Phone numbers in Geneseo, New York
Geneseo has 8 phone prefixes in area code 585.
Biggest holders: Verizon Wireless, Frontier, Tc Systems. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 38%
- Local phone company 25%
- Internet / business phone carrier 25%
- Phone company 12%
Every prefix in Geneseo
Search the first six digits of a number in this list. If it's here, the number started in Geneseo with the carrier shown. If it isn't, check the New York page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 585-243 | Frontier | Local phone company | – |
| 585-245 | Frontier | Local phone company | – |
| 585-443 | Verizon Wireless | Mobile carrier | 2012 |
| 585-447 | Verizon Wireless | Mobile carrier | 2008 |
| 585-519 | Tc Systems | Phone company | 2001 |
| 585-549 | Verizon Wireless | Mobile carrier | 2019 |
| 585-741 | Onvoy | Internet / business phone carrier | 2024 |
| 585-991 | Windstream (PAETEC) | Internet / business phone carrier | – |
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.