Massachusetts area codes
9 area codes currently serve Massachusetts. The state's numbering history begins in 1947 with 413, 617. Most recent addition: 339, in service since 2001.
Coverage runs through 978 (Lowell), 617 (Boston), 781 (Waltham), 508 (Worcester), 413 (Springfield), 774 (Worcester), 857 (Boston), 339 (Lynn) and 1 further codes; prefix counts in the table approximate each code's numbering footprint.
4 overlay complexes operate in Massachusetts: 339/781, 351/978, 508/774, 617/857. Inside a complex the codes share territory and local calls take ten digits.
Every Massachusetts code keeps Eastern time.
Toll-free callers are a separate story: 800-family numbers carry no Massachusetts geography at all, so an 833 or 877 number is never "from" the state — it belongs to whichever business rents it, anywhere in the NANP.
A number in any of these codes was issued in Massachusetts, but portability means its owner may be anywhere today — the codes locate numbers, not people. To dig further, open a code's prefix or cities pages.
| Code | Major area | In service | Overlay complex | Prefixes |
|---|---|---|---|---|
| 339 | Lynn | 2001 | 339/781 | 103 |
| 351 | Acton | 2001 | 351/978 | 89 |
| 413 | Springfield | 1947 | — | 597 |
| 508 | Worcester | 1988 | 508/774 | 749 |
| 617 | Boston | 1947 | 617/857 | 768 |
| 774 | Worcester | 2001 | 508/774 | 517 |
| 781 | Waltham | 1997 | 339/781 | 767 |
| 857 | Boston | 2001 | 617/857 | 357 |
| 978 | Lowell | 1997 | 351/978 | 773 |
FAQ
How many area codes does Massachusetts have?
9 geographic area codes are currently in service: 339, 351, 413, 508, 617, 774, 781, 857, 978.
What was Massachusetts's first area code?
413, in service since 1947.
Will Massachusetts get a new area code soon?
Not soon. The earliest exhaust forecast in the state is 508 at 4Q 2045, so current codes have ample capacity.
Which time zone are Massachusetts numbers in?
All Massachusetts area codes are in the Eastern time zone.