9 area codes assigned to Massachusetts · Eastern Time
339
Massachusetts
Eastern Time
351
Massachusetts
Eastern Time
413
Massachusetts
Eastern Time
508
Massachusetts
Eastern Time
617
Massachusetts
Eastern Time
774
Massachusetts
Eastern Time
781
Massachusetts
Eastern Time
857
Massachusetts
Eastern Time
978
Massachusetts
Eastern Time
Massachusetts is served by 9 area codes in the North American Numbering Plan (NANP): 339, 351, 413, 508, 617, 774, 781, 857, 978. All Massachusetts numbers are in the Eastern Time zone. Click any area code above to see the cities and rate centers it covers, formatted tel: link examples, and to search for available phone numbers.