Massachusetts area codes: full list with cities and how to dial
Massachusetts has roughly 7 million residents, and its phone numbers are organized into 9 area codes under the North American Numbering Plan. Massachusetts is served by 9 active geographic area codes, anchored by 617 in the Boston area. Most Massachusetts regions use overlay area codes requiring ten-digit dialing. Every Massachusetts number is dialed as +1, then the three-digit area code, then a seven-digit local number. With Phonecall you can call any Massachusetts landline or mobile straight from your browser. There is no app to install, no SIM, and no subscription. You see the per-minute rate before you dial, billing is by the second, and your first call is free.
Call Massachusetts from your browserAll Massachusetts area codes
9 active geographic area codes in service across Massachusetts.
| Area code | Primary cities and region | Example number |
|---|---|---|
| 617 | Boston and inner suburbs: Cambridge, Brookline, Newton, Quincy (overlay of 617/857) | +1 (617) 555-0100 |
| 857 | Boston metro (overlay of 617) | +1 (857) 555-0100 |
| 508 | Southeastern and central Massachusetts: Worcester, Framingham, Cape Cod (overlay of 508/774) | +1 (508) 555-0100 |
| 774 | Southeastern and central Massachusetts (overlay of 508) | +1 (774) 555-0100 |
| 978 | Northeastern Massachusetts: Lowell, Lawrence, Haverhill (overlay of 978/351) | +1 (978) 555-0100 |
| 351 | Northeastern Massachusetts (overlay of 978) | +1 (351) 555-0100 |
| 781 | Greater Boston suburbs: Lynn, Waltham, Weymouth (overlay of 781/339) | +1 (781) 555-0100 |
| 339 | Greater Boston suburbs (overlay of 781) | +1 (339) 555-0100 |
| 413 | Western Massachusetts (Springfield, Pittsfield, Holyoke, Amherst) | +1 (413) 555-0100 |
Example numbers use the reserved 555-0100 range and are for illustration only.
How to call Massachusetts from abroad
Every Massachusetts phone number is part of the +1 North American calling zone. To reach one from outside the United States, dial three parts in order:
- 1. Your exit code, then +1 — the US country code.
- 2. The three-digit area code — for example 617 for the Boston area.
- 3. The seven-digit local number.
Example, full international format:
+1 (617) 555-0100
With Phonecall you skip the exit codes entirely. Enter the number in international format and we connect the call from your browser, billed by the second from $0.03/min, with no SIM, no app, and no monthly fee.
Why Massachusetts has multiple area codes
Most Massachusetts regions use overlay area codes requiring ten-digit dialing.
When a region runs low on available numbers, the phone system adds capacity in one of two ways. A split divides the old region geographically and gives part of it a brand-new area code. An overlay keeps the existing code and layers a second one on top of the same area, which is why a single city can have several area codes and why ten-digit dialing becomes the norm. Either way, the number you dial always stays the same length: +1, the area code, then seven digits.
9
active area codes
~7 million
residents (approx.)
Boston
largest city
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Massachusetts area codes: frequently asked questions
What is the main area code for Boston?
Boston, the largest city in Massachusetts, is primarily served by area code 617 (Boston and inner suburbs: Cambridge, Brookline, Newton, Quincy (overlay of 617/857)). Massachusetts has 9 area codes in total, listed in full above.
How do I dial a Massachusetts number from another country?
Dial your international exit code, then +1 (the US country code), then the three-digit Massachusetts area code, then the seven-digit local number. With Phonecall you just enter the number in international format and we connect the call from your browser, from $0.03/min.
How many area codes does Massachusetts have?
Massachusetts currently has 9 active geographic area codes in service. Most Massachusetts regions use overlay area codes requiring ten-digit dialing.