617, 857, 781, 339, 508, 774
These are the telephone area codes for Boston and surrounding regions in Eastern Massachusetts.
How to Call Boston from Overseas
- Dial your country's exit code (International Access Code)
- Dial 1 (USA country code)
- Dial the area code (617, 857, 781, 339, 508, or 774)
- Dial the 7-digit local phone number
Example: Calling Boston from the UK
00 1 617 555 1234
Where:
00 = UK exit code
1 = USA country code
617 = Boston area code
555 1234 = Local Boston phone number
Quick Facts
617
Original Code
+1
Country Code
10-digit
Dialing Format
011
US Exit Code
Boston Area Code Coverage
These area codes cover Greater Boston and Eastern Massachusetts:
617 - Boston Proper
Boston, Cambridge, Brookline
857 - Boston Overlay
Overlay for 617 area
781 - North Shore
North of Boston suburbs
339 - North Shore Overlay
Overlay for 781 area
508 - Southeast Mass
Worcester, Cape Cod area
774 - Southeast Overlay
Overlay for 508 area
Major US Area Codes
Common Exit Codes for Calling USA
When calling Boston from these countries, use these exit codes:
United Kingdom
00
Australia
0011
European Union
00
Japan
010
China
00
Canada
011