| District of New Jersey area codes: 856 | |
|---|---|
| Country | United States |
| State/Province | New Jersey |
| Major City | Camden |
| Time Zone | Eastern |
| Prefix | County | Primary City | Company |
|---|---|---|---|
| 856-274 | Gloucester | Williamstown, NJ | Usa Mobility Wireless |
| 856-275 | Salem | Salem, NJ | Sprint Spectrum L.p. |
| 856-276 | Salem | Penns Grove, NJ | Teleport Communications America |
| 856-277 | Salem | Woodstown, NJ | Usa Mobility Wireless |
| 856-278 | Camden | Haddonfield, NJ | Omnipoint Communications Enterprises, L.p. |
| 856-279 | Salem | Salem, NJ | Sprint Spectrum L.p. |
| 856-281 | Camden | Haddonfield, NJ | Cellco Partnership DBA Verizon Wireless |
| 856-282 | Camden | Laurel Springs, NJ | Level 3 Communications |
| 856-283 | Camden | Camden, NJ | Level 3 Communications |
| 856-284 | Camden | Camden, NJ | Teleport Communications America |
| 856-285 | Cumberland | Vineland, NJ | Netcarrier Telecom |
| 856-286 | Gloucester | Pitman, NJ | Cavalier Telephone (mid-atlantic) - NY |
| 856-287 | Camden | Haddon Heights, NJ | Cellco Partnership DBA Verizon Wireless |
| 856-288 | Camden | Camden, NJ | Broadvox-clec |
| 856-289 | Camden | Camden, NJ | Usa Mobility Wireless |
| 856-290 | Camden | Blackwood, NJ | Cavalier Telephone (mid-atlantic) - NY |
| 856-291 | Cumberland | Bridgeton, NJ | Broadview Networks |
| 856-292 | Gloucester | Wenonah, NJ | Netcarrier Telecom |
| 856-293 | Cumberland | Millville, NJ | Verizon New Jersey |
| 856-294 | Gloucester | Swedesboro, NJ | Xo New Jersey |
There are 544 prefixes, In the code area, the major cities are Bridgeton, NJ;Camden, NJ;Cherry Hill, NJ;Millville. The major city is Camden.