Find any 339- phone number in Massachusetts
The 339 area code is a telephone numbering plan code that is used to designate a particular geographic area of coverage in the North American Numbering Plan. This area code covers all of Massachusetts. Its boundaries include the towns of Marblehead, Gloucester, Boston, Wareham, and many others. This code was introduced in 2001 as an overlay code for the 781 and 978 codes that previously served the same geographic region.
The North American Numbering Plan is a system that regulates how telephone numbers are distributed throughout North America. It determines which area codes belong to which geographic locations, as well as how many numbers each area code can issue. This system was put in place to make sure that all calls can be completed properly, and it also makes it easier to recognize which geographic area you are calling. Part of this system assigns the 339 code to the area of Massachusetts that it serves.