Phone numbers in Polk City, Florida
Polk City has 9 phone prefixes in area code 863.
Biggest holders: Onvoy, Boost / Virgin Mobile, Teleport Communications America. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 11%
- Local phone company 11%
- Internet / business phone carrier 67%
- Phone company 11%
Every prefix in Polk City
Search the first six digits of a number in this list. If it's here, the number started in Polk City with the carrier shown. If it isn't, check the Florida page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 863-309 | Onvoy | Internet / business phone carrier | 2021 |
| 863-392 | Boost / Virgin Mobile | Mobile carrier | 2025 |
| 863-563 | Onvoy | Internet / business phone carrier | 2019 |
| 863-576 | Teleport Communications America | Internet / business phone carrier | – |
| 863-789 | Fractel | Internet / business phone carrier | 2021 |
| 863-821 | Invoxio Incorporated | Phone company | – |
| 863-874 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 863-888 | Terra Nova Telecom | Internet / business phone carrier | 2014 |
| 863-984 | Frontier | 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.