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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 & southwest Greater Boston (such as the MetroWest region), as well as Fall River, New Bedford, Cape Cod, Martha's Vineyard, and Nantucket.
On September 1, 1997, area code 508 was split, with area code 978 being assigned to the northern part of that service area. Area code 774 is an overlay area code that was added to share the 508 service area, beginning on May 2, 2001 and continuing to the present day. Since then, 10 digit local dialing is mandatory[citation needed].
