Area code 978 was created as a split from

area code 508 Area codes 508 and 774 are telephone area codes in the North American Numbering Plan (NANP) for the U.S. state of Massachusetts. The numbering plan area comprises south-central and most of southeastern Massachusetts ( LATA code 128). It includ ...

on September 1, 1997, and covers north central and most of northeastern

Massachusetts Massachusetts (Massachusett language, Massachusett: ''Muhsachuweesut assachusett writing systems, məhswatʃəwiːsət'' English: , ), officially the Commonwealth of Massachusetts, is the most populous U.S. state, state in the New England ...

( LATA code 128). Use of 978 became mandatory on February 1, 1998. Prior to when this area was served by 508 (July 1988), it was served only by the 617 area code, along with the rest of the eastern two-thirds of the state. 351 has been sharing the service area since May 2, 2001. Since then, 10 digit local dialing is mandatory. Some mobile phone numbers from the 1990s assigned to rate centers in 978 and 351 kept the 508 area code just on those mobile lines after it was split.

Cities/towns

* Acton * Ashburnham *

Ashby Ashby may refer to: People * Ashby (surname) * Alan la Zouche, 1st Baron la Zouche of Ashby (1267–1314), governor of Rockingham Castle and steward of Rockingham Forest, England * Walter Ashby Plecker (1861–1947), American physician and publ ...

Andover Andover may refer to: Places Australia *Andover, Tasmania Canada * Andover Parish, New Brunswick * Perth-Andover, New Brunswick United Kingdom * Andover, Hampshire, England ** RAF Andover, a former Royal Air Force station United States * And ...

Amesbury Amesbury () is a town and civil parish in Wiltshire, England. It is known for the prehistoric monument of Stonehenge which is within the parish. The town is claimed to be the oldest occupied settlement in Great Britain, having been first sett ...

* Ayer *

Berlin Berlin is Capital of Germany, the capital and largest city of Germany, both by area and List of cities in Germany by population, by population. Its more than 3.85 million inhabitants make it the European Union's List of cities in the European U ...

* Beverly * Billerica *

Bolton Bolton (, locally ) is a large town in Greater Manchester in North West England, formerly a part of Lancashire. A former mill town, Bolton has been a production centre for textiles since Flemish weavers settled in the area in the 14th ce ...

* Boxborough * Burlington *

Carlisle Carlisle ( , ; from xcb, Caer Luel) is a city that lies within the Northern English county of Cumbria, south of the Scottish border at the confluence of the rivers Eden, Caldew and Petteril. It is the administrative centre of the City ...

Chelmsford Chelmsford () is a city in the City of Chelmsford district in the county of Essex, England. It is the county town of Essex and one of three cities in the county, along with Southend-on-Sea and Colchester. It is located north-east of Lond ...

* Clinton * Concord * Danvers *

Dracut Dracut is a town in Middlesex County. At the 2020 census, the town's population was 32,617, making it the second most populous town in Massachusetts with an open town meeting system of governance. The town covers a total area of 21.36 square ...

Dunstable Dunstable ( ) is a market town and civil parish in Bedfordshire, England, east of the Chiltern Hills, north of London. There are several steep chalk escarpments, most noticeable when approaching Dunstable from the north. Dunstable is the ...

* Fitchburg *

Gardner Gardner may refer to: Name *Gardner (given name) *Gardner (surname) Places United States *Gardner, Colorado * Gardner, Illinois *Gardner, Kansas *Gardner, Massachusetts *Gardner, North Dakota *Gardner, Tennessee * Gardner, Wisconsin * Glen Gardn ...

* Georgetown *

Gloucester Gloucester ( ) is a cathedral city and the county town of Gloucestershire in the South West of England. Gloucester lies on the River Severn, between the Cotswolds to the east and the Forest of Dean to the west, east of Monmouth and east of t ...

* Groton * Groveland * Harvard * Haverhill * Hudson *

Ipswich Ipswich () is a port town and borough in Suffolk, England, of which it is the county town. The town is located in East Anglia about away from the mouth of the River Orwell and the North Sea. Ipswich is both on the Great Eastern Main Line r ...

Lancaster Lancaster may refer to: Lands and titles *The County Palatine of Lancaster, a synonym for Lancashire *Duchy of Lancaster, one of only two British royal duchies *Duke of Lancaster *Earl of Lancaster *House of Lancaster, a British royal dynasty ...

* Lawrence *

Leominster Leominster ( ) is a market town in Herefordshire, England, at the confluence of the River Lugg and its tributary the River Kenwater. The town is north of Hereford and south of Ludlow in Shropshire. With a population of 11,700, Leominster is t ...

* Littleton * Lowell * Maynard *

Methuen Methuen may refer to: *Methuen (surname) *Methuen, Massachusetts, a U.S. city **Methuen High School **Methuen Mall *Baron Methuen, a British title of nobility *Methuen Cove, South Orkney Islands *Methuen Publishing, Methuen & Co. Ltd., a British p ...

* Middleton *

Newburyport Newburyport is a coastal city in Essex County, Massachusetts, United States, northeast of Boston. The population was 18,289 at the 2020 census. A historic seaport with vibrant tourism industry, Newburyport includes part of Plum Island. The mo ...

* North Reading * Peabody * Pepperell *

Princeton Princeton University is a private research university in Princeton, New Jersey. Founded in 1746 in Elizabeth as the College of New Jersey, Princeton is the fourth-oldest institution of higher education in the United States and one of the ni ...

* Rowley * Salem *

Salisbury Salisbury ( ) is a cathedral city in Wiltshire, England with a population of 41,820, at the confluence of the rivers Avon, Nadder and Bourne. The city is approximately from Southampton and from Bath. Salisbury is in the southeast of Wil ...

* Shirley *

Sterling Sterling may refer to: Common meanings * Sterling silver, a grade of silver * Sterling (currency), the currency of the United Kingdom ** Pound sterling, the primary unit of that currency Places United Kingdom * Stirling, a Scottish city w ...

* Stow * Still River * Sudbury *

Tewksbury Tewksbury may refer to: Places *Tewksbury, Massachusetts, USA *Tewksbury Township, New Jersey, USA *Tewksbury Heights, Contra Costa County, California, USA *Tewkesbury, Gloucestershire, England **Tewkesbury (UK Parliament constituency) **Borough of ...

* Tyngsboro * Westford *

Westminster Westminster is an area of Central London, part of the wider City of Westminster. The area, which extends from the River Thames to Oxford Street, has many visitor attractions and historic landmarks, including the Palace of Westminster, Buck ...

* Wilmington * Winchendon

Regions

* North Central Massachusetts * Northeastern Massachusetts

References

External links

List of exchanges from Area-Codes.com, 978 Area Code

List of exchanges from Area-Codes.com, 351 Area Code

Massachusetts Area Code Map
Mass. Department of Telecommunications and Cable {{DEFAULTSORT:Area Codes 978 And 351 Telecommunications-related introductions in 1997 Telecommunications-related introductions in 2001 978 978

Cities/towns

Regions

See also

References

External links