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Massachusetts is currently using nine area codes. Massachusetts is utilizing four area code overlay plans, often called
overlay complexes.
Massachusetts originally had two area codes, 413 and 617, when the numbering system was established in 1947. Forty-one years later in 1988 Massachusetts had experienced sufficient
growth in population and telephone use to need an additional area code. To meet this increase in demand area code 617 was split in 1988 to form area code 508. It was nine years later in 1997 before the
demand for new numbers in Massachusetts required a second split of area code 617 to form area code 781. Area code 617 was then overlaid with area code 857 in 2001.
In 1997 area code 508 which had been
formed in 1988 by a split of area code 617, was itself split to form area code 978. In 2001 area code 774 was formed and utilized as an overlay of area code 508.
Changes and History of Massachusetts
Area Codes:
01/01/1947
Area code 413 was put into service. |
