List of Massachusetts area codes

This is a list of area codes in Massachusetts:

Map of Massachusetts, USA

As of March 2010, Massachusetts is split into two main regional calling areas. Eastern Massachusetts is considered as area codes: 339, 351, 508, 617, 774, 781, 857, and 978. Western Massachusetts is considered as area code 413. Area codes 339, 351, 774, and 857 are used on mobile lines; none or few landlines use them. Cell phones also use 508, 617, and 781 frequently.