Residents of Altadena have 2 internet providers to choose from. The most popular provider is AT&T, which offers DSL and fiber internet service. Over 5,304 recent tests, our research shows that AT&T customers have been getting 239 Mbps for download speeds and 140 Mbps for upload speeds. In addition to AT&T, cable internet service is also available from Spectrum.
While these are the real speeds we have been seeing in recent tests, there are many factors that affect download and upload speeds, so your actual service may differ.
| Provider | Download Speed | Upload Speed | Latency |
|---|---|---|---|
| AT&T DSL Fiber | 239 Mbps | 140 Mbps | 5 ms |
| Spectrum Cable | 186 Mbps | 11 Mbps | 9 ms |
| * Data from speed tests taken in the last 3 months | |||
AT&T is the most popular provider in Altadena offering DSL and fiber internet service. Users have been getting 239 Mbps for download speeds and 140 Mbps for upload speeds over 5,304 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 Altadena. 30% of users saw download speeds between 250-500 Mbps, and 33% of users saw upload speeds faster than 250 Mbps.
Download Speeds
Upload Speeds
| Date | Download Speed | Upload Speed | Latency |
|---|---|---|---|
| March 16, 2024 | 389 Mbps | 113 Mbps | 8 ms |
| March 16, 2024 | 288 Mbps | 169 Mbps | 4 ms |
| March 16, 2024 | 53 Mbps | 11 Mbps | 23 ms |
| March 16, 2024 | 488 Mbps | 782 Mbps | 4 ms |
| March 16, 2024 | 929 Mbps | 715 Mbps | 2 ms |
| March 16, 2024 | 667 Mbps | 569 Mbps | 5 ms |
| March 16, 2024 | 473 Mbps | 321 Mbps | 7 ms |
| March 16, 2024 | 56 Mbps | 1 Mbps | 5 ms |
| March 16, 2024 | 349 Mbps | 286 Mbps | 4 ms |
| March 16, 2024 | 30 Mbps | 16 Mbps | 10 ms |
Spectrum is the 2nd most popular provider in Altadena offering cable internet service. Users have been getting 186 Mbps for download speeds and 11 Mbps for upload speeds over 4,068 recent tests.
Spectrum 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 Altadena. 33% of users saw download speeds between 100-250 Mbps, and 53% of users saw upload speeds between 10-25 Mbps.
Download Speeds
Upload Speeds
| Date | Download Speed | Upload Speed | Latency |
|---|---|---|---|
| March 16, 2024 | 83 Mbps | 37 Mbps | 9 ms |
| March 16, 2024 | 175 Mbps | 40 Mbps | 6 ms |
| March 16, 2024 | 105 Mbps | 40 Mbps | 5 ms |
| March 16, 2024 | 540 Mbps | 23 Mbps | 11 ms |
| March 16, 2024 | 530 Mbps | 28 Mbps | 12 ms |
| March 16, 2024 | 178 Mbps | 11 Mbps | 7 ms |
| March 16, 2024 | 150 Mbps | 11 Mbps | 5 ms |
| March 16, 2024 | 31 Mbps | 8 Mbps | 6 ms |
| March 16, 2024 | 192 Mbps | 25 Mbps | 14 ms |
| March 15, 2024 | 181 Mbps | 12 Mbps | 17 ms |
We’ll run a download test and an upload test to give you the full picture of your internet connection.