| District of Massachusetts area codes: 781 | |
|---|---|
| Country | United States |
| State/Province | Massachusetts |
| Major City | Boston |
| Time Zone | Eastern |
| Prefix | County | Primary City | Company |
|---|---|---|---|
| 781-285 | Plymouth | Duxbury, MA | Teleport Communications America |
| 781-286 | Suffolk | Revere, MA | Verizon New England Inc. |
| 781-287 | Suffolk | Boston, MA | Global Crossing Local Services-ma |
| 781-288 | Suffolk | Boston, MA | Allegiance Telecom |
| 781-289 | Suffolk | Revere, MA | Verizon New England Inc. |
| 781-290 | Middlesex | Waltham, MA | Verizon New England Inc. |
| 781-291 | Plymouth | Duxbury, MA | Sprint Spectrum L.p. |
| 781-292 | Norfolk | Needham, MA | Verizon New England Inc. |
| 781-293 | Plymouth | Hanson, MA | Verizon New England Inc. |
| 781-294 | Plymouth | Hanson, MA | Verizon New England Inc. |
| 781-295 | Suffolk | Boston, MA | Allegiance Telecom |
| 781-296 | Middlesex | Waltham, MA | Cellco Partnership DBA Verizon Wireless |
| 781-297 | Norfolk | Stoughton, MA | Verizon New England Inc. |
| 781-298 | Middlesex | Cambridge, MA | AT&T Local |
| 781-300 | Middlesex | Cambridge, MA | Xo Massachusetts |
| 781-301 | Suffolk | Boston, MA | Mcimetro Access Transmission Services LLC |
| 781-302 | Suffolk | Boston, MA | Teleport Communications America |
| 781-303 | Suffolk | Boston, MA | Allegiance Telecom |
| 781-304 | Suffolk | Boston, MA | Mcimetro Access Transmission Services LLC |
| 781-305 | Middlesex | Waban, MA | Xo Massachusetts |
There are 727 prefixes, In the code area, the major cities are Arlington, MA;Braintree, MA;Burlington, MA;Dedham,. The major city is Boston.