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.
| Provider | Download Speed | Upload Speed | Latency |
|---|---|---|---|
| Xfinity Cable | 321 Mbps | 18 Mbps | 9 ms |
| AT&T DSL Fiber | 172 Mbps | 104 Mbps | 6 ms |
| * Data from speed tests taken in the last 3 months | |||
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.
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
| Date | Download Speed | Upload Speed | Latency |
|---|---|---|---|
| September 24, 2023 | 16 Mbps | 23 Mbps | n/a ms |
| September 24, 2023 | 13 Mbps | 27 Mbps | 12 ms |
| September 23, 2023 | 144 Mbps | 24 Mbps | n/a ms |
| September 22, 2023 | 134 Mbps | 17 Mbps | 11 ms |
| September 22, 2023 | 24 Mbps | 22 Mbps | n/a ms |
| September 22, 2023 | 1 Mbps | 3 Mbps | 32 ms |
| September 22, 2023 | 6 Mbps | 1 Mbps | 19 ms |
| September 22, 2023 | 114 Mbps | 17 Mbps | 8 ms |
| September 22, 2023 | 160 Mbps | 22 Mbps | 16 ms |
| September 21, 2023 | 3 Mbps | 11 Mbps | 15 ms |
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.
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
| Date | Download Speed | Upload Speed | Latency |
|---|---|---|---|
| September 21, 2023 | 1 Mbps | 1 Mbps | 409 ms |
| September 12, 2023 | 10 Mbps | 7 Mbps | 9 ms |
| September 3, 2023 | 254 Mbps | 1 Mbps | 7 ms |
| September 1, 2023 | 343 Mbps | 276 Mbps | 10 ms |
| August 31, 2023 | 305 Mbps | 381 Mbps | 4 ms |
| August 30, 2023 | 25 Mbps | 331 Mbps | 5 ms |
| August 29, 2023 | 257 Mbps | 98 Mbps | 6 ms |
| August 28, 2023 | 4 Mbps | 1 Mbps | 8 ms |
We’ll run a download test and an upload test to give you the full picture of your internet connection.