Phone numbers in Callahan, Florida
Callahan has 9 phone prefixes in area code 904.
Biggest holders: Windstream Florida, T-Mobile (including Sprint), Level 3 (Lumen). This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 22%
- Local phone company 33%
- Internet / business phone carrier 44%
Every prefix in Callahan
Search the first six digits of a number in this list. If it's here, the number started in Callahan with the carrier shown. If it isn't, check the Florida page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 904-320 | Windstream Florida | Local phone company | 2011 |
| 904-341 | Windstream Florida | Local phone company | 2010 |
| 904-507 | T-Mobile (including Sprint) | Mobile carrier | – |
| 904-628 | Comcast | Internet / business phone carrier | 2006 |
| 904-715 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 904-879 | Windstream Florida | Local phone company | – |
| 904-935 | T-Mobile (including Sprint) | Mobile carrier | 2024 |
| 904-980 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 904-989 | Onvoy | Internet / business phone carrier | 2025 |
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.