Internet Speeds in Fairfax, CA

In Fairfax there are 2 internet service providers, with Xfinity being the most popular. Xfinity offers cable internet service. In recent tests, Xfinity customers had an average download speed of 321 Mbps and an average upload speed of 18 Mbps. In addition to Xfinity, DSL and fiber internet service is also available from AT&T.

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
Xfinity
Cable
View Details →
321 Mbps18 Mbps9 ms
AT&T
DSL
Fiber
View Details →
172 Mbps104 Mbps6 ms
* Data from speed tests taken in the last 3 months

Internet Providers in Fairfax, CA

Xfinity

Cable

Download Speed

321Mbps

Upload Speed

18Mbps

Latency

9ms

Overview

Xfinity is the most popular provider in Fairfax offering cable internet service. Users have been getting 321 Mbps for download speeds and 18 Mbps for upload speeds over 1,281 recent tests.

Performance Breakdown

Xfinity has the fastest average download speed, the 2nd fastest average upload speed, and the 2nd lowest latency out of all of the providers in Fairfax. 35% of users saw download speeds faster than 500 Mbps, and 62% of users saw upload speeds between 10-25 Mbps.

Download Speeds

Upload Speeds

Recent Xfinity Speed Tests in Fairfax

DateDownload SpeedUpload SpeedLatency
September 24, 202316 Mbps23 Mbpsn/a ms
September 24, 202313 Mbps27 Mbps12 ms
September 23, 2023144 Mbps24 Mbpsn/a ms
September 22, 2023134 Mbps17 Mbps11 ms
September 22, 202324 Mbps22 Mbpsn/a ms
September 22, 20231 Mbps3 Mbps32 ms
September 22, 20236 Mbps1 Mbps19 ms
September 22, 2023114 Mbps17 Mbps8 ms
September 22, 2023160 Mbps22 Mbps16 ms
September 21, 20233 Mbps11 Mbps15 ms

AT&T

DSL
Fiber

Download Speed

172Mbps

Upload Speed

104Mbps

Latency

6ms

Overview

AT&T is the 2nd most popular provider in Fairfax offering DSL and fiber internet service. Users have been getting 172 Mbps for download speeds and 104 Mbps for upload speeds over 207 recent tests.

Performance Breakdown

AT&T has the 2nd fastest average download speed, the fastest average upload speed, and the lowest latency out of all of the providers in Fairfax. 28% of users saw download speeds between 250-500 Mbps, and 30% of users saw upload speeds between 100-250 Mbps.

Download Speeds

Upload Speeds

Recent AT&T Speed Tests in Fairfax

DateDownload SpeedUpload SpeedLatency
September 21, 20231 Mbps1 Mbps409 ms
September 12, 202310 Mbps7 Mbps9 ms
September 3, 2023254 Mbps1 Mbps7 ms
September 1, 2023343 Mbps276 Mbps10 ms
August 31, 2023305 Mbps381 Mbps4 ms
August 30, 202325 Mbps331 Mbps5 ms
August 29, 2023257 Mbps98 Mbps6 ms
August 28, 20234 Mbps1 Mbps8 ms

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Frequently Asked Questions

What internet providers are available in Fairfax, CA?

Xfinity and AT&T currently operate in Fairfax.

What is the most popular internet provider in Fairfax, CA?

Xfinity is currently the most popular internet provider in Fairfax based on the number of speed tests in the last 3 months.

What is the fastest internet provider in Fairfax, 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 Fairfax are getting, Xfinity provides the fastest download and upload speeds.

Is there fiber internet in Fairfax, CA?

AT&T provides fiber internet in Fairfax.