There are 3 internet providers operating in San Mateo, the most popular being Xfinity. Xfinity offers cable internet service. In 35,632 recent tests, on average, we have been seeing 187 Mbps for download speeds and 20 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 | 187 Mbps | 20 Mbps | 10 ms |
| AT&T DSL Fiber | 248 Mbps | 156 Mbps | 6 ms |
| Wave Broadband Cable DSL | 148 Mbps | 12 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 187 Mbps for download speeds and 20 Mbps for upload speeds over 35,632 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. 26% of users saw download speeds between 250-500 Mbps, and 40% of users saw upload speeds between 10-25 Mbps.
Download Speeds
Upload Speeds
| Date | Download Speed | Upload Speed | Latency |
|---|---|---|---|
| March 16, 2024 | 427 Mbps | 38 Mbps | 8 ms |
| March 16, 2024 | 9 Mbps | 12 Mbps | 11 ms |
| March 16, 2024 | 556 Mbps | 12 Mbps | 10 ms |
| March 16, 2024 | 33 Mbps | 38 Mbps | 280 ms |
| March 16, 2024 | 202 Mbps | 41 Mbps | 5 ms |
| March 16, 2024 | 611 Mbps | 229 Mbps | 9 ms |
| March 16, 2024 | 90 Mbps | 40 Mbps | 11 ms |
| March 16, 2024 | 188 Mbps | 24 Mbps | 17 ms |
| March 16, 2024 | 724 Mbps | 153 Mbps | 14 ms |
| March 16, 2024 | 283 Mbps | 24 Mbps | 9 ms |
AT&T is the 2nd most popular provider in San Mateo offering DSL and fiber internet service. Users have been getting 248 Mbps for download speeds and 156 Mbps for upload speeds over 18,316 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. 28% of users saw download speeds between 250-500 Mbps, and 39% of users saw upload speeds faster than 250 Mbps.
Download Speeds
Upload Speeds
| Date | Download Speed | Upload Speed | Latency |
|---|---|---|---|
| March 16, 2024 | 917 Mbps | 907 Mbps | 4 ms |
| March 16, 2024 | 34 Mbps | 8 Mbps | 6 ms |
| March 16, 2024 | 48 Mbps | 12 Mbps | 18 ms |
| March 16, 2024 | 371 Mbps | 206 Mbps | 5 ms |
| March 16, 2024 | 328 Mbps | 300 Mbps | 4 ms |
| March 16, 2024 | 455 Mbps | 453 Mbps | 4 ms |
| March 16, 2024 | 307 Mbps | 237 Mbps | 7 ms |
| March 16, 2024 | 241 Mbps | 125 Mbps | 4 ms |
| March 16, 2024 | 275 Mbps | 237 Mbps | 5 ms |
| March 16, 2024 | 296 Mbps | 200 Mbps | 7 ms |
Wave Broadband is the 3rd most popular provider in San Mateo offering cable and DSL internet service. Users have been getting 148 Mbps for download speeds and 12 Mbps for upload speeds over 3,732 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. 27% of users saw download speeds between 250-500 Mbps, and 44% of users saw upload speeds between 10-25 Mbps.
Download Speeds
Upload Speeds
| Date | Download Speed | Upload Speed | Latency |
|---|---|---|---|
| March 16, 2024 | 328 Mbps | 310 Mbps | 18 ms |
| March 16, 2024 | 32 Mbps | 25 Mbps | 21 ms |
| March 16, 2024 | 203 Mbps | 12 Mbps | 5 ms |
| March 16, 2024 | 259 Mbps | 152 Mbps | 24 ms |
| March 16, 2024 | 379 Mbps | 17 Mbps | 12 ms |
| March 16, 2024 | 18 Mbps | 1 Mbps | 6 ms |
| March 16, 2024 | 101 Mbps | 7 Mbps | 6 ms |
| March 16, 2024 | 206 Mbps | 22 Mbps | 13 ms |
| March 16, 2024 | 911 Mbps | 9 Mbps | 20 ms |
| March 16, 2024 | 310 Mbps | 6 Mbps | 19 ms |
We’ll run a download test and an upload test to give you the full picture of your internet connection.