| District of New York area codes: 315 | |
|---|---|
| Country | United States |
| State/Province | New York |
| Major City | Syracuse |
| Time Zone | Eastern (UTC-05:00) |
| Prefix | County | Primary City | Company |
|---|---|---|---|
| 315-826 | Herkimer | Poland, NY | Newport Telephone Co. |
| 315-827 | Oneida | Ava, NY | Oneida County Rural Telephone Co. |
| 315-828 | New York | Geneva, NY | Paetec Communications |
| 315-829 | Oneida | Vernon, NY | Vernon Telephone Co. |
| 315-831 | Oneida | Remsen, NY | Citizens Telecomm Co Of Ny DBA Frontier Comm Of Ny |
| 315-832 | Oneida | Rome, NY | Omnipoint Communications |
| 315-833 | Onondaga | Syracuse, NY | Paetec Communications |
| 315-834 | Cayuga | Weedsport, NY | Verizon New York |
| 315-835 | Seneca | Waterloo, NY | Teleport Communications Group |
| 315-836 | Jefferson | Watertown, NY | Choice One Communications |
| 315-837 | Madison | Georgetown, NY | Citizens Telecomm Co Of Ny DBA Frontier Comm Of Ny |
| 315-838 | Oneida | Rome, NY | Telcove Atlantic |
| 315-839 | Oneida | Clayville, NY | Citizens Telecomm Co Of Ny DBA Frontier Comm Of Ny |
| 315-840 | Onondaga | Jordan, NY | Bandwidth.com Clec |
| 315-841 | Oneida | Waterville, NY | Citizens Telecomm Co Of Ny DBA Frontier Comm Of Ny |
| 315-842 | Saint Lawrence | Massena, NY | Cellco Partnership DBA Verizon Wireless |
| 315-843 | Oneida | Vernon Center, NY | Vernon Telephone Co. |
| 315-844 | Jefferson | Watertown, NY | Contact Communications |
| 315-845 | Herkimer | Newport, NY | Newport Telephone Co. |
| 315-846 | Jefferson | Ellisburg, NY | Citizens Telecomm Co Of Ny DBA Frontier Comm Of Ny |
There are 718 prefixes, In the code area, the major cities are Auburn, NY;Rome, NY;Syracuse, NY;Utica, NY;Waterto. The major city is Syracuse.