Phone numbers in Henrietta, New York
Henrietta has 12 phone prefixes in area code 585.
Biggest holders: Frontier, Onvoy, MCImetro (Verizon Business). This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 8%
- Local phone company 33%
- Internet / business phone carrier 58%
Every prefix in Henrietta
Search the first six digits of a number in this list. If it's here, the number started in Henrietta with the carrier shown. If it isn't, check the New York page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 585-321 | Frontier | Local phone company | – |
| 585-334 | Frontier | Local phone company | – |
| 585-358 | MCImetro (Verizon Business) | Internet / business phone carrier | 2011 |
| 585-359 | Frontier | Local phone company | – |
| 585-404 | Charter / Spectrum | Internet / business phone carrier | 2016 |
| 585-439 | AT&T Mobility | Mobile carrier | 2018 |
| 585-444 | Windstream (PAETEC) | Internet / business phone carrier | 2007 |
| 585-486 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 585-487 | Frontier | Local phone company | – |
| 585-601 | Onvoy | Internet / business phone carrier | 2020 |
| 585-791 | Onvoy | Internet / business phone carrier | 2024 |
| 585-832 | TON80 Communications | Internet / business phone carrier | 2022 |
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.