Phone numbers in Hampton Bays, New York
Hampton Bays has 8 phone prefixes in area codes 631, 934.
Biggest holders: Csc Voice, Onvoy, Verizon (local phone). This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 12%
- Local phone company 25%
- Internet / business phone carrier 62%
Every prefix in Hampton Bays
Search the first six digits of a number in this list. If it's here, the number started in Hampton Bays with the carrier shown. If it isn't, check the New York page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 631-276 | MetroPCS (T-Mobile) | Mobile carrier | 2002 |
| 631-594 | Csc Voice | Internet / business phone carrier | 2001 |
| 631-685 | Onvoy | Internet / business phone carrier | – |
| 631-723 | Verizon (local phone) | Local phone company | – |
| 631-728 | Verizon (local phone) | Local phone company | – |
| 631-856 | Csc Voice | Internet / business phone carrier | – |
| 631-887 | Windstream (PAETEC) | Internet / business phone carrier | 2001 |
| 934-945 | Onvoy | Internet / business phone carrier | 2021 |
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.