Charleston residents have 2 internet providers to choose from. CenturyLink is the most popular provider, offering DSL and fiber internet service. In our research, we have been seeing 18 Mbps for download speeds and 10 Mbps for upload speeds for CenturyLink customers over 716 recent tests. In addition to CenturyLink, cable internet service is also available from Suddenlink Communications.
See more detailed speed and coverage data below.
| Provider | Download Speed | Upload Speed | Latency |
|---|---|---|---|
| CenturyLink DSL Fiber | 18 Mbps | 10 Mbps | 224 ms |
| Suddenlink Communications Cable | 285 Mbps | 22 Mbps | 49 ms |
| * Data from speed tests taken in the last 3 months | |||
CenturyLink is the most popular provider in Charleston offering DSL and fiber internet service. Users have been getting 18 Mbps for download speeds and 10 Mbps for upload speeds over 716 recent tests.
CenturyLink 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 Charleston. 95% of users saw download speeds between 10-25 Mbps, and 49% of users saw upload speeds between 5-10 Mbps.
Download Speeds
Upload Speeds
| Date | Download Speed | Upload Speed | Latency |
|---|---|---|---|
| June 17, 2024 | 18 Mbps | 10 Mbps | 204 ms |
| June 16, 2024 | 18 Mbps | 11 Mbps | 340 ms |
| June 15, 2024 | 19 Mbps | 14 Mbps | 204 ms |
| June 14, 2024 | 18 Mbps | 5 Mbps | 218 ms |
| June 13, 2024 | 18 Mbps | 11 Mbps | 355 ms |
| June 12, 2024 | 18 Mbps | 10 Mbps | 340 ms |
| June 11, 2024 | 18 Mbps | 5 Mbps | 222 ms |
| June 10, 2024 | 19 Mbps | 7 Mbps | 219 ms |
| June 9, 2024 | 19 Mbps | 9 Mbps | 204 ms |
| June 8, 2024 | 18 Mbps | 9 Mbps | 203 ms |
Suddenlink Communications is the 2nd most popular provider in Charleston offering cable internet service. Users have been getting 285 Mbps for download speeds and 22 Mbps for upload speeds over 20 recent tests.
Suddenlink Communications has the fastest average download speed, the fastest average upload speed, and the lowest latency out of all of the providers in Charleston. 64% of users saw download speeds between 250-500 Mbps, and 50% of users saw upload speeds between 25-50 Mbps.
Download Speeds
Upload Speeds
We’ll run a download test and an upload test to give you the full picture of your internet connection.