List of Massachusetts area codes
Massachusetts is divided into five distinct numbering plan areas (NPAs), which are served by nine area codes in the North American Numbering Plan (NANP), organized as four overlay complexes and a single-area code NPA.

Eastern Massachusetts has area codes 339, 351, 508, 617, 774, 781, 857, and 978. Western Massachusetts has area code 413.

The numbering plan areas are organized into two local access and transport areas (LATAs): 126 comprises the western part, and 128 covers the central and eastern parts.

See also
 List of North American Numbering Plan area codes
 Original North American area codes

References

External links
 
 Detailed map of Massachusetts area codes (pdf)

 
Massachusetts
Area codes