Northbrook residents have 2 internet providers to choose from. Xfinity is the most popular provider, offering cable internet service. In our research, we have been seeing 201 Mbps for download speeds and 22 Mbps for upload speeds for Xfinity customers over 9,731 recent tests. In addition to Xfinity, DSL and fiber internet service is also available from AT&T.
See more detailed speed and coverage data below.
| Provider | Download Speed | Upload Speed | Latency |
|---|---|---|---|
| Xfinity Cable | 201 Mbps | 22 Mbps | 7 ms |
| AT&T DSL Fiber | 221 Mbps | 161 Mbps | 6 ms |
| * Data from speed tests taken in the last 3 months | |||
Xfinity is the most popular provider in Northbrook offering cable internet service. Users have been getting 201 Mbps for download speeds and 22 Mbps for upload speeds over 9,731 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 Northbrook. 29% of users saw download speeds between 250-500 Mbps, and 63% of users saw upload speeds between 10-25 Mbps.
Download Speeds
Upload Speeds
| Date | Download Speed | Upload Speed | Latency |
|---|---|---|---|
| March 16, 2024 | 175 Mbps | 41 Mbps | 21 ms |
| March 16, 2024 | 83 Mbps | 21 Mbps | 9 ms |
| March 16, 2024 | 135 Mbps | 41 Mbps | 6 ms |
| March 16, 2024 | 472 Mbps | 14 Mbps | 9 ms |
| March 16, 2024 | 252 Mbps | 1 Mbps | 16 ms |
| March 16, 2024 | 747 Mbps | 37 Mbps | 5 ms |
| March 16, 2024 | 321 Mbps | 24 Mbps | 8 ms |
| March 16, 2024 | 102 Mbps | 32 Mbps | 6 ms |
| March 16, 2024 | 85 Mbps | 4 Mbps | 11 ms |
| March 16, 2024 | 504 Mbps | 20 Mbps | 8 ms |
AT&T is the 2nd most popular provider in Northbrook offering DSL and fiber internet service. Users have been getting 221 Mbps for download speeds and 161 Mbps for upload speeds over 5,576 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 Northbrook. 29% of users saw download speeds between 250-500 Mbps, and 38% of users saw upload speeds faster than 250 Mbps.
Download Speeds
Upload Speeds
| Date | Download Speed | Upload Speed | Latency |
|---|---|---|---|
| March 16, 2024 | 177 Mbps | 151 Mbps | 3 ms |
| March 16, 2024 | 333 Mbps | 235 Mbps | 5 ms |
| March 16, 2024 | 461 Mbps | 612 Mbps | 4 ms |
| March 16, 2024 | 132 Mbps | 115 Mbps | 8 ms |
| March 16, 2024 | 742 Mbps | 569 Mbps | 5 ms |
| March 16, 2024 | 17 Mbps | 8 Mbps | 24 ms |
| March 16, 2024 | 311 Mbps | 283 Mbps | 6 ms |
| March 16, 2024 | 368 Mbps | 455 Mbps | 24 ms |
| March 16, 2024 | 353 Mbps | 185 Mbps | 3 ms |
| March 16, 2024 | 34 Mbps | 64 Mbps | 63 ms |
We’ll run a download test and an upload test to give you the full picture of your internet connection.