Massachusetts area codes
Massachusetts has 9 area codes: 339, 351, 413, 508, 617, 774, 781, 857, 978.
- 339 — Boston
- 351 — Boston
- 413 — Springfield
- 508 — Boston
- 617 — Boston
- 774 — Boston
- 781 — Boston
- 857 — Boston
- 978 — Boston
Area codes by city in Massachusetts
Sourced from the official NANPA (North American Numbering Plan Administrator) numbering database, current as of June 20, 2026. Refreshed monthly.