Phone numbers in East Hampton, New York
East Hampton has 11 phone prefixes in area codes 631, 934.
Biggest holders: Verizon (local phone), Csc Voice, Peerless Network Of New York. This is the local calling area (rate center) where those prefixes were first assigned.
- Local phone company 27%
- Internet / business phone carrier 55%
- Phone company 18%
Every prefix in East Hampton
Search the first six digits of a number in this list. If it's here, the number started in East Hampton with the carrier shown. If it isn't, check the New York page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 631-248 | Peerless Network Of New York | Internet / business phone carrier | 2012 |
| 631-324 | Verizon (local phone) | Local phone company | – |
| 631-329 | Verizon (local phone) | Local phone company | – |
| 631-527 | Csc Voice | Internet / business phone carrier | 2011 |
| 631-604 | Csc Voice | Internet / business phone carrier | 2006 |
| 631-658 | Csc Voice | Internet / business phone carrier | 2013 |
| 631-771 | Level 3 (Lumen) | Internet / business phone carrier | 2004 |
| 631-907 | Verizon (local phone) | Local phone company | – |
| 631-931 | Wide Voice | Phone company | 2016 |
| 934-205 | Peering Hub | Phone company | 2021 |
| 934-265 | Onvoy | Internet / business phone carrier | 2025 |
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.