Phone numbers in Deer Park, New York
Deer Park has 30 phone prefixes in area codes 631, 934.
Biggest holders: Verizon (local phone), T-Mobile (including Sprint), Csc Voice. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 23%
- Local phone company 33%
- Internet / business phone carrier 37%
- Phone company 7%
Every prefix in Deer Park
Search the first six digits of a number in this list. If it's here, the number started in Deer Park with the carrier shown. If it isn't, check the New York page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 631-214 | Csc Voice | Internet / business phone carrier | 2015 |
| 631-242 | Verizon (local phone) | Local phone company | – |
| 631-243 | Verizon (local phone) | Local phone company | – |
| 631-254 | Verizon (local phone) | Local phone company | – |
| 631-274 | Verizon (local phone) | Local phone company | – |
| 631-306 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 631-392 | Csc Voice | Internet / business phone carrier | 2006 |
| 631-455 | T-Mobile (including Sprint) | Mobile carrier | – |
| 631-492 | Verizon (local phone) | Local phone company | – |
| 631-522 | Csc Voice | Internet / business phone carrier | 2009 |
| 631-586 | Verizon (local phone) | Local phone company | – |
| 631-595 | Verizon (local phone) | Local phone company | – |
| 631-667 | Verizon (local phone) | Local phone company | – |
| 631-782 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 631-809 | MetroPCS (T-Mobile) | Mobile carrier | 2018 |
| 631-855 | MetroPCS (T-Mobile) | Mobile carrier | – |
| 631-860 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 631-865 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 631-889 | T-Mobile (including Sprint) | Mobile carrier | 2002 |
| 631-906 | T-Mobile (including Sprint) | Mobile carrier | 2019 |
| 631-918 | Tc Systems | Phone company | – |
| 631-932 | Verizon (local phone) | Local phone company | 2005 |
| 631-940 | Cablevision Lightpath | Internet / business phone carrier | – |
| 631-955 | Verizon (local phone) | Local phone company | – |
| 631-964 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 631-984 | Csc Wireless | Mobile carrier | 2020 |
| 631-992 | Cablevision Lightpath | Internet / business phone carrier | 2013 |
| 934-204 | Peering Hub | Phone company | 2021 |
| 934-206 | Vonage America | Internet / business phone carrier | 2021 |
| 934-253 | T-Mobile (including Sprint) | Mobile carrier | 2023 |
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.