Area Code 978

Area Code 978 is in Massachusetts

Other Massachusetts Area Codes
339, 351, 413, 508, 617, 774, 781, 857, 978

Massachusetts Area Code Overlays
(781 and 339) - (978 and 351)
(508 and 774) - (617 and 857)


Area Code 978 History:

09/01/1997
Area code 978 was put into service. Area code 978 was created from a split of area code 508. In 2001 area code 978 was overlaid with area code 351.

Counties in Massachusetts within area code 978 include:

Essex County, Franklin County, Middlesex County, and Worcester County.

Massachusetts Area Code Map



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