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 42 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 | 42 Mbps | 10 Mbps | 23 ms |
| Spectrum Cable | 217 Mbps | 12 Mbps | 12 ms |
| GeoLinks Fixed Wireless | 12 Mbps | 2 Mbps | 16 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 42 Mbps for download speeds and 10 Mbps for upload speeds over 2,074 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. 47% of users saw download speeds between 25-50 Mbps, and 50% of users saw upload speeds between 10-25 Mbps.
Download Speeds
Upload Speeds
| Date | Download Speed | Upload Speed | Latency |
|---|---|---|---|
| September 24, 2023 | 50 Mbps | 12 Mbps | 24 ms |
| September 24, 2023 | 29 Mbps | 2 Mbps | 36 ms |
| September 24, 2023 | 46 Mbps | 12 Mbps | 33 ms |
| September 23, 2023 | 47 Mbps | 10 Mbps | 22 ms |
| September 23, 2023 | 47 Mbps | 12 Mbps | n/a ms |
| September 22, 2023 | 27 Mbps | 4 Mbps | 19 ms |
| September 22, 2023 | 53 Mbps | 10 Mbps | 20 ms |
| September 22, 2023 | 46 Mbps | 12 Mbps | 26 ms |
| September 22, 2023 | 49 Mbps | 10 Mbps | 21 ms |
| September 22, 2023 | 43 Mbps | 8 Mbps | 24 ms |
Spectrum is the 2nd most popular provider in Castaic offering cable internet service. Users have been getting 217 Mbps for download speeds and 12 Mbps for upload speeds over 1,129 recent tests.
Spectrum has the fastest average download speed, the fastest average upload speed, and the lowest latency out of all of the providers in Castaic. 38% of users saw download speeds between 250-500 Mbps, and 65% of users saw upload speeds between 10-25 Mbps.
Download Speeds
Upload Speeds
| Date | Download Speed | Upload Speed | Latency |
|---|---|---|---|
| September 24, 2023 | 31 Mbps | 8 Mbps | 12 ms |
| September 24, 2023 | 355 Mbps | 11 Mbps | 6 ms |
| September 24, 2023 | 234 Mbps | 20 Mbps | 4 ms |
| September 24, 2023 | 243 Mbps | 10 Mbps | 13 ms |
| September 23, 2023 | 355 Mbps | 11 Mbps | 12 ms |
| September 23, 2023 | 282 Mbps | 23 Mbps | 12 ms |
| September 22, 2023 | 417 Mbps | 23 Mbps | 9 ms |
| September 22, 2023 | 108 Mbps | 10 Mbps | 9 ms |
| September 22, 2023 | 254 Mbps | 22 Mbps | 50 ms |
| September 22, 2023 | 543 Mbps | 22 Mbps | 9 ms |
GeoLinks is the 3rd most popular provider in Castaic offering fixed wireless internet service. Users have been getting 12 Mbps for download speeds and 2 Mbps for upload speeds over 18 recent tests.
GeoLinks 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 Castaic. 43% of users saw download speeds slower than 10 Mbps, and 62% of users saw upload speeds slower than 5 Mbps.
Download Speeds
Upload Speeds
| Date | Download Speed | Upload Speed | Latency |
|---|---|---|---|
| September 23, 2023 | 12 Mbps | 3 Mbps | 17 ms |
| September 22, 2023 | 8 Mbps | 2 Mbps | 10 ms |
| September 20, 2023 | 9 Mbps | 1 Mbps | 20 ms |
| September 19, 2023 | 7 Mbps | 2 Mbps | 16 ms |
| September 17, 2023 | 15 Mbps | 2 Mbps | 9 ms |
| September 16, 2023 | 13 Mbps | 6 Mbps | 8 ms |
| September 14, 2023 | 33 Mbps | 1 Mbps | 15 ms |
| September 13, 2023 | 15 Mbps | 1 Mbps | 19 ms |
| September 12, 2023 | 7 Mbps | 1 Mbps | 11 ms |
| September 6, 2023 | 28 Mbps | 8 Mbps | 57 ms |
We’ll run a download test and an upload test to give you the full picture of your internet connection.