AT&T Fiber is available in O'Fallon. Call 833‑607‑2973 • Sponsored AT&T Fiber is available in O'Fallon. Get speeds up to 5 Gig. Check availability ↗ or call 833‑607‑2973 • Sponsored
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O'Fallon has 14 internet options – View all▼
O'Fallon has multiple fiber providers, including ClearWave and i3. Symmetric speeds of 8,000 Mbps are available in parts of O'Fallon.
| Provider | DownDownload (Mbps) | UpUpload (Mbps) | AvailabilityCoverage |
|---|---|---|---|
| i3 | 8,000 | 8,000 | 50% |
| ClearWave | 7,000 | 7,000 | 56% |
| AT&T | 5,000 | 5,000 | 32% |
| Spectrum | 1,000 | 1,000 | 33% |
| Provider | DownDownload (Mbps) | UpUpload (Mbps) | AvailabilityCoverage |
|---|---|---|---|
| Spectrum | 1,000 | 1,000 | 100% |
| Provider | DownDownload (Mbps) | UpUpload (Mbps) | AvailabilityCoverage |
|---|---|---|---|
| AT&T | 100 | 20 | 98% |
| Provider | DownDownload (Mbps) | UpUpload (Mbps) | AvailabilityCoverage |
|---|---|---|---|
| Verizon | 300 | 20 | 100% |
| T-Mobile | 100 | 20 | 99% |
| AT&T | 100 | 20 | 99% |
| Wisper ISP | 100 | 20 | 97% |
| MINTernet | 100 | 20 | 94% |
| Provider | DownDownload (Mbps) | UpUpload (Mbps) | AvailabilityCoverage |
|---|---|---|---|
| Starlink | 280 | 30 | 100% |
| Provider | DownDownload (Mbps) | UpUpload (Mbps) | AvailabilityCoverage |
|---|---|---|---|
| Viasat | 150 | 3 | 100% |
| HughesNet | 100 | 5 | 100% |
Broadband Map's availability estimates are based on the census boundaries of O'Fallon. Speed metrics capture internet providers' maximum advertised speeds. Both may be overoptimistic.
Broadband Map's listings of internet providers in O'Fallon rely primarily on the May 2026 release from the FCC's Broadband Data Collection program (representing O'Fallon ISPs' availability as of December 2025).