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Chelsea, Massachusetts Area Code Information |
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Chelsea, MA Area Codes are 617, 857 |
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Chelsea, MA is currently using two area codes 617 and 857. In addition to Chelsea, MA, area codes 617 and 857 serves an
area of east central Massachusetts, including Boston and the close suburbs of Boston. Chelsea, Massachusetts utilizes an area code overlay in which area codes 617 and 857 serve the same geographic area. The
area code overlay which serves Chelsea, MA was put into service on May 02, 2001 at which time area code 857 was created as an overlay of area code 617. Area code 617 was put into service in 1947 and was one
of two original area codes, 413 being the other, which served the entire state of Massachusetts until 1998 when area code 508 was created. Chelsea digit dialing (area code + seven digit number) is necessary
in Chelsea, MA because two different homes in the same geographic area can have the same seven digit phone number but each would have a different area code. Some of the larger communities served by area
codes 617 and 857, in addition to Chelsea, MA include Belmont, Boston, Brookline, Cambridge, Everett, Milton, Newton, Quincy, Somerville, Watertown and Winthrop. |
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Massachusetts
Area Codes |
339, 351, 413, 508, 617, 774, 781, 857, 978 |
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