In Diamond Bar there are 2 internet service providers, with Spectrum being the most popular. Spectrum offers cable and fiber internet service. In recent tests, Spectrum customers had an average download speed of 168 Mbps and an average upload speed of 12 Mbps. In addition to Spectrum, DSL and fiber internet service is also available from Frontier Communications.
While our research has shown these to be the real speeds that users experience, there are many factors that can affect the actual download and upload speeds you will encounter. These may include the type of internet connection you have, the distance between your device and the router, the number of users on the network, and the strength of the signal.
| Provider | Download Speed | Upload Speed | Latency |
|---|---|---|---|
| Spectrum Cable Fiber | 168 Mbps | 12 Mbps | 11 ms |
| Frontier Communications DSL Fiber | 219 Mbps | 116 Mbps | 5 ms |
| * 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 168 Mbps for download speeds and 12 Mbps for upload speeds over 9,026 recent tests.
Spectrum has the 2nd fastest average download speed, the 2nd fastest average upload speed, and the 2nd lowest latency out of all of the providers in Diamond Bar. 28% of users saw download speeds between 250-500 Mbps, and 61% of users saw upload speeds between 10-25 Mbps.
Download Speeds
Upload Speeds
| Date | Download Speed | Upload Speed | Latency |
|---|---|---|---|
| March 16, 2024 | 316 Mbps | 1 Mbps | 8 ms |
| March 16, 2024 | 39 Mbps | 1 Mbps | 8 ms |
| March 16, 2024 | 185 Mbps | 11 Mbps | 25 ms |
| March 16, 2024 | 229 Mbps | 23 Mbps | 6 ms |
| March 16, 2024 | 325 Mbps | 40 Mbps | 15 ms |
| March 16, 2024 | 339 Mbps | 11 Mbps | 10 ms |
| March 16, 2024 | 45 Mbps | 7 Mbps | 15 ms |
| March 16, 2024 | 215 Mbps | 7 Mbps | 12 ms |
| March 16, 2024 | 374 Mbps | 22 Mbps | 13 ms |
| March 16, 2024 | 324 Mbps | 9 Mbps | 13 ms |
Frontier Communications is the 2nd most popular provider in Diamond Bar offering DSL and fiber internet service. Users have been getting 219 Mbps for download speeds and 116 Mbps for upload speeds over 1,999 recent tests.
Frontier Communications has the fastest average download speed, the fastest average upload speed, and the lowest latency out of all of the providers in Diamond Bar. 28% of users saw download speeds between 250-500 Mbps, and 36% of users saw upload speeds faster than 250 Mbps.
Download Speeds
Upload Speeds
| Date | Download Speed | Upload Speed | Latency |
|---|---|---|---|
| March 16, 2024 | 407 Mbps | 551 Mbps | 2 ms |
| March 16, 2024 | 73 Mbps | 1 Mbps | 9 ms |
| March 16, 2024 | 494 Mbps | 459 Mbps | 5 ms |
| March 16, 2024 | 4 Mbps | 5 Mbps | 7 ms |
| March 16, 2024 | 385 Mbps | 236 Mbps | 9 ms |
| March 16, 2024 | 87 Mbps | 88 Mbps | 6 ms |
| March 15, 2024 | 83 Mbps | 91 Mbps | 5 ms |
| March 15, 2024 | 432 Mbps | 374 Mbps | 4 ms |
| March 15, 2024 | 934 Mbps | 940 Mbps | 3 ms |
| March 15, 2024 | 59 Mbps | 1 Mbps | 5 ms |
We’ll run a download test and an upload test to give you the full picture of your internet connection.