There are 3 internet providers operating in Sunnyvale, the most popular being Xfinity. Xfinity offers cable internet service. In 54,500 recent tests, on average, we have been seeing 185 Mbps for download speeds and 15 Mbps for upload speeds for Xfinity customers. In addition to Xfinity, DSL, fiber and fixed wireless internet service is also available from AT&T and Sail Internet.
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 | 185 Mbps | 15 Mbps | 9 ms |
| AT&T DSL Fiber | 194 Mbps | 97 Mbps | 7 ms |
| Sail Internet Fixed Wireless | 256 Mbps | 103 Mbps | 6 ms |
| * Data from speed tests taken in the last 3 months | |||
Xfinity is the most popular provider in Sunnyvale offering cable internet service. Users have been getting 185 Mbps for download speeds and 15 Mbps for upload speeds over 54,500 recent tests.
Xfinity has the 3rd fastest average download speed, the 3rd fastest average upload speed, and the 3rd lowest latency out of all of the providers in Sunnyvale. 27% of users saw download speeds between 100-250 Mbps, and 47% of users saw upload speeds between 10-25 Mbps.
Download Speeds
Upload Speeds
| Date | Download Speed | Upload Speed | Latency |
|---|---|---|---|
| March 16, 2024 | 228 Mbps | 19 Mbps | 16 ms |
| March 16, 2024 | 194 Mbps | 18 Mbps | 14 ms |
| March 16, 2024 | 93 Mbps | 38 Mbps | 7 ms |
| March 16, 2024 | 106 Mbps | 23 Mbps | 7 ms |
| March 16, 2024 | 119 Mbps | 18 Mbps | 17 ms |
| March 16, 2024 | 200 Mbps | 102 Mbps | 14 ms |
| March 16, 2024 | 83 Mbps | 10 Mbps | 9 ms |
| March 16, 2024 | 64 Mbps | 5 Mbps | 17 ms |
| March 16, 2024 | 328 Mbps | 22 Mbps | 16 ms |
| March 16, 2024 | 118 Mbps | 18 Mbps | 6 ms |
AT&T is the 2nd most popular provider in Sunnyvale offering DSL and fiber internet service. Users have been getting 194 Mbps for download speeds and 97 Mbps for upload speeds over 15,069 recent tests.
AT&T 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. 23% of users saw download speeds between 250-500 Mbps, and 33% of users saw upload speeds faster than 250 Mbps.
Download Speeds
Upload Speeds
| Date | Download Speed | Upload Speed | Latency |
|---|---|---|---|
| March 16, 2024 | 853 Mbps | 897 Mbps | 4 ms |
| March 16, 2024 | 917 Mbps | 836 Mbps | 4 ms |
| March 16, 2024 | 312 Mbps | 109 Mbps | 6 ms |
| March 16, 2024 | 882 Mbps | 752 Mbps | 5 ms |
| March 16, 2024 | 64 Mbps | 26 Mbps | 6 ms |
| March 16, 2024 | 338 Mbps | 340 Mbps | 5 ms |
| March 16, 2024 | 465 Mbps | 312 Mbps | 5 ms |
| March 16, 2024 | 41 Mbps | 10 Mbps | 4 ms |
| March 16, 2024 | 48 Mbps | 2 Mbps | 20 ms |
| March 16, 2024 | 596 Mbps | 516 Mbps | 5 ms |
Sail Internet is the 3rd most popular provider in Sunnyvale offering fixed wireless internet service. Users have been getting 256 Mbps for download speeds and 103 Mbps for upload speeds over 1,626 recent tests.
Sail Internet has the fastest average download speed, the fastest average upload speed, and the lowest latency out of all of the providers in Sunnyvale. 33% of users saw download speeds between 250-500 Mbps, and 29% of users saw upload speeds between 100-250 Mbps.
Download Speeds
Upload Speeds
| Date | Download Speed | Upload Speed | Latency |
|---|---|---|---|
| March 16, 2024 | 168 Mbps | 139 Mbps | 7 ms |
| March 15, 2024 | 593 Mbps | 696 Mbps | 4 ms |
| March 15, 2024 | 75 Mbps | 76 Mbps | 6 ms |
| March 15, 2024 | 319 Mbps | 301 Mbps | 4 ms |
| March 14, 2024 | 82 Mbps | 60 Mbps | 18 ms |
| March 14, 2024 | 739 Mbps | 925 Mbps | 3 ms |
| March 13, 2024 | 637 Mbps | 411 Mbps | 4 ms |
| March 11, 2024 | 257 Mbps | 328 Mbps | 7 ms |
| March 8, 2024 | 142 Mbps | 118 Mbps | 6 ms |
| March 8, 2024 | 264 Mbps | 241 Mbps | 5 ms |
We’ll run a download test and an upload test to give you the full picture of your internet connection.