There are 2 internet providers operating in Cupertino, the most popular being Xfinity. Xfinity offers cable internet service. In 15,780 recent tests, on average, we have been seeing 140 Mbps for download speeds and 12 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 | 140 Mbps | 12 Mbps | 9 ms |
| AT&T DSL Fiber Fixed Wireless | 154 Mbps | 65 Mbps | 6 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 140 Mbps for download speeds and 12 Mbps for upload speeds over 15,780 recent tests.
Xfinity 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 Cupertino. 25% 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 |
|---|---|---|---|
| February 2, 2023 | 9 Mbps | 9 Mbps | 16 ms |
| February 2, 2023 | 168 Mbps | 41 Mbps | n/a ms |
| February 2, 2023 | 42 Mbps | 9 Mbps | 9 ms |
| February 2, 2023 | 200 Mbps | 12 Mbps | 13 ms |
| February 2, 2023 | 154 Mbps | 1 Mbps | 10 ms |
| February 2, 2023 | 228 Mbps | 12 Mbps | 9 ms |
| February 2, 2023 | 299 Mbps | 39 Mbps | 16 ms |
| February 2, 2023 | 707 Mbps | 41 Mbps | 5 ms |
| February 2, 2023 | 301 Mbps | 39 Mbps | n/a ms |
| February 2, 2023 | 1 Mbps | 9 Mbps | 53 ms |
AT&T is the 2nd most popular provider in Cupertino offering DSL, fiber and fixed wireless internet service. Users have been getting 154 Mbps for download speeds and 65 Mbps for upload speeds over 10,192 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 Cupertino. 26% 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 |
|---|---|---|---|
| February 2, 2023 | 681 Mbps | 313 Mbps | 6 ms |
| February 2, 2023 | 57 Mbps | 57 Mbps | 7 ms |
| February 2, 2023 | 362 Mbps | 358 Mbps | 7 ms |
| February 2, 2023 | 448 Mbps | 490 Mbps | 7 ms |
| February 2, 2023 | 490 Mbps | 471 Mbps | n/a ms |
| February 2, 2023 | 39 Mbps | 12 Mbps | 31 ms |
| February 2, 2023 | 55 Mbps | 12 Mbps | 19 ms |
| February 2, 2023 | 92 Mbps | 18 Mbps | 23 ms |
| February 2, 2023 | 577 Mbps | 497 Mbps | 9 ms |
| February 2, 2023 | 46 Mbps | 31 Mbps | 5 ms |
We’ll run a download test and an upload test to give you the full picture of your internet connection.