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North American area code 603 is the State of New Hampshire's sole area code serving the entire state. Area code 603 was created as one of the original area codes in October, 1947.
| State of New Hampshire Area Code: 603 |
|
North: 819 |
|
| West: 802 |
area code 603 |
East: 207 |
|
South: 351/978 |
|
| Commonwealth of Massachusetts Area Codes: 339, 351, 413, 508, 617, 774, 781, 857, 978 |
| State of Maine area code: 207 |
| Province of Quebec area codes: 418, 450, 514, 819 |
| State of Vermont Area Code: 802 |
[edit] See also
