| District of Massachusetts area codes: 978 | |
|---|---|
| Country | United States |
| State/Province | Massachusetts |
| Major City | Boston |
| Time Zone | Eastern |
| Prefix | County | Primary City | Company |
|---|---|---|---|
| 978-347 | Essex | Hamilton, MA | Mci Worldcom Communications |
| 978-348 | Worcester | Fitchburg, MA | Verizon New England Inc. |
| 978-349 | Middlesex | Lowell, MA | Broadview Networks |
| 978-352 | Essex | Georgetown, MA | Verizon New England Inc. |
| 978-353 | Worcester | Fitchburg, MA | Verizon New England Inc. |
| 978-354 | Essex | Salem, MA | Verizon New England Inc. |
| 978-355 | Worcester | Barre, MA | Verizon New England Inc. |
| 978-356 | Essex | Ipswich, MA | Verizon New England Inc. |
| 978-357 | Middlesex | N Reading, MA | Mcimetro Access Transmission Services LLC |
| 978-358 | Essex | Newburyport, MA | Teleport Communications America |
| 978-359 | Essex | Topsfield, MA | Xo Massachusetts |
| 978-360 | Essex | Haverhill, MA | Sprint Spectrum L.p. |
| 978-361 | Essex | Haverhill, MA | Sprint Spectrum L.p. |
| 978-362 | Middlesex | Billerica, MA | Comcast Phone Of Massachusetts |
| 978-363 | Essex | West Newbury, MA | Verizon New England Inc. |
| 978-364 | Middlesex | Lowell, MA | Global Crossing Local Services-ma |
| 978-365 | Worcester | Clinton, MA | Verizon New England Inc. |
| 978-366 | Middlesex | Sudbury, MA | Verizon New England Inc. |
| 978-367 | Middlesex | Lowell, MA | Verizon New England Inc. |
| 978-368 | Worcester | Clinton, MA | Verizon New England Inc. |
There are 743 prefixes, In the code area, the major cities are Beverly, MA;Chelmsford, MA;Danvers, MA;Fitchburg, . The major city is Boston.