There are 3 internet providers operating in San Mateo, the most popular being Xfinity. Xfinity offers cable internet service. In 31,670 recent tests, on average, we have been seeing 156 Mbps for download speeds and 17 Mbps for upload speeds for Xfinity customers. In addition to Xfinity, DSL, fiber and cable internet service is also available from AT&T and Wave Broadband.
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 | 156 Mbps | 17 Mbps | 10 ms |
| AT&T DSL Fiber | 214 Mbps | 131 Mbps | 6 ms |
| Wave Broadband Cable DSL | 142 Mbps | 11 Mbps | 8 ms |
| * Data from speed tests taken in the last 3 months | |||
Xfinity is the most popular provider in San Mateo offering cable internet service. Users have been getting 156 Mbps for download speeds and 17 Mbps for upload speeds over 31,670 recent tests.
Xfinity has the 2nd fastest average download speed, the 2nd fastest average upload speed, and the 3rd lowest latency out of all of the providers in San Mateo. 25% of users saw download speeds between 100-250 Mbps, and 44% of users saw upload speeds between 10-25 Mbps.
Download Speeds
Upload Speeds
| Date | Download Speed | Upload Speed | Latency |
|---|---|---|---|
| September 24, 2023 | 27 Mbps | 1 Mbps | 27 ms |
| September 24, 2023 | 315 Mbps | 41 Mbps | n/a ms |
| September 24, 2023 | 353 Mbps | 21 Mbps | 9 ms |
| September 24, 2023 | 94 Mbps | 41 Mbps | 4 ms |
| September 24, 2023 | 119 Mbps | 23 Mbps | 25 ms |
| September 24, 2023 | 119 Mbps | 24 Mbps | 7 ms |
| September 24, 2023 | 82 Mbps | 44 Mbps | 7 ms |
| September 24, 2023 | 2 Mbps | 18 Mbps | 22 ms |
| September 24, 2023 | 60 Mbps | 12 Mbps | 7 ms |
| September 24, 2023 | 119 Mbps | 18 Mbps | 16 ms |
AT&T is the 2nd most popular provider in San Mateo offering DSL and fiber internet service. Users have been getting 214 Mbps for download speeds and 131 Mbps for upload speeds over 25,792 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 San Mateo. 25% of users saw download speeds between 250-500 Mbps, and 35% of users saw upload speeds faster than 250 Mbps.
Download Speeds
Upload Speeds
| Date | Download Speed | Upload Speed | Latency |
|---|---|---|---|
| September 24, 2023 | 522 Mbps | 389 Mbps | 15 ms |
| September 24, 2023 | 7 Mbps | 3 Mbps | 40 ms |
| September 24, 2023 | 1 Mbps | 7 Mbps | 322 ms |
| September 24, 2023 | 294 Mbps | 34 Mbps | 4 ms |
| September 24, 2023 | 607 Mbps | 591 Mbps | 3 ms |
| September 24, 2023 | 882 Mbps | 914 Mbps | 3 ms |
| September 24, 2023 | 779 Mbps | 414 Mbps | 6 ms |
| September 24, 2023 | 366 Mbps | 47 Mbps | 3 ms |
| September 24, 2023 | 330 Mbps | 234 Mbps | 7 ms |
| September 24, 2023 | 163 Mbps | 115 Mbps | 12 ms |
Wave Broadband is the 3rd most popular provider in San Mateo offering cable and DSL internet service. Users have been getting 142 Mbps for download speeds and 11 Mbps for upload speeds over 2,292 recent tests.
Wave Broadband has the 3rd fastest average download speed, the 3rd fastest average upload speed, and the 2nd lowest latency out of all of the providers in San Mateo. 24% of users saw download speeds between 250-500 Mbps, and 43% of users saw upload speeds between 10-25 Mbps.
Download Speeds
Upload Speeds
| Date | Download Speed | Upload Speed | Latency |
|---|---|---|---|
| September 24, 2023 | 95 Mbps | 33 Mbps | n/a ms |
| September 24, 2023 | 74 Mbps | 7 Mbps | 9 ms |
| September 24, 2023 | 98 Mbps | 20 Mbps | 66 ms |
| September 24, 2023 | 938 Mbps | 11 Mbps | 5 ms |
| September 24, 2023 | 933 Mbps | 33 Mbps | 11 ms |
| September 24, 2023 | 391 Mbps | 7 Mbps | 8 ms |
| September 23, 2023 | 95 Mbps | 33 Mbps | n/a ms |
| September 23, 2023 | 320 Mbps | 2 Mbps | 8 ms |
| September 23, 2023 | 462 Mbps | 5 Mbps | 7 ms |
| September 23, 2023 | 50 Mbps | 5 Mbps | 7 ms |
We’ll run a download test and an upload test to give you the full picture of your internet connection.