Phone numbers in Clewiston, Florida
Clewiston has 14 phone prefixes in area code 863.
Biggest holders: AT&T Mobility, CenturyLink / Lumen, T-Mobile (including Sprint). This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 43%
- Local phone company 21%
- Internet / business phone carrier 29%
- Phone company 7%
Every prefix in Clewiston
Search the first six digits of a number in this list. If it's here, the number started in Clewiston with the carrier shown. If it isn't, check the Florida page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 863-228 | T-Mobile (including Sprint) | Mobile carrier | – |
| 863-233 | T-Mobile (including Sprint) | Mobile carrier | 2001 |
| 863-254 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 863-281 | Telnyx | Internet / business phone carrier | 2021 |
| 863-301 | Level 3 (Lumen) | Internet / business phone carrier | 2001 |
| 863-351 | AT&T Mobility | Mobile carrier | 2023 |
| 863-527 | Novus Communications | Phone company | 2002 |
| 863-553 | TON80 Communications | Internet / business phone carrier | 2022 |
| 863-599 | AT&T Mobility | Mobile carrier | – |
| 863-677 | AT&T Mobility | Mobile carrier | – |
| 863-805 | CenturyLink / Lumen | Local phone company | – |
| 863-885 | Verizon Wireless | Mobile carrier | – |
| 863-902 | CenturyLink / Lumen | Local phone company | – |
| 863-983 | CenturyLink / Lumen | 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.