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. Some mobile phone numbers from the 1990s assigned to communities in the former northern half on 508 (now the 978 area code) kept the 508 area code just on those mobile lines after it split.