Area codes 508 and 774 are telephone area codes in the North American Numbering Plan (NANP) for the U.S. state of Massachusetts. The numbering plan area comprises 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.
Massachusetts was originally divided into two numbering plan areas, when AT&T created the North American Numbering Plan in 1947. Area code 617 was assigned to the eastern two-thirds of Massachusetts from roughly the western end of Worcester County to Boston, The Cape and Islands, and the South Coast, while the western part received area code 413.
On September 1, 1997, numbering plan area 508 was split, whereby area code 978 was assigned to the northern part of the service area.
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.
- NANPA area code map of Massachusetts
- Massachusetts Area Code Map, Mass. Department of Telecommunications and Cable
- List of exchanges from AreaCodeDownload.com, 508 Area Code
- List of exchanges from AreaCodeDownload.com, 774 Area Code
|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|