In Castaic there are 3 internet service providers, with AT&T being the most popular. AT&T offers DSL and fixed wireless internet service. In recent tests, AT&T customers had an average download speed of 44 Mbps and an average upload speed of 10 Mbps. In addition to AT&T, Spectrum and GeoLinks offer cable and fixed wireless internet service.
While our research has shown these to be the real speeds that users experience, there are many factors that can affect the actual download and upload speeds you will encounter. These may include the type of internet connection you have, the distance between your device and the router, the number of users on the network, and the strength of the signal.
| Provider | Download Speed | Upload Speed | Latency |
|---|---|---|---|
| AT&T DSL Fixed Wireless | 44 Mbps | 10 Mbps | 23 ms |
| Spectrum Cable | 234 Mbps | 14 Mbps | 11 ms |
| GeoLinks Fixed Wireless | 19 Mbps | 3 Mbps | 10 ms |
| * Data from speed tests taken in the last 3 months | |||
AT&T is the most popular provider in Castaic offering DSL and fixed wireless internet service. Users have been getting 44 Mbps for download speeds and 10 Mbps for upload speeds over 2,006 recent tests.
AT&T 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 Castaic. 44% of users saw download speeds between 25-50 Mbps, and 49% of users saw upload speeds between 10-25 Mbps.
Download Speeds
Upload Speeds
| Date | Download Speed | Upload Speed | Latency |
|---|---|---|---|
| March 16, 2024 | 49 Mbps | 17 Mbps | 26 ms |
| March 16, 2024 | 29 Mbps | 5 Mbps | 19 ms |
| March 16, 2024 | 81 Mbps | 20 Mbps | 20 ms |
| March 16, 2024 | 89 Mbps | 18 Mbps | 24 ms |
| March 16, 2024 | 29 Mbps | 4 Mbps | 21 ms |
| March 16, 2024 | 44 Mbps | 5 Mbps | 22 ms |
| March 15, 2024 | 48 Mbps | 17 Mbps | 27 ms |
| March 15, 2024 | 29 Mbps | 5 Mbps | 18 ms |
| March 15, 2024 | 29 Mbps | 5 Mbps | 19 ms |
| March 15, 2024 | 51 Mbps | 10 Mbps | 24 ms |
Spectrum is the 2nd most popular provider in Castaic offering cable internet service. Users have been getting 234 Mbps for download speeds and 14 Mbps for upload speeds over 1,194 recent tests.
Spectrum has the fastest average download speed, the fastest average upload speed, and the 2nd lowest latency out of all of the providers in Castaic. 32% of users saw download speeds between 250-500 Mbps, and 52% of users saw upload speeds between 10-25 Mbps.
Download Speeds
Upload Speeds
| Date | Download Speed | Upload Speed | Latency |
|---|---|---|---|
| March 16, 2024 | 537 Mbps | 23 Mbps | 11 ms |
| March 16, 2024 | 300 Mbps | 21 Mbps | 17 ms |
| March 16, 2024 | 79 Mbps | 23 Mbps | 6 ms |
| March 16, 2024 | 322 Mbps | 12 Mbps | 9 ms |
| March 16, 2024 | 198 Mbps | 40 Mbps | 7 ms |
| March 16, 2024 | 115 Mbps | 1 Mbps | 11 ms |
| March 16, 2024 | 192 Mbps | 9 Mbps | 9 ms |
| March 15, 2024 | 517 Mbps | 23 Mbps | 9 ms |
| March 15, 2024 | 75 Mbps | 23 Mbps | 6 ms |
| March 15, 2024 | 215 Mbps | 10 Mbps | 10 ms |
GeoLinks is the 3rd most popular provider in Castaic offering fixed wireless internet service. Users have been getting 19 Mbps for download speeds and 3 Mbps for upload speeds over 64 recent tests.
GeoLinks has the 3rd fastest average download speed, the 3rd fastest average upload speed, and the lowest latency out of all of the providers in Castaic. 39% of users saw download speeds between 10-25 Mbps, and 63% of users saw upload speeds slower than 5 Mbps.
Download Speeds
Upload Speeds
| Date | Download Speed | Upload Speed | Latency |
|---|---|---|---|
| March 16, 2024 | 19 Mbps | 20 Mbps | 8 ms |
| March 15, 2024 | 33 Mbps | 32 Mbps | 52 ms |
| March 14, 2024 | 3 Mbps | 3 Mbps | 65 ms |
| February 27, 2024 | 29 Mbps | 26 Mbps | 11 ms |
| February 26, 2024 | 41 Mbps | 1 Mbps | 11 ms |
| February 19, 2024 | 41 Mbps | 1 Mbps | 10 ms |
We’ll run a download test and an upload test to give you the full picture of your internet connection.