Area code 340 is the telephone area code in the North American Numbering Plan (NANP) for the U.S. Virgin Islands. Area code 340 was created by split from the Caribbean numbering plan area with area code 809 in 1998.
A permissive dialing period was conducted from 1 June 1997 to 30 June 1998.
Calls within the U.S. Virgin Islands are dialed with the seven digits of the telephone number. Calls from other NANP countries or territories to the U.S. Virgin Islands, require ten-digit dialing after dialing the trunk code 1.
See also
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| North: 441 | ||
| West: 787/939 | Area code 340 | East: 284 |
| South: Caribbean Sea | ||
| Bermuda area codes: 441 | ||
| British Virgin Islands area codes: 284 | ||
| Puerto Rico area codes: 787/939 | ||
18°21′N 64°56′W / 18.350°N 64.933°W
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