Phone numbers in Sayville, New York
Sayville has 15 phone prefixes in area codes 631, 934.
Biggest holders: Verizon (local phone), MCImetro (Verizon Business), Tc Systems. This is the local calling area (rate center) where those prefixes were first assigned.
- Local phone company 40%
- Internet / business phone carrier 53%
- Phone company 7%
Every prefix in Sayville
Search the first six digits of a number in this list. If it's here, the number started in Sayville with the carrier shown. If it isn't, check the New York page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 631-218 | Verizon (local phone) | Local phone company | – |
| 631-244 | Verizon (local phone) | Local phone company | – |
| 631-256 | Tc Systems | Phone company | – |
| 631-319 | Verizon (local phone) | Local phone company | 2006 |
| 631-337 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 631-563 | Verizon (local phone) | Local phone company | – |
| 631-564 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 631-567 | Verizon (local phone) | Local phone company | – |
| 631-573 | Csc Voice | Internet / business phone carrier | 2011 |
| 631-589 | Verizon (local phone) | Local phone company | – |
| 631-646 | Onvoy | Internet / business phone carrier | 2020 |
| 631-677 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 631-699 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 631-750 | Cablevision Lightpath | Internet / business phone carrier | – |
| 934-946 | Fractel | 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.