Residents of Columbia have 4 internet providers to choose from. The most popular provider is CenturyLink, which offers DSL internet service. Over 61 recent tests, our research shows that CenturyLink customers have been getting 29 Mbps for download speeds and 26 Mbps for upload speeds. Besides CenturyLink, residents of Columbia may be able to choose from Verizon, Xfinity and Optimum which offer DSL and cable internet service.
While these are the real speeds we have been seeing in recent tests, there are many factors that affect download and upload speeds, so your actual service may differ.
| Provider | Download Speed | Upload Speed | Latency |
|---|---|---|---|
| CenturyLink DSL | 29 Mbps | 26 Mbps | 13 ms |
| Verizon DSL | 284 Mbps | 246 Mbps | 264 ms |
| Xfinity Cable | 68 Mbps | 16 Mbps | 15 ms |
| Optimum Cable | 301 Mbps | 19 Mbps | 10 ms |
| * Data from speed tests taken in the last 3 months | |||
CenturyLink is the most popular provider in Columbia offering DSL internet service. Users have been getting 29 Mbps for download speeds and 26 Mbps for upload speeds over 61 recent tests.
CenturyLink has the 4th fastest average download speed, the 2nd fastest average upload speed, and the 2nd lowest latency out of all of the providers in Columbia. 37% of users saw download speeds between 10-25 Mbps, and 29% of users saw upload speeds faster than 250 Mbps.
Download Speeds
Upload Speeds
| Date | Download Speed | Upload Speed | Latency |
|---|---|---|---|
| June 17, 2024 | 35 Mbps | 27 Mbps | 6 ms |
| June 3, 2024 | 587 Mbps | 768 Mbps | 332 ms |
Verizon is the 2nd most popular provider in Columbia offering DSL internet service. Users have been getting 284 Mbps for download speeds and 246 Mbps for upload speeds over 36 recent tests.
Verizon has the 2nd fastest average download speed, the fastest average upload speed, and the 4th lowest latency out of all of the providers in Columbia. 100% of users saw download speeds between 250-500 Mbps, and 50% of users saw upload speeds faster than 250 Mbps.
Download Speeds
Upload Speeds
Xfinity is the 3rd most popular provider in Columbia offering cable internet service. Users have been getting 68 Mbps for download speeds and 16 Mbps for upload speeds over 6 recent tests.
Xfinity has the 3rd fastest average download speed, the 4th fastest average upload speed, and the 3rd lowest latency out of all of the providers in Columbia. 75% of users saw download speeds between 50-100 Mbps, and 75% of users saw upload speeds between 10-25 Mbps.
Download Speeds
Upload Speeds
Optimum is the 4th most popular provider in Columbia offering cable internet service. Users have been getting 301 Mbps for download speeds and 19 Mbps for upload speeds over 1 recent tests.
Optimum has the fastest average download speed, the 3rd fastest average upload speed, and the lowest latency out of all of the providers in Columbia. 100% of users saw download speeds between 250-500 Mbps, and 100% of users saw upload speeds between 10-25 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.