Phone numbers in Erochester, New York
Erochester has 29 phone prefixes in area code 585.
Biggest holders: Frontier, AT&T Mobility, T-Mobile (including Sprint). This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 31%
- Local phone company 38%
- Internet / business phone carrier 31%
Every prefix in Erochester
Search the first six digits of a number in this list. If it's here, the number started in Erochester with the carrier shown. If it isn't, check the New York page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 585-200 | T-Mobile (including Sprint) | Mobile carrier | 2004 |
| 585-203 | AT&T Mobility | Mobile carrier | – |
| 585-218 | Frontier | Local phone company | – |
| 585-248 | Frontier | Local phone company | – |
| 585-249 | Frontier | Local phone company | – |
| 585-264 | Frontier | Local phone company | – |
| 585-267 | AT&T Mobility | Mobile carrier | 2003 |
| 585-309 | T-Mobile (including Sprint) | Mobile carrier | 2002 |
| 585-310 | Bandwidth | Internet / business phone carrier | 2010 |
| 585-348 | AT&T Mobility | Mobile carrier | 2008 |
| 585-381 | Frontier | Local phone company | – |
| 585-383 | Frontier | Local phone company | – |
| 585-385 | Frontier | Local phone company | – |
| 585-387 | Frontier | Local phone company | – |
| 585-389 | Frontier | Local phone company | – |
| 585-419 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 585-485 | AT&T Mobility | Mobile carrier | 2014 |
| 585-586 | Frontier | Local phone company | – |
| 585-606 | T-Mobile (including Sprint) | Mobile carrier | 2021 |
| 585-635 | AT&T Mobility | Mobile carrier | 2014 |
| 585-641 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 585-643 | Level 3 (Lumen) | Internet / business phone carrier | 2006 |
| 585-651 | Nuso | Internet / business phone carrier | 2022 |
| 585-662 | Level 3 (Lumen) | Internet / business phone carrier | 2004 |
| 585-673 | Bandwidth | Internet / business phone carrier | 2015 |
| 585-769 | Onvoy | Internet / business phone carrier | 2024 |
| 585-789 | T-Mobile (including Sprint) | Mobile carrier | 2008 |
| 585-833 | Fractel | Internet / business phone carrier | 2020 |
| 585-899 | Frontier | Local phone company | – |
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.