Massachusetts Area Codes
9 active area codes · Boston · Population around 4,921,072
Massachusetts has 9 active area codes, serving cities like Boston, Worcester, and Springfield. Some of them are overlays that share the same territory, so local calls there use all ten digits. Each code below links to its cities, carriers, timezone, and coverage map.
Massachusetts Area Code Map
What area codes does Massachusetts have?
- 339OverlayBostonEastern Time (ET) · 44 cities · 1,701,113
- 351OverlayLowellEastern Time (ET) · 45 cities · 808,693
- 413SpringfieldEastern Time (ET) · 41 cities · 577,534
- 508OverlayWorcesterEastern Time (ET) · 103 cities · 1,183,075
- 617OverlayBostonEastern Time (ET) · 12 cities · 1,324,115
- 774OverlayWorcesterEastern Time (ET) · 103 cities · 1,183,075
- 781OverlayBostonEastern Time (ET) · 44 cities · 1,701,113
- 857OverlayBostonEastern Time (ET) · 12 cities · 1,324,115
- 978OverlayLowellEastern Time (ET) · 45 cities · 808,693
Which cities are the largest in Massachusetts?
* Sources: Population – U.S. Census Bureau PEP, Vintage 2024 (SUB-IP-EST2024-POP). Area code assignments – NANPA CO Code data. See our data methodology.
Frequently Asked Questions
How many area codes does Massachusetts have?
Massachusetts has 9 active area codes: 339, 351, 413, 508, 617, 774, 781, 857, 978.
What is the main area code for Massachusetts?
The 339 area code is among the primary area codes for Massachusetts, serving Boston and surrounding communities.
What are the largest cities in Massachusetts?
The largest cities in Massachusetts include Boston, Worcester, Springfield, Cambridge, Lowell.
What is the total population of Massachusetts?
Massachusetts has an estimated total population of 4,921,072 based on US Census PEP 2024 data.