Phone numbers in Montgomery, New York
Montgomery has 4 phone prefixes in area code 845.
Biggest holders: Frontier, Csc Voice, Boost / Virgin Mobile. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 25%
- Local phone company 25%
- Internet / business phone carrier 25%
- Phone company 25%
Every prefix in Montgomery
Search the first six digits of a number in this list. If it's here, the number started in Montgomery with the carrier shown. If it isn't, check the New York page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 845-457 | Frontier | Local phone company | – |
| 845-769 | Csc Voice | Internet / business phone carrier | 2004 |
| 845-949 | Boost / Virgin Mobile | Mobile carrier | 2023 |
| 845-990 | Coretel New York | Phone company | 2019 |
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.