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List of Massachusetts area codes

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Numbering plan areas and area codes since May 2001
September 1997[1] – May 2001[2]
July 1988[3] – September 1997[4][5]
October 1947 – July 1988[6]

Massachusetts is divided into five distinct numbering plan areas (NPAs), which are served by nine area codes in the North American Numbering Plan (NANP),[7] 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.[8] Western Massachusetts has area code 413.[8]

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.[9]

Area code Region
339/781 Canton, Hanson, Lincoln, Nahant, Plympton, Revere, Stoughton, Winchester and east-central Massachusetts
351/978 Ashby, Barre, Boxborough, Carlisle, Groveland, Rowley, Wendell, Wenham and northeastern Massachusetts
413 Becket, Cummington, Hancock, Monson, Montague, Savoy, Sheffield, Warren and western Massachusetts
508/774 Berkley, Dennis, Douglas, Easton, Edgartown, Oakham, Oxford, Upton and southeastern Massachusetts
617/857 Belmont, Brookline, Chelsea, Everett, Milton, Quincy, Watertown, Winthrop and close-in Boston suburbs

See also

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References

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  1. ^ Planning Letter: PL-104 -- Additional Changes to the Split of 508 & 617 NPAs (Massachusetts), 12-10-1997
  2. ^ Planning Letter: PL-234 -- PA 774 To Overlay NPA 508; NPA 857 To Overlay NPA 617; NPA 339 To Overlay NPA 781; and NPA 351 To Overlay NPA 978 (Massachusetts), 07-11-2000
  3. ^ Planning Letter: IL-89-10-049 -- NANP - REVISED NPA MAPS SHOWING NEW NPAS SCHEDULED TO BE INTRODUCED IN 1989 AND 1990, 10-19-1989
  4. ^ Planing Letter: PL-068 -- NANP-Split of 508 (Massachusetts) Numbering Plan Area (NPA), 06-16-1997
  5. ^ Planning Letter: PL-069 -- NANP-Split of 617 (Massachusetts) Numbering Plan Area (NPA), 06-16-1997
  6. ^ Planning Letter: IL-87-07-003 -- NANP - SPLIT OF THE 617 NUMBERING PLAN AREA, 07-02-1987
  7. ^ Staff, writer (March 28, 2001). "Verizon Reminds Eastern Massachusetts Customers New Area Codes Go into Effect April 2" (Press release). Verizon. Retrieved May 16, 2024. Just three years ago, two new area codes were created in Massachusetts by splitting existing area codes in half. The 781 area code was carved out of the 617 code and the 978 area code was carved out of the 508 area code. With the addition of the four new overlay codes, Massachusetts will have nine area codes.
  8. ^ a b Staff writer (2022). "Massachusetts Area Code Information". areacodehelp.com. Retrieved January 12, 2023.
  9. ^ "Northeast LATA Boundaries (Archived copy)" (PDF). Archived from the original (PDF) on 2016-04-09. Retrieved 2017-09-24.
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