| District of Massachusetts area codes: 978 | |
|---|---|
| Country | United States |
| State/Province | Massachusetts |
| Major City | Boston |
| Time Zone | Eastern |
| Prefix | County | Primary City | Company |
|---|---|---|---|
| 978-285 | Worcester | Petersham, MA | Xo Massachusetts |
| 978-286 | Worcester | Sterling, MA | Broadwing Communications |
| 978-287 | Middlesex | Concord, MA | Verizon New England Inc. |
| 978-289 | Essex | Andover, MA | Ctc Communications Corp. |
| 978-290 | Essex | Gloucester, MA | Cellco Partnership DBA Verizon Wireless |
| 978-291 | Essex | Lawrence, MA | Choice One Communications |
| 978-292 | Essex | Lawrence, MA | Verizon New England Inc. |
| 978-293 | Middlesex | Hudson, MA | Rcn Telecom Services |
| 978-294 | Middlesex | Billerica, MA | Verizon New England Inc. |
| 978-295 | Middlesex | Sudbury, MA | Bandwidth.com Clec |
| 978-296 | Essex | Andover, MA | Paetec Communications |
| 978-297 | Worcester | Winchendon, MA | Verizon New England Inc. |
| 978-298 | Middlesex | Village Of Nagog Woods, MA | Mcimetro Access Transmission Services LLC |
| 978-299 | Essex | Beverly, MA | Xo Massachusetts |
| 978-300 | Middlesex | Townsend, MA | Peerless Network Of Massachusetts |
| 978-301 | Worcester | Petersham, MA | Broadwing Communications |
| 978-302 | Middlesex | Groton, MA | Cellco Partnership DBA Verizon Wireless |
| 978-303 | Middlesex | Westford, MA | Global Crossing Local Services-ma |
| 978-304 | Essex | Danvers, MA | Comcast Phone Of Massachusetts |
| 978-305 | Essex | Lawrence, MA | Sprint Spectrum L.p. |
There are 743 prefixes, In the code area, the major cities are Beverly, MA;Chelmsford, MA;Danvers, MA;Fitchburg, . The major city is Boston.