| District of Massachusetts area codes: 978 | |
|---|---|
| Country | United States |
| State/Province | Massachusetts |
| Major City | Boston |
| Time Zone | Eastern |
| Prefix | County | Primary City | Company |
|---|---|---|---|
| 978-201 | Middlesex | Acton, MA | Sprint Spectrum L.p. |
| 978-202 | Middlesex | Concord, MA | Mcimetro Access Transmission Services LLC |
| 978-203 | Middlesex | Wilmington, MA | Ctc Communications Corp. |
| 978-204 | Essex | Lawrence, MA | New Cingular Wireless PCS - DC |
| 978-205 | Middlesex | Wilmington, MA | Verizon New England Inc. |
| 978-206 | Middlesex | Acton, MA | Mcimetro Access Transmission Services LLC |
| 978-207 | Middlesex | Lowell, MA | Comcast Phone Of Massachusetts |
| 978-208 | Essex | Lawrence, MA | Comcast Phone Of Massachusetts |
| 978-209 | Middlesex | Sudbury, MA | Verizon New England Inc. |
| 978-210 | Essex | Peabody, MA | Sprint Spectrum L.p. |
| 978-212 | Worcester | Worcester, MA | Ctc Communications Corp. |
| 978-213 | Essex | Topsfield, MA | Verizon New England Inc. |
| 978-214 | Middlesex | Wilmington, MA | Verizon New England Inc. |
| 978-215 | Middlesex | Billerica, MA | Paetec Communications |
| 978-216 | Worcester | Bolton, MA | Bandwidth.com Clec |
| 978-217 | Middlesex | Sudbury, MA | Nep |
| 978-218 | Middlesex | Marlborough, MA | Teleport Communications America |
| 978-219 | Essex | Salem, MA | Broadwing Communications |
| 978-221 | Middlesex | Lowell, MA | Mci Worldcom Communications |
| 978-222 | Middlesex | Cambridge, MA | Xo Massachusetts |
There are 743 prefixes, In the code area, the major cities are Beverly, MA;Chelmsford, MA;Danvers, MA;Fitchburg, . The major city is Boston.