300px|thumb|Numbering plan areas and area codes since May 2001

250px|thumb|September 1997 – May 2001

250px|thumb|July 1988 – September 1997

250px|thumb|October 1947 – July 1988

Massachusetts is divided into five distinct numbering plan areas (NPAs) in the North American Numbering Plan (NANP), which are served by nine area codes, organized as four overlay complexes and a single-area code NPA.

Eastern Massachusetts has area codes 339, 351, 508, 617, 774, 781, 857, and 978. Western Massachusetts has area code 413.

{| class="wikitable sortable"

|-

! Area<br>code || Year<br>created || Parent<br>NPA || Overlay || class="unsortable" |Numbering plan area

|-

| 413 || 1947 || – || – || Western Massachusetts: Amherst, Greenfield, Holyoke, North Adams, Pittsfield, Springfield

|-

| 617 || 1947 || – || rowspan=2 | 617/857 || rowspan=2 | Boston and surrounding communities such as Brookline, Cambridge, Newton, and Quincy.

|-

| 857 || 2001 || 617

|-

| 781 || 1997 || 617 || rowspan=2 | 339/781 || rowspan=2 | Greater Boston: Burlington, Canton, Lynn, Scituate, Waltham, Weymouth

|-

| 339 || 2001 || 781

|-

| 508 || 1988 || 617 || rowspan=2 | 508/774 || rowspan=2 | Southeastern Massachusetts: Brockton, Framingham, Fall River, Nantucket, New Bedford, Plymouth, Worcester

|-

| 774 || 2001 || 508

|-

| 978 || 1997 || 508 || rowspan=2 | 351/978 || rowspan=2 | Northeastern Massachusetts: Athol, Concord, Fitchburg, Gloucester, Haverhill, Lowell, Salem

|-

| 351 || 2001 || 978

|-

|}

See also

  • List of North American Numbering Plan area codes
  • Original North American area codes

References

  • Detailed map of Massachusetts area codes (pdf), Office of the Secretary of the Commonwealth of Massachusetts