Charleston residents have 3 internet providers to choose from. Cox Communications is the most popular provider, offering cable internet service. In our research, we have been seeing 84 Mbps for download speeds and 63 Mbps for upload speeds for Cox Communications customers over 15 recent tests. CenturyLink and Suddenlink Communications also have coverage in Charleston, although they are not as popular as Cox Communications. These providers offer DSL and cable internet service.
See more detailed speed and coverage data below.
| Provider | Download Speed | Upload Speed | Latency |
|---|---|---|---|
| Cox Communications Cable | 84 Mbps | 63 Mbps | 220 ms |
| CenturyLink DSL | 17 Mbps | 1 Mbps | 31 ms |
| Suddenlink Communications Cable | 14 Mbps | 1 Mbps | 49 ms |
| * Data from speed tests taken in the last 3 months | |||
Cox Communications is the most popular provider in Charleston offering cable internet service. Users have been getting 84 Mbps for download speeds and 63 Mbps for upload speeds over 15 recent tests.
Cox Communications has the fastest average download speed, the fastest average upload speed, and the 3rd 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.
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CenturyLink is the 2nd 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 6 recent tests.
CenturyLink has the 2nd fastest average download speed, the 3rd fastest average upload speed, and the 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.
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| Date | Download Speed | Upload Speed | Latency |
|---|---|---|---|
| February 25, 2024 | 19 Mbps | 1 Mbps | 26 ms |
Suddenlink Communications is the 3rd 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 2nd 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.
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We’ll run a download test and an upload test to give you the full picture of your internet connection.