Diamond Bar residents have 2 internet providers to choose from. Spectrum is the most popular provider, offering cable and fiber internet service. In our research, we have been seeing 105 Mbps for download speeds and 11 Mbps for upload speeds for Spectrum customers over 8,203 recent tests. In addition to Spectrum, DSL and fiber internet service is also available from Frontier Communications.
See more detailed speed and coverage data below.
| Provider | Download Speed | Upload Speed | |
|---|---|---|---|
| Spectrum Cable Fiber | 105 Mbps | 11 Mbps | |
| Frontier Communications DSL Fiber | 107 Mbps | 82 Mbps | |
| * Data from speed tests taken in the last 3 months | |||
Spectrum is the most popular provider in Diamond Bar offering cable and fiber internet service. Users have been getting 105 Mbps for download speeds and 11 Mbps for upload speeds over 8,203 recent tests.
Spectrum has the 2nd fastest average download speeds and the 2nd fastest average upload speeds out of all of the providers in Diamond Bar. 40% of users saw download speeds between 100-250 Mbps, and 53% of users saw upload speeds between 10-25 Mbps.
Download Speeds
Upload Speeds
Frontier Communications is the 2nd most popular provider in Diamond Bar offering DSL and fiber internet service. Users have been getting 107 Mbps for download speeds and 82 Mbps for upload speeds over 3,917 recent tests.
Frontier Communications has the fastest average download speeds and the fastest average upload speeds out of all of the providers in Diamond Bar. 23% of users saw download speeds between 250-500 Mbps, and 27% of users saw upload speeds between 100-250 Mbps.
Download Speeds
Upload Speeds
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This speed test goes directly towards making the speed data more accurate in your city.