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Black Diamond has 12 internet options – View all▼
Black Diamond has two fiber providers, Astound and Quantum Fiber. Symmetric speeds of 2,000 Mbps are available in parts of Black Diamond.
| Provider | DownDownload (Mbps) | UpUpload (Mbps) | AvailabilityCoverage |
|---|---|---|---|
| Astound | 2,000 | 2,000 | 22% |
| Quantum Fiber | 2,000 | 1,000 | 17% |
| Provider | DownDownload (Mbps) | UpUpload (Mbps) | AvailabilityCoverage |
|---|---|---|---|
| Xfinity | 2,000 | 250 | 98% |
| Provider | DownDownload (Mbps) | UpUpload (Mbps) | AvailabilityCoverage |
|---|---|---|---|
| CenturyLink | 140 | 20 | 89% |
| Provider | DownDownload (Mbps) | UpUpload (Mbps) | AvailabilityCoverage |
|---|---|---|---|
| T-Mobile 5G Home | Up to 498498 | Up to 5555 | 97% |
| MINTernet | Up to 415415 | Up to 5555 | 10% |
| Verizon 5G Home | 300 | 20 | 100% |
| Skynet | 100 | 100 | 100% |
| AT&T Internet Air | 100 | 20 | 51% |
| Provider | DownDownload (Mbps) | UpUpload (Mbps) | AvailabilityCoverage |
|---|---|---|---|
| Starlink | 280 | 30 | 100% |
| Provider | DownDownload (Mbps) | UpUpload (Mbps) | AvailabilityCoverage |
|---|---|---|---|
| Viasat | 100 | 3 | 100% |
| HughesNet | 50 | 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 data from the FCC's Broadband Data Collection program representing Black Diamond ISPs' availability as of December 2025 (published May 2026, with FCC revisions through July 2026).