Costa Mesa residents have 3 internet providers to choose from. Spectrum is the most popular provider, offering cable and fiber internet service. In our research, we have been seeing 189 Mbps for download speeds and 12 Mbps for upload speeds for Spectrum customers over 18,642 recent tests. AT&T and Cox Communications also have coverage in Costa Mesa, although they are not as popular as Spectrum. These providers offer DSL, fiber and cable internet service.
See more detailed speed and coverage data below.
| Provider | Download Speed | Upload Speed | Latency |
|---|---|---|---|
| Spectrum Cable Fiber | 189 Mbps | 12 Mbps | 10 ms |
| AT&T DSL Fiber | 97 Mbps | 93 Mbps | 6 ms |
| Cox Communications Cable Fiber | 87 Mbps | 42 Mbps | 6 ms |
| * Data from speed tests taken in the last 3 months | |||
Spectrum is the most popular provider in Costa Mesa offering cable and fiber internet service. Users have been getting 189 Mbps for download speeds and 12 Mbps for upload speeds over 18,642 recent tests.
Spectrum has the fastest average download speed, the 3rd fastest average upload speed, and the 3rd lowest latency out of all of the providers in Costa Mesa. 33% of users saw download speeds between 250-500 Mbps, and 58% of users saw upload speeds between 10-25 Mbps.
Download Speeds
Upload Speeds
| Date | Download Speed | Upload Speed | Latency |
|---|---|---|---|
| September 24, 2023 | 492 Mbps | 38 Mbps | 13 ms |
| September 24, 2023 | 3 Mbps | 3 Mbps | 59 ms |
| September 24, 2023 | 138 Mbps | 12 Mbps | 16 ms |
| September 24, 2023 | 137 Mbps | 12 Mbps | 12 ms |
| September 24, 2023 | 66 Mbps | 6 Mbps | 10 ms |
| September 24, 2023 | 351 Mbps | 12 Mbps | 11 ms |
| September 24, 2023 | 473 Mbps | 23 Mbps | n/a ms |
| September 24, 2023 | 13 Mbps | 19 Mbps | 7 ms |
| September 24, 2023 | 248 Mbps | 9 Mbps | 58 ms |
| September 24, 2023 | 12 Mbps | 7 Mbps | 9 ms |
AT&T is the 2nd most popular provider in Costa Mesa offering DSL and fiber internet service. Users have been getting 97 Mbps for download speeds and 93 Mbps for upload speeds over 9,940 recent tests.
AT&T has the 2nd fastest average download speed, the fastest average upload speed, and the 2nd lowest latency out of all of the providers in Costa Mesa. 27% of users saw download speeds between 50-100 Mbps, and 30% of users saw upload speeds faster than 250 Mbps.
Download Speeds
Upload Speeds
| Date | Download Speed | Upload Speed | Latency |
|---|---|---|---|
| September 24, 2023 | 329 Mbps | 364 Mbps | n/a ms |
| September 24, 2023 | 92 Mbps | 94 Mbps | 170 ms |
| September 24, 2023 | 381 Mbps | 362 Mbps | 4 ms |
| September 24, 2023 | 420 Mbps | 424 Mbps | 3 ms |
| September 24, 2023 | 94 Mbps | 93 Mbps | n/a ms |
| September 24, 2023 | 215 Mbps | 108 Mbps | 6 ms |
| September 24, 2023 | 541 Mbps | 683 Mbps | n/a ms |
| September 24, 2023 | 46 Mbps | 15 Mbps | 28 ms |
| September 24, 2023 | 48 Mbps | 6 Mbps | n/a ms |
| September 24, 2023 | 72 Mbps | 17 Mbps | 24 ms |
Cox Communications is the 3rd most popular provider in Costa Mesa offering cable and fiber internet service. Users have been getting 87 Mbps for download speeds and 42 Mbps for upload speeds over 670 recent tests.
Cox Communications has the 3rd fastest average download speed, the 2nd fastest average upload speed, and the lowest latency out of all of the providers in Costa Mesa. 24% of users saw download speeds between 50-100 Mbps, and 18% of users saw upload speeds between 50-100 Mbps.
Download Speeds
Upload Speeds
| Date | Download Speed | Upload Speed | Latency |
|---|---|---|---|
| September 24, 2023 | 160 Mbps | 17 Mbps | 7 ms |
| September 23, 2023 | 1 Mbps | 12 Mbps | 5 ms |
| September 23, 2023 | 1 Mbps | 1 Mbps | 34 ms |
| September 23, 2023 | 1 Mbps | 168 Mbps | 463 ms |
| September 22, 2023 | 83 Mbps | 94 Mbps | 4 ms |
| September 21, 2023 | 159 Mbps | 35 Mbps | 8 ms |
| September 21, 2023 | 377 Mbps | 189 Mbps | 5 ms |
| September 20, 2023 | 173 Mbps | 36 Mbps | 9 ms |
| September 19, 2023 | 119 Mbps | 37 Mbps | 37 ms |
| September 19, 2023 | 11 Mbps | 2 Mbps | 7 ms |
We’ll run a download test and an upload test to give you the full picture of your internet connection.