Internet Speeds in Diamond Bar, CA

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 136 Mbps and an average upload speed of 11 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.

Last updated on September 26, 2023
ProviderDownload SpeedUpload SpeedLatency
Spectrum
Cable
Fiber
View Details →
136 Mbps11 Mbps10 ms
Frontier Communications
DSL
Fiber
View Details →
154 Mbps105 Mbps6 ms
* Data from speed tests taken in the last 3 months

Internet Providers in Diamond Bar, CA

Spectrum

Cable
Fiber

Download Speed

136Mbps

Upload Speed

11Mbps

Latency

10ms

Overview

Spectrum is the most popular provider in Diamond Bar offering cable and fiber internet service. Users have been getting 136 Mbps for download speeds and 11 Mbps for upload speeds over 6,034 recent tests.

Performance Breakdown

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 100-250 Mbps, and 54% of users saw upload speeds between 10-25 Mbps.

Download Speeds

Upload Speeds

Recent Spectrum Speed Tests in Diamond Bar

DateDownload SpeedUpload SpeedLatency
September 24, 2023558 Mbps23 Mbps15 ms
September 24, 202326 Mbps11 Mbps22 ms
September 24, 202363 Mbps10 Mbps17 ms
September 24, 202346 Mbps5 Mbps15 ms
September 24, 2023560 Mbps32 Mbpsn/a ms
September 24, 2023523 Mbps30 Mbps6 ms
September 24, 2023211 Mbps21 Mbps13 ms
September 24, 2023377 Mbps20 Mbps57 ms
September 24, 202362 Mbps17 Mbps56 ms
September 24, 2023397 Mbps20 Mbps15 ms

Frontier Communications

DSL
Fiber

Download Speed

154Mbps

Upload Speed

105Mbps

Latency

6ms

Overview

Frontier Communications is the 2nd most popular provider in Diamond Bar offering DSL and fiber internet service. Users have been getting 154 Mbps for download speeds and 105 Mbps for upload speeds over 3,979 recent tests.

Performance Breakdown

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. 25% of users saw download speeds between 250-500 Mbps, and 26% of users saw upload speeds faster than 250 Mbps.

Download Speeds

Upload Speeds

Recent Frontier Communications Speed Tests in Diamond Bar

DateDownload SpeedUpload SpeedLatency
September 24, 2023122 Mbps44 Mbps8 ms
September 24, 2023336 Mbps223 Mbps5 ms
September 24, 2023406 Mbps165 Mbps7 ms
September 24, 2023473 Mbps443 Mbps13 ms
September 24, 2023170 Mbps188 Mbps4 ms
September 24, 202377 Mbps38 Mbps6 ms
September 24, 202357 Mbps17 Mbps9 ms
September 24, 2023651 Mbps555 Mbpsn/a ms
September 24, 2023272 Mbps431 Mbps5 ms
September 24, 2023151 Mbps89 Mbps6 ms

Test Your Internet Speed

Download
0
Mbps
Upload
0
Mbps
Latency ms

We’ll run a download test and an upload test to give you the full picture of your internet connection.

Nearby Cities

Popular Cities in California

Featured Cities

Frequently Asked Questions

What internet providers are available in Diamond Bar, CA?

Spectrum and Frontier Communications currently operate in Diamond Bar.

What is the most popular internet provider in Diamond Bar, CA?

Spectrum is currently the most popular internet provider in Diamond Bar based on the number of speed tests in the last 3 months.

What is the fastest internet provider in Diamond Bar, CA?

The fastest internet provider for you is going to differ based on your needs, and which providers actually serve your home. However, when it comes to the real speeds users in Diamond Bar are getting, Frontier Communications provides the fastest download speeds and Frontier Communications provides the fastest upload speeds.

Is there fiber internet in Diamond Bar, CA?

Frontier Communications and Spectrum provide fiber internet in Diamond Bar.