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Black Diamond has 11 internet options – View all▼
Black Diamond has multiple fiber providers, including Quantum Fiber and CenturyLink. Symmetric speeds of 2,000 Mbps are available in parts of the city.
| Provider | DownDownload (Mbps) | UpUpload (Mbps) | AvailabilityCoverage |
|---|---|---|---|
| Astound | 2,000 | 2,000 | 9% |
| Quantum Fiber | 2,000 | 1,000 | 16% |
| CenturyLink | 1,000 | 1,000 | 13% |
| Provider | DownDownload (Mbps) | UpUpload (Mbps) | AvailabilityCoverage |
|---|---|---|---|
| Xfinity | 2,000 | 250 | 99% |
| Provider | DownDownload (Mbps) | UpUpload (Mbps) | AvailabilityCoverage |
|---|---|---|---|
| CenturyLink | 140 | 20 | 79% |
| Provider | DownDownload (Mbps) | UpUpload (Mbps) | AvailabilityCoverage |
|---|---|---|---|
| Verizon | 300 | 20 | 72% |
| T-Mobile | 100 | 20 | 97% |
| AT&T | 25 | 3 | 41% |
| Provider | DownDownload (Mbps) | UpUpload (Mbps) | AvailabilityCoverage |
|---|---|---|---|
| Starlink | 280 | 30 | 100% |
| Provider | DownDownload (Mbps) | UpUpload (Mbps) | AvailabilityCoverage |
|---|---|---|---|
| HughesNet | 50 | 5 | 100% |
| Viasat | 50 | 3 | 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 November 2025 release from the FCC's Broadband Data Collection program (representing Black Diamond ISPs' availability as of June 2025).