There are 2 internet providers operating in Sunnyvale, the most popular being AT&T. AT&T offers DSL and fiber internet service. In 651 recent tests, on average, we have been seeing 349 Mbps for download speeds and 255 Mbps for upload speeds for AT&T customers. In addition to AT&T, cable internet service is also available from Spectrum.
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 |
|---|---|---|---|
| AT&T DSL Fiber | 349 Mbps | 255 Mbps | 6 ms |
| Spectrum Cable | 93 Mbps | 11 Mbps | 12 ms |
| * Data from speed tests taken in the last 3 months | |||
AT&T is the most popular provider in Sunnyvale offering DSL and fiber internet service. Users have been getting 349 Mbps for download speeds and 255 Mbps for upload speeds over 651 recent tests.
AT&T has the fastest average download speed, the fastest average upload speed, and the lowest latency out of all of the providers in Sunnyvale. 37% of users saw download speeds between 250-500 Mbps, and 52% of users saw upload speeds faster than 250 Mbps.
Download Speeds
Upload Speeds
| Date | Download Speed | Upload Speed | Latency |
|---|---|---|---|
| March 16, 2024 | 62 Mbps | 50 Mbps | 6 ms |
| March 15, 2024 | 32 Mbps | 42 Mbps | 6 ms |
| March 15, 2024 | 699 Mbps | 627 Mbps | 7 ms |
| March 15, 2024 | 225 Mbps | 137 Mbps | 7 ms |
| March 15, 2024 | 3 Mbps | 100 Mbps | 9 ms |
| March 14, 2024 | 128 Mbps | 109 Mbps | 7 ms |
| March 14, 2024 | 235 Mbps | 119 Mbps | 7 ms |
| March 14, 2024 | 274 Mbps | 248 Mbps | 8 ms |
| March 14, 2024 | 134 Mbps | 145 Mbps | 7 ms |
| March 14, 2024 | 486 Mbps | 463 Mbps | 5 ms |
Spectrum is the 2nd most popular provider in Sunnyvale offering cable internet service. Users have been getting 93 Mbps for download speeds and 11 Mbps for upload speeds over 188 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 Sunnyvale. 52% of users saw download speeds between 50-100 Mbps, and 67% of users saw upload speeds between 10-25 Mbps.
Download Speeds
Upload Speeds
| Date | Download Speed | Upload Speed | Latency |
|---|---|---|---|
| March 14, 2024 | 93 Mbps | 10 Mbps | 15 ms |
| March 14, 2024 | 93 Mbps | 10 Mbps | 15 ms |
| March 13, 2024 | 92 Mbps | 10 Mbps | 15 ms |
| March 13, 2024 | 92 Mbps | 10 Mbps | 15 ms |
| March 12, 2024 | 92 Mbps | 10 Mbps | 19 ms |
| March 12, 2024 | 542 Mbps | 23 Mbps | 25 ms |
| March 11, 2024 | 93 Mbps | 10 Mbps | 12 ms |
| March 11, 2024 | 86 Mbps | 23 Mbps | 24 ms |
| March 10, 2024 | 93 Mbps | 10 Mbps | 32 ms |
| March 9, 2024 | 93 Mbps | 10 Mbps | 15 ms |
We’ll run a download test and an upload test to give you the full picture of your internet connection.