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.
The numbering plan areas are organized into two local access and transport areas (LATAs): 126 comprises the western part, and 128 covers the central and eastern parts.
Areacode Yearcreated ParentNPA Overlay Numbering plan area 413 1947 – – Western Massachusetts: Amherst, Greenfield, Holyoke, North Adams, Pittsfield, Springfield 617 1947 – 617/857 Boston and surrounding communities such as Brookline, Cambridge, Newton, and Quincy. 857 2001 617 781 1997 617 339/781 Greater Boston: Burlington, Canton, Lynn, Scituate, Waltham, Weymouth 339 2001 781 508 1988 617 508/774 Southeastern Massachusetts: Brockton, Framingham, Fall River, Nantucket, New Bedford, Plymouth, Worcester 774 2001 508 978 1997 508 351/978 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
External links
Detailed map of Massachusetts area codes (pdf), Office of the Secretary of the Commonwealth of Massachusetts