<P> Member countries of the North American Numbering Plan (NANP) are assigned three - digit area codes under the common country prefix 1, shown in the format + 1 XXX . </P> <P> The North American Numbering Plan includes: </P> <Ul> <Li> + 1--Canada </Li> <Li> + 1--United States, including United States territories: <Ul> <Li> + 1 340--United States Virgin Islands </Li> <Li> + 1 670--Northern Mariana Islands </Li> <Li> + 1 671--Guam </Li> <Li> + 1 684--American Samoa </Li> <Li> + 1 787 / 939--Puerto Rico </Li> </Ul> </Li> <Li> + 1 Many, but not all, Caribbean nations and some Caribbean Dutch and British Overseas Territories: <Ul> <Li> + 1 242--Bahamas </Li> <Li> + 1 246--Barbados </Li> <Li> + 1 264--Anguilla </Li> <Li> + 1 268--Antigua and Barbuda </Li> <Li> + 1 284--British Virgin Islands </Li> <Li> + 1 345--Cayman Islands </Li> <Li> + 1 441--Bermuda </Li> <Li> + 1 473--Grenada </Li> <Li> + 1 649--Turks and Caicos Islands </Li> <Li> + 1 664--Montserrat </Li> <Li> + 1 721--Sint Maarten </Li> <Li> + 1 758--Saint Lucia </Li> <Li> + 1 767--Dominica </Li> <Li> + 1 784--Saint Vincent and the Grenadines </Li> <Li> + 1 809 / 829 / 849--Dominican Republic </Li> <Li> + 1 868--Trinidad and Tobago </Li> <Li> + 1 869--Saint Kitts and Nevis </Li> <Li> + 1 876--Jamaica </Li> </Ul> </Li> </Ul> <Li> + 1--Canada </Li>

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