Spectrum is available in Black Diamond. Call 833‑399‑2784 • Sponsored Spectrum is available in Black Diamond. Check plans and availability ↗ or call 833‑399‑2784 • Sponsored
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Black Diamond has 11 internet options – View all▼
Black Diamond has two fiber providers, lumos and Spectrum. Symmetric speeds of 5,000 Mbps are available in parts of Black Diamond.
| Provider | DownDownload (Mbps) | UpUpload (Mbps) | AvailabilityCoverage |
|---|---|---|---|
| lumos | 5,000 | 5,000 | 12% |
| Spectrum | 1,000 | 500 | 1% |
| Provider | DownDownload (Mbps) | UpUpload (Mbps) | AvailabilityCoverage |
|---|---|---|---|
| Spectrum | 1,000 | 1,000 | 100% |
| Provider | DownDownload (Mbps) | UpUpload (Mbps) | AvailabilityCoverage |
|---|---|---|---|
| CenturyLink | 10-25 | 1-3 | 95% |
| Provider | DownDownload (Mbps) | UpUpload (Mbps) | AvailabilityCoverage |
|---|---|---|---|
| T-Mobile | Up to 498 Mbps498 | Up to 55 Mbps55 | 100% |
| Verizon | 300 | 20 | 100% |
| MINTernet | 100 | 20 | 91% |
| AT&T | 25 | 3 | 93% |
| 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 Black Diamond. Speed metrics capture internet providers' maximum advertised speeds. Both may be overoptimistic.
Broadband Map's listings of internet providers in Black Diamond rely primarily on the May 2026 release from the FCC's Broadband Data Collection program (representing Black Diamond ISPs' availability as of December 2025).