct from the typical geographic area codes assigned within the United States and Canada. Assigned to Montserrat: The 664 area code is designated for Montserrat, a British Overseas Territory located in the Caribbean. This area code is not associated with a location within the continental United States or Canada but is part of the NANP, which includes several Caribbean countries and territories. International Dialing Considerations: Calls to the 664 area code from within the United States or Canada are treated as international calls. This means that international calling rates and procedures apply, despite Montserrat being part of the NANP. Callers should be aware of potential international charges and may need to dial "011" (the international access code) followed by "1" (the NANP country code), and then the 664 area code. Supporting Communication in Montserrat: Montserrat, though a small island, has its own distinct telecommunications needs. The 664 area code facilitates connectivity for the island's residents and businesses, as well as for tourists and international communication. The 664 area code represents Montserrat's integration into the North American telecommunications system, facilitating connectivity for this Caribbean territory with the rest of the NANP region.