Phone numbers in St. Cloud, Florida
St. Cloud has 19 phone prefixes in area codes 321, 407, 689.
Biggest holders: MetroPCS (T-Mobile), CenturyLink / Lumen, Fractel. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 32%
- Local phone company 21%
- Internet / business phone carrier 47%
Every prefix in St. Cloud
Search the first six digits of a number in this list. If it's here, the number started in St. Cloud with the carrier shown. If it isn't, check the Florida page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 321-624 | MetroPCS (T-Mobile) | Mobile carrier | 2001 |
| 321-766 | Summit Broadband | Internet / business phone carrier | – |
| 321-805 | MetroPCS (T-Mobile) | Mobile carrier | 2006 |
| 321-895 | MetroPCS (T-Mobile) | Mobile carrier | 2006 |
| 407-498 | CenturyLink / Lumen | Local phone company | – |
| 407-556 | Teleport Communications America | Internet / business phone carrier | – |
| 407-593 | Bhn IP Enabled Services | Internet / business phone carrier | – |
| 407-709 | MetroPCS (T-Mobile) | Mobile carrier | – |
| 407-891 | CenturyLink / Lumen | Local phone company | – |
| 407-892 | CenturyLink / Lumen | Local phone company | – |
| 407-908 | MetroPCS (T-Mobile) | Mobile carrier | – |
| 407-957 | CenturyLink / Lumen | Local phone company | – |
| 407-979 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 689-210 | MetroPCS (T-Mobile) | Mobile carrier | 2019 |
| 689-214 | Bandwidth | Internet / business phone carrier | 2020 |
| 689-314 | Nuso | Internet / business phone carrier | 2023 |
| 689-334 | Twilio | Internet / business phone carrier | 2024 |
| 689-588 | Fractel | Internet / business phone carrier | 2022 |
| 689-699 | Fractel | Internet / business phone carrier | 2021 |
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.