Phone numbers in Mount Calm, Texas
Mount Calm has 3 phone prefixes in area code 254.
Biggest holders: Windstream Comm Sw, Ama*techtel Communications-tx. This is the local calling area (rate center) where those prefixes were first assigned.
- Local phone company 100%
Every prefix in Mount Calm
Search the first six digits of a number in this list. If it's here, the number started in Mount Calm with the carrier shown. If it isn't, check the Texas page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 254-637 | Windstream Comm Sw | Local phone company | 2015 |
| 254-993 | Windstream Comm Sw | Local phone company | – |
| 254-994 | Ama*techtel Communications-tx | Local phone company | 2013 |
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.