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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 serves the state of Massachusetts. This area code was assigned on January 1st, 1947. On January 1st, 1947 it went into service. 617 is a General Purpose Code. 617 service area does overlap with 857 area codes. Dialing pattern for local calls within the same NPA (area code) is 10D.
Cities: Belmont, Boston, Brighton, Brookline, Cambridge, Charlestown, Chelsea, Dorchester, East Boston, Everett, Hyde Park, Jamaica Plain, Milton, Newton, Quincy, Roxbury, Somerville, South Boston, Watertown, Winthrop. Overlap with code: 617. Parent code: 617. Other Massachusetts codes: 339, 351, 413, 508, 774, 781, 978.
May 1, 2024 · The 617 Area Code Map above shows the geographic region it covers. It has a single overlay (857) that serves the same geographic area. Combined, this Area Code (and overlays), serves a population of 4,496,567. Area Code 617 has a single Timezone of Eastern (GMT -05:00).
3 days ago · 617 is an area code located in the state of Massachusetts, US. The largest city it serves is Boston. Location, time zone and map of the 617 area code
Regional Market Area: Metro Boston: Population (2020) 797936: Adjacent Area Codes: 339,781,857: Overlay Area Codes: 857
May 2, 2001 · 5/23/12. Area code 857 is located in Massachusetts and includes Boston. View the 857 area code map, major cities, location, timezone and more on TeraCodes.com.
