| State | Major City | Time Zone |
|---|---|---|
| Massachusetts | Danvers | Eastern (7:04am) |
| Prefix | City 1 | City 2 | City 3 | City 4 | City 5 |
|---|---|---|---|---|---|
| 351 | Beverly, MA | Chelmsford, MA | Danvers, MA | Fitchburg, MA | Gardner, MA |
| 351 | Gloucester, MA | Haverhill, MA | Lawrence, MA | Leominster, MA | Lowell, MA |
| 351 | Methuen, MA | Peabody, MA | Salem, MA | Wilmington, MA |
| Prefix | Primary City | Company | County | Usage | Introduced |
|---|---|---|---|---|---|
| 351 - 201 | Danvers, MA | Sprint Spectrum L.p. | Essex | Cell Number | 08/31/2003 |
| 351 - 202 | Pepperell, MA | Peerless Network Of Massachusetts | Middlesex | Landline | 08/29/2012 |
| 351 - 205 | Georgetown, MA | Peerless Network Of Massachusetts | Essex | Landline | 08/29/2012 |
| 351 - 206 | Rockport, MA | Peerless Network Of Massachusetts | Essex | Landline | 01/08/2013 |
| 351 - 207 | Comcast Phone Of Massachusetts | Unknown | 05/12/2014 | ||
| 351 - 814 | Multiple Ocn Listing | Unknown |