Area codes 617 and 857 - Wikipedia
https://en.wikipedia.org:443/wiki/Area_codes_617_and_857
Area codes 617 and 857 are telephone area codes in the North American Numbering Plan (NANP) for the U.S. state of Massachusetts, serving the city of Boston and several surrounding communities such as Brookline, Cambridge, Newton and Quincy. Area code 617 is one of the original North American area codes created in October 1947, when it served th… See more
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