There are 2 internet providers operating in Cupertino, the most popular being Xfinity. Xfinity offers cable internet service. In 20,435 recent tests, on average, we have been seeing 176 Mbps for download speeds and 23 Mbps for upload speeds for Xfinity customers. In addition to Xfinity, DSL, fiber and fixed wireless 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 | 176 Mbps | 23 Mbps | 9 ms |
| AT&T DSL Fiber Fixed Wireless | 111 Mbps | 64 Mbps | 7 ms |
| * Data from speed tests taken in the last 3 months | |||
Xfinity is the most popular provider in Cupertino offering cable internet service. Users have been getting 176 Mbps for download speeds and 23 Mbps for upload speeds over 20,435 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 Cupertino. 27% of users saw download speeds between 250-500 Mbps, and 41% of users saw upload speeds between 10-25 Mbps.
Download Speeds
Upload Speeds
| Date | Download Speed | Upload Speed | Latency |
|---|---|---|---|
| June 17, 2024 | 537 Mbps | 93 Mbps | 9 ms |
| June 17, 2024 | 47 Mbps | 23 Mbps | 7 ms |
| June 17, 2024 | 896 Mbps | 235 Mbps | 7 ms |
| June 17, 2024 | 787 Mbps | 22 Mbps | 7 ms |
| June 17, 2024 | 89 Mbps | 36 Mbps | 6 ms |
| June 17, 2024 | 139 Mbps | 41 Mbps | 5 ms |
| June 17, 2024 | 240 Mbps | 6 Mbps | 11 ms |
| June 17, 2024 | 54 Mbps | 6 Mbps | 38 ms |
| June 17, 2024 | 311 Mbps | 41 Mbps | 6 ms |
| June 17, 2024 | 120 Mbps | 18 Mbps | 7 ms |
AT&T is the 2nd most popular provider in Cupertino offering DSL, fiber and fixed wireless internet service. Users have been getting 111 Mbps for download speeds and 64 Mbps for upload speeds over 5,779 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 Cupertino. 21% of users saw download speeds between 250-500 Mbps, and 26% of users saw upload speeds faster than 250 Mbps.
Download Speeds
Upload Speeds
| Date | Download Speed | Upload Speed | Latency |
|---|---|---|---|
| June 17, 2024 | 125 Mbps | 108 Mbps | 8 ms |
| June 17, 2024 | 56 Mbps | 12 Mbps | 20 ms |
| June 17, 2024 | 739 Mbps | 260 Mbps | 7 ms |
| June 17, 2024 | 408 Mbps | 253 Mbps | 6 ms |
| June 17, 2024 | 231 Mbps | 124 Mbps | 5 ms |
| June 17, 2024 | 303 Mbps | 454 Mbps | 8 ms |
| June 17, 2024 | 624 Mbps | 374 Mbps | 5 ms |
| June 17, 2024 | 621 Mbps | 372 Mbps | 7 ms |
| June 17, 2024 | 584 Mbps | 587 Mbps | 3 ms |
| June 17, 2024 | 19 Mbps | 276 Mbps | 6 ms |
We’ll run a download test and an upload test to give you the full picture of your internet connection.