| District of Massachusetts area codes: 978 | |
|---|---|
| Country | United States |
| State/Province | Massachusetts |
| Major City | Boston |
| Time Zone | Eastern |
| Prefix | County | Primary City | Company |
|---|---|---|---|
| 978-897 | Middlesex | Maynard, MA | Verizon New England Inc. |
| 978-898 | Middlesex | N Reading, MA | Ctc Communications Corp. |
| 978-899 | Middlesex | Littleton, MA | AT&T Local |
| 978-901 | Middlesex | Billerica, MA | Mcimetro Access Transmission Services LLC |
| 978-902 | Essex | Lawrence, MA | Omnipoint Miami E License |
| 978-903 | Essex | Rowley, MA | Level 3 Communications |
| 978-904 | Essex | Newburyport, MA | AT&T Local |
| 978-905 | Middlesex | Lowell, MA | Mcimetro Access Transmission Services LLC |
| 978-906 | Worcester | Fitchburg, MA | New Cingular Wireless PCS - DC |
| 978-907 | Essex | Danvers, MA | Mcimetro Access Transmission Services LLC |
| 978-908 | Local Access LLC | ||
| 978-909 | Suffolk | Boston, MA | Mcimetro Access Transmission Services LLC |
| 978-910 | Essex | Salem, MA | Level 3 Communications |
| 978-912 | Essex | Haverhill, MA | Sprint Spectrum L.p. |
| 978-913 | Middlesex | Ashby, MA | Xo Massachusetts |
| 978-914 | Essex | Haverhill, MA | Cellco Partnership DBA Verizon Wireless |
| 978-915 | Middlesex | Cambridge, MA | AT&T Local |
| 978-917 | Middlesex | Sudbury, MA | Rcn Telecom Services |
| 978-918 | Essex | Lawrence, MA | Mcimetro Access Transmission Services LLC |
| 978-919 | Worcester | Gardner, MA | Level 3 Communications |
There are 743 prefixes, In the code area, the major cities are Beverly, MA;Chelmsford, MA;Danvers, MA;Fitchburg, . The major city is Boston.