Phone numbers in Waterloo, New York
Waterloo has 8 phone prefixes in area code 315.
Biggest holders: Windstream (PAETEC), Verizon (local phone), Onvoy. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 25%
- Local phone company 12%
- Internet / business phone carrier 38%
- Phone company 25%
Every prefix in Waterloo
Search the first six digits of a number in this list. If it's here, the number started in Waterloo with the carrier shown. If it isn't, check the New York page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 315-220 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 315-539 | Verizon (local phone) | Local phone company | – |
| 315-577 | Onvoy | Internet / business phone carrier | – |
| 315-651 | Verizon Wireless | Mobile carrier | – |
| 315-670 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 315-835 | Tc Systems | Phone company | – |
| 315-856 | MetroPCS (T-Mobile) | Mobile carrier | 2003 |
| 315-873 | Northland Networks | Phone company | – |
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.