Area codes 508 and 774

Area codes 508 and 774 are North American Numbering Plan (NANP) telephone area codes for the U.S. state of Massachusetts. This service area currently includes south-central and most of southeastern Massachusetts (LATA code 128). It includes Worcester, Outer south and southwest Greater Boston (such as the MetroWest region), as well as Fall River, New Bedford, Cape Cod, Martha's Vineyard, and Nantucket.

Map showing the region covered by area codes 508 and 774
Map of current Massachusetts area codes (since May 2001)
Map showing the 508 area code from its inception in July 1988 until it was split in September 1997
Map showing the original 617 area code before the formation of 508

Area code 508 was created on July 16, 1988, as a split from area code 617.[1] Prior to this split, 617 served the entire eastern two-thirds of Massachusetts from roughly the western end of Worcester County to Boston, The Cape and Islands, and the South Coast, while area code 413 (then as now) served all points west of the original 617 boundary. Permissive dialing of 617 and 508 continued until January 1, 1989.

On September 1, 1997, area code 508 was split, with area code 978 being assigned to the northern part of the service area. Area code 774 is an overlay code that was added to share the 508 service area, beginning on May 2, 2001. Since then, ten-digit local dialing is mandatory.

Some mobile telephone numbers assigned in the 1990s in communities in the former northern half of 508 (now the 978 area code) kept the area code after it split.

As of 2018, NPA 508/774 is projected to be exhausted by 2045.[2]

Regions and major cities

Area codes 508 and 774 include the following regions

Area codes 508 and 774 include the following major cities

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See also

References
  1. "NPA: 508". NANP Administration System. North American Numbering Plan Administration. Retrieved 25 August 2012.
  2. 2018 October NANPA Exhaust Projections
Massachusetts area codes: 339/781, 351/978, 413, 508/774, 617/857
North: 978/351
West: 413 area code 508/774 East: 781/339, Atlantic Ocean
South: 860, 401
Connecticut area codes: 203/475, 860/959
Rhode Island area codes: 401
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