617 Area Code
Massachusetts, USA
Local time now · Eastern Time
3:44 AM
Area code 617 is in Massachusetts, USA, serving Boston, Cambridge, Quincy and Newton. It uses Eastern Time — the time there now is 3:44 AM. 857 is an overlay for the same area, so local calls need 10-digit dialing. In service since 1947.
| Area code | 617 |
|---|---|
| Location | Massachusetts, USA |
| Major cities | Boston, Cambridge, Quincy, Newton, Somerville, Brookline, Watertown |
| Time zone | Eastern Time |
| Overlay codes | 857 |
| In service since | 1947 |
| Dialing | 1+10 digit permissible at service provider discretion |
Other area codes in Massachusetts
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Frequently asked questions
Where is area code 617?
Massachusetts, USA — including Boston, Cambridge, Quincy, Newton and Somerville.
What time zone is area code 617?
Eastern Time.
How do I call a 617 number from abroad?
Dial your international access code, then 1 (the country code), then 617 and the 7-digit number — for example +1 617 555 0100. From the UK or India dial 00 1 617 …; from Bangladesh 00 1 617 … .
Is a call from 617 a scam?
Not by itself — 617 is an ordinary geographic area code in Massachusetts. Numbers can be spoofed, so be careful with unexpected calls asking for money or personal details.
Sources: North American Numbering Plan Administrator (NANPA) NPA database (10/25/2026); major cities from Wikidata (CC0). An area code shows where a number was first assigned — with number portability and mobile phones, the caller may be anywhere.