There are 2 internet providers operating in Castro Valley, the most popular being Xfinity. Xfinity offers cable and fiber internet service. In 8,474 recent tests, on average, we have been seeing 183 Mbps for download speeds and 17 Mbps for upload speeds for Xfinity customers. In addition to Xfinity, DSL and fiber internet service is also available from AT&T.
While these are the real speeds we have been seeing in our research, there are many factors that go into the actual download and upload speeds you will encounter.
| Provider | Download Speed | Upload Speed | Latency |
|---|---|---|---|
| Xfinity Cable Fiber | 183 Mbps | 17 Mbps | 11 ms |
| AT&T DSL Fiber | 108 Mbps | 55 Mbps | 7 ms |
| * Data from speed tests taken in the last 3 months | |||
Xfinity is the most popular provider in Castro Valley offering cable and fiber internet service. Users have been getting 183 Mbps for download speeds and 17 Mbps for upload speeds over 8,474 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 Castro Valley. 25% of users saw download speeds between 100-250 Mbps, and 50% of users saw upload speeds between 10-25 Mbps.
Download Speeds
Upload Speeds
| Date | Download Speed | Upload Speed | Latency |
|---|---|---|---|
| September 24, 2023 | 309 Mbps | 22 Mbps | 15 ms |
| September 24, 2023 | 252 Mbps | 41 Mbps | n/a ms |
| September 24, 2023 | 154 Mbps | 4 Mbps | 10 ms |
| September 24, 2023 | 604 Mbps | 23 Mbps | 13 ms |
| September 24, 2023 | 209 Mbps | 1 Mbps | 8 ms |
| September 24, 2023 | 745 Mbps | 22 Mbps | 7 ms |
| September 24, 2023 | 350 Mbps | 36 Mbps | 23 ms |
| September 24, 2023 | 88 Mbps | 17 Mbps | 10 ms |
| September 24, 2023 | 22 Mbps | 1 Mbps | 20 ms |
| September 24, 2023 | 5 Mbps | 2 Mbps | 11 ms |
AT&T is the 2nd most popular provider in Castro Valley offering DSL and fiber internet service. Users have been getting 108 Mbps for download speeds and 55 Mbps for upload speeds over 4,827 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 Castro Valley. 21% of users saw download speeds faster than 500 Mbps, and 30% of users saw upload speeds faster than 250 Mbps.
Download Speeds
Upload Speeds
| Date | Download Speed | Upload Speed | Latency |
|---|---|---|---|
| September 24, 2023 | 53 Mbps | 11 Mbps | n/a ms |
| September 24, 2023 | 50 Mbps | 6 Mbps | 22 ms |
| September 24, 2023 | 12 Mbps | 1 Mbps | 24 ms |
| September 24, 2023 | 13 Mbps | 1 Mbps | 24 ms |
| September 24, 2023 | 525 Mbps | 297 Mbps | 9 ms |
| September 23, 2023 | 53 Mbps | 11 Mbps | n/a ms |
| September 23, 2023 | 21 Mbps | 2 Mbps | 29 ms |
| September 23, 2023 | 689 Mbps | 253 Mbps | 6 ms |
| September 23, 2023 | 32 Mbps | 6 Mbps | 23 ms |
| September 23, 2023 | 50 Mbps | 5 Mbps | 22 ms |
We’ll run a download test and an upload test to give you the full picture of your internet connection.