List of Massachusetts area codes

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) in the North American Numbering Plan (NANP), which are served by nine area codes,[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
Year
created
Parent
NPA
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, Lynn, Waltham, Weymouth
339 2001 781
508 1988 617 508/774 Southeastern Massachusetts: Brockton, Framingham, Hyannis, 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

References

  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. ^ Planning 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.