Area codes 978 and 351
Encyclopedia
Area codes 978 and 351 are Commonwealth
of Massachusetts
area codes serving the communities of Salem
, Haverhill
, Lawrence
, Lowell, Peabody
, Fitchburg
and Leominster
as well as northeastern Massachusetts. Area code 978 was created as a split
from Worcester
's 508
on September 1, 1997, it finished February 1, 1998. Area code 351 was created as an overlay
to 978 on May 2, 2001.
Commonwealth (United States)
Four of the constituent states of the United States officially designate themselves Commonwealths: Kentucky, Massachusetts, Pennsylvania and Virginia....
of Massachusetts
Massachusetts
The Commonwealth of Massachusetts is a state in the New England region of the northeastern United States of America. It is bordered by Rhode Island and Connecticut to the south, New York to the west, and Vermont and New Hampshire to the north; at its east lies the Atlantic Ocean. As of the 2010...
area codes serving the communities of Salem
Salem, Massachusetts
Salem is a city in Essex County, Massachusetts, United States. The population was 40,407 at the 2000 census. It and Lawrence are the county seats of Essex County...
, Haverhill
Haverhill, Massachusetts
Haverhill is a city in Essex County, Massachusetts, United States. The population was 60,879 at the 2010 census.Located on the Merrimack River, it began as a farming community that would evolve into an important industrial center, beginning with sawmills and gristmills run by water power. In the...
, Lawrence
Lawrence, Massachusetts
Lawrence is a city in Essex County, Massachusetts, United States on the Merrimack River. According to the 2010 U.S. Census, the city had a total population of 76,377. Surrounding communities include Methuen to the north, Andover to the southwest, and North Andover to the southeast. It and Salem are...
, Lowell, Peabody
Peabody, Massachusetts
Peabody is a city in Essex County, Massachusetts, United States. The population is about 53,000. Peabody is located in Boston's North Shore suburban area.- History :...
, Fitchburg
Fitchburg, Massachusetts
Fitchburg is the third largest city in Worcester County, Massachusetts, United States. The population was 40,318 at the 2010 census. Fitchburg is home to Fitchburg State University as well as 17 public and private elementary and high schools.- History :...
and Leominster
Leominster, Massachusetts
Leominster is a city in Worcester County, Massachusetts, United States. It is the second-largest city in Worcester County, with a population of 40,759 at the 2010 census. Leominster is located north of Worcester and west of Boston. Both Route 2 and Route 12 pass through Leominster. Interstate 190,...
as well as northeastern Massachusetts. Area code 978 was created as a split
Split plan
In telephony, a split plan is the practice of introducing a new area code by dividing an existing area code's territory and applying the new area code to one of the resulting divisions, replacing the existing area code within that section....
from Worcester
Worcester
The City of Worcester, commonly known as Worcester, , is a city and county town of Worcestershire in the West Midlands of England. Worcester is situated some southwest of Birmingham and north of Gloucester, and has an approximate population of 94,000 people. The River Severn runs through the...
's 508
Area code 508
Area codes 508 and 774 are NANPA area codes in the Commonwealth of Massachusetts. 508 was split from 617 on July 16, 1988 and finished January 1, 1989. Prior to the creation of 508, all of eastern & central Massachusetts used the 617 area code...
on September 1, 1997, it finished February 1, 1998. Area code 351 was created as an overlay
Overlay plan
In telephony, especially in North America, an overlay plan is the practice of introducing a new area code by applying it onto a geographic area that is already occupied by one or more existing area codes, resulting in two area codes serving the same area.- Methodology :Prior to the introduction of...
to 978 on May 2, 2001.