Charleston residents have 3 internet providers to choose from. CenturyLink is the most popular provider, offering DSL internet service. In our research, we have been seeing 17 Mbps for download speeds and 1 Mbps for upload speeds for CenturyLink customers over 11 recent tests. Suddenlink Communications and Cox Communications also have coverage in Charleston, although they are not as popular as CenturyLink. These providers offer cable internet service.
See more detailed speed and coverage data below.
| Provider | Download Speed | Upload Speed | Latency |
|---|---|---|---|
| CenturyLink DSL | 17 Mbps | 1 Mbps | 25 ms |
| Suddenlink Communications Cable | 14 Mbps | 1 Mbps | 49 ms |
| Cox Communications Cable | 76 Mbps | 62 Mbps | 12 ms |
| * Data from speed tests taken in the last 3 months | |||
CenturyLink is the most popular provider in Charleston offering DSL internet service. Users have been getting 17 Mbps for download speeds and 1 Mbps for upload speeds over 11 recent tests.
CenturyLink has the 2nd fastest average download speed, the 3rd fastest average upload speed, and the 2nd lowest latency out of all of the providers in Charleston. 60% of users saw download speeds between 10-25 Mbps, and 100% of users saw upload speeds slower than 5 Mbps.
Download Speeds
Upload Speeds
| Date | Download Speed | Upload Speed | Latency |
|---|---|---|---|
| May 2, 2023 | 4 Mbps | 1 Mbps | n/a ms |
| May 1, 2023 | 7 Mbps | 1 Mbps | n/a ms |
Suddenlink Communications is the 2nd most popular provider in Charleston offering cable internet service. Users have been getting 14 Mbps for download speeds and 1 Mbps for upload speeds over 2 recent tests.
Suddenlink Communications has the 3rd fastest average download speed, the 2nd fastest average upload speed, and the 3rd lowest latency out of all of the providers in Charleston. 100% of users saw download speeds between 10-25 Mbps, and 100% of users saw upload speeds slower than 5 Mbps.
Download Speeds
Upload Speeds
Cox Communications is the 3rd most popular provider in Charleston offering cable internet service. Users have been getting 76 Mbps for download speeds and 62 Mbps for upload speeds over 1 recent tests.
Cox Communications has the fastest average download speed, the fastest average upload speed, and the lowest latency out of all of the providers in Charleston. 100% of users saw download speeds between 50-100 Mbps, and 100% of users saw upload speeds between 50-100 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.