Phone numbers in Oswego, New York
Oswego has 17 phone prefixes in area codes 315, 680.
Biggest holders: Verizon (local phone), Windstream (PAETEC), Verizon Wireless. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 24%
- Local phone company 29%
- Internet / business phone carrier 35%
- Phone company 12%
Every prefix in Oswego
Search the first six digits of a number in this list. If it's here, the number started in Oswego with the carrier shown. If it isn't, check the New York page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 315-207 | Verizon (local phone) | Local phone company | – |
| 315-216 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 315-236 | Tc Systems | Phone company | – |
| 315-312 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 315-326 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 315-341 | Verizon (local phone) | Local phone company | – |
| 315-342 | Verizon (local phone) | Local phone company | – |
| 315-343 | Verizon (local phone) | Local phone company | – |
| 315-349 | Verizon (local phone) | Local phone company | – |
| 315-529 | Verizon Wireless | Mobile carrier | – |
| 315-532 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 315-561 | T-Mobile (including Sprint) | Mobile carrier | 2001 |
| 315-596 | Onvoy | Internet / business phone carrier | – |
| 315-602 | Northland Networks | Phone company | – |
| 315-746 | T-Mobile (including Sprint) | Mobile carrier | – |
| 680-269 | Verizon Wireless | Mobile carrier | 2022 |
| 680-295 | Onvoy | Internet / business phone carrier | 2024 |
Most prefixes are pooled: the 10,000 numbers in each are handed out in blocks of 1,000 to different carriers, and people can also take their numbers to another carrier. So the carrier shown is where the prefix started, not a guarantee about any one number. Source: NANPA central office code records, 2026-10-10.