Phone numbers in Butler, Tennessee
Butler has 5 phone prefixes in area code 423.
Biggest holders: Charter / Spectrum, T-Mobile (including Sprint), Skybest Communications. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 20%
- Local phone company 20%
- Internet / business phone carrier 40%
- Phone company 20%
Every prefix in Butler
Search the first six digits of a number in this list. If it's here, the number started in Butler with the carrier shown. If it isn't, check the Tennessee page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 423-281 | Charter / Spectrum | Internet / business phone carrier | 2011 |
| 423-647 | T-Mobile (including Sprint) | Mobile carrier | – |
| 423-692 | Skybest Communications | Phone company | 2021 |
| 423-768 | CenturyLink / Lumen | Local phone company | – |
| 423-840 | Onvoy | Internet / business phone carrier | 2018 |
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.