T-Mobile Fiber is expected in Sulphur • Sponsored T-Mobile Fiber is expected in Sulphur. Check availability on T-Mobile Fiber's Website • Sponsored
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Sulphur has 14 internet options – View all▼
Sulphur has one fiber provider, AT&T, and one cable provider, Optimum. Symmetric speeds of 5,000 Mbps are available in parts of the city.
| Provider | DownDownload (Mbps) | UpUpload (Mbps) | AvailabilityCoverage |
|---|---|---|---|
| AT&T | 5,000 | 5,000 | 98% |
Note: T-Mobile Fiber is expected to be available in parts of Sulphur, but that's not captured in Broadband Map's primary dataset. Check availability on T-Mobile Fiber's Website.
| Provider | DownDownload (Mbps) | UpUpload (Mbps) | AvailabilityCoverage |
|---|---|---|---|
| Optimum | 940 | 35 | 100% |
| Provider | DownDownload (Mbps) | UpUpload (Mbps) | AvailabilityCoverage |
|---|---|---|---|
| Verizon | 300 | 20 | 56% |
| MINTernet | 100 | 20 | 100% |
| T-Mobile | 100 | 20 | 100% |
| FulAir | 50 | 15 | 100% |
| Provider | DownDownload (Mbps) | UpUpload (Mbps) | AvailabilityCoverage |
|---|---|---|---|
| Starlink | 280 | 30 | 100% |
| Provider | DownDownload (Mbps) | UpUpload (Mbps) | AvailabilityCoverage |
|---|---|---|---|
| HughesNet | 100 | 5 | 100% |
| Viasat | 100 | 3 | 100% |
| Provider | TechnologyTech | Download (Mbps) | Upload (Mbps) | AvailabilityCoverage |
|---|---|---|---|---|
| Metronet Holdings | Fiber | 5,120 | 5,120 | 4% |
| Fastwyre Broadband | Fiber | 100 | 100 | 0.7% |
| AT&T | Fixed WirelessFixed Wireless | 25 | 3 | 2% |
| Fastwyre Broadband | DSL/CopperDSL | 25 | 3 | 0.2% |
Broadband Map's availability estimates are based on the census boundaries of Sulphur. Speed metrics capture internet providers' maximum advertised speeds. Both may be overoptimistic.
Broadband Map's listings of internet providers in Sulphur rely primarily on the November 2025 release from the FCC's Broadband Data Collection program (representing Sulphur ISPs' availability as of June 2025).