Massachusetts Area Codes
Directory of all 9 telephone area codes assigned to Massachusetts.
Massachusetts phone numbers are served by 9 area codes operating in the Eastern timezone.Because an overlay is active, 10-digit dialing is mandatory across much of the state. No area codes in Massachusetts are currently flagged as high-risk scams.
Most populated prefix: area code 617 (Massachusetts)
All Area Codes in Massachusetts
Area Code 339
Lynn, Malden, Waltham, Revere, Medford, Weymouth Town, Woburn, Braintree Town, Randolph Town, Melrose
Area Code 351
Lowell, Lawrence, Haverhill, Peabody, Methuen, Salem, Leominster, Beverly, Fitchburg, Gloucester
Area Code 413
Springfield, Chicopee, Pittsfield, Amherst Town, Westfield, Holyoke, Northampton, West Springfield Town, Agawam Town, Greenfield
Area Code 508
Worcester, Brockton, New Bedford, Fall River, Framingham, Taunton, Barnstable Town, Attleboro, Marlborough, Franklin Town
Area Code 617
Boston, Cambridge, Quincy, Newton, Somerville, Everett, Chelsea, Watertown, Winthrop Town
Area Code 774
Worcester, Brockton, New Bedford, Fall River, Framingham, Taunton, Barnstable Town, Attleboro, Marlborough, Franklin Town
Area Code 781
Lynn, Malden, Waltham, Revere, Medford, Weymouth Town, Woburn, Braintree Town, Randolph Town, Melrose
Area Code 857
Boston, Cambridge, Quincy, Newton, Somerville, Everett, Chelsea, Watertown, Winthrop Town
Area Code 978
Lowell, Lawrence, Haverhill, Peabody, Methuen, Salem, Leominster, Beverly, Fitchburg, Gloucester
Major Cities Served by Massachusetts Area Codes
The most populous urban centers and census places covered by Massachusetts's area codes, ranked by population.
Massachusetts Area Code FAQs
Quick answers to common questions about Massachusetts telephone area codes.
How many area codes does Massachusetts have?
Massachusetts has 9 area codes: 339, 351, 413, 508, 617, 774, 781, 857, 978.
What timezone do Massachusetts area codes use?
Massachusetts area codes operate in the Eastern timezone.
What is the most populated area code in Massachusetts?
Area code 617 is the most populous prefix in Massachusetts based on covered city population.
Which Massachusetts area codes share an overlay?
339 and 781, 351 and 978, 508 and 774, 617 and 857. Overlay codes serve the same area, which is why 10-digit dialing is required.
Are there scam area codes in Massachusetts?
Massachusetts has no area codes currently flagged as high-risk scams.
About Massachusetts Area Codes & Phone Dialing Rules
When placing calls within Massachusetts, ten-digit dialing (area code + 7-digit telephone number) is required in overlay regions where multiple area codes serve the same geographic boundaries.