Residents of Columbia have 2 internet providers to choose from. The most popular provider is Xfinity, which offers cable internet service. Over 40 recent tests, our research shows that Xfinity customers have been getting 28 Mbps for download speeds and 11 Mbps for upload speeds. In addition to Xfinity, DSL and fixed wireless internet service is also available from AT&T.
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 |
|---|---|---|---|
| Xfinity Cable | 28 Mbps | 11 Mbps | 29 ms |
| AT&T DSL Fixed Wireless | 10 Mbps | 23 Mbps | 110 ms |
| * Data from speed tests taken in the last 3 months | |||
Xfinity is the most popular provider in Columbia offering cable internet service. Users have been getting 28 Mbps for download speeds and 11 Mbps for upload speeds over 40 recent tests.
Xfinity has the fastest average download speed, the 2nd fastest average upload speed, and the lowest latency out of all of the providers in Columbia. 73% of users saw download speeds between 25-50 Mbps, and 71% of users saw upload speeds between 10-25 Mbps.
Download Speeds
Upload Speeds
AT&T is the 2nd most popular provider in Columbia offering DSL and fixed wireless internet service. Users have been getting 10 Mbps for download speeds and 23 Mbps for upload speeds over 36 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 Columbia. 48% of users saw download speeds slower than 10 Mbps, and 37% of users saw upload speeds slower than 5 Mbps.
Download Speeds
Upload Speeds
| Date | Download Speed | Upload Speed | Latency |
|---|---|---|---|
| September 21, 2023 | 44 Mbps | 59 Mbps | 233 ms |
| August 28, 2023 | 88 Mbps | 26 Mbps | 84 ms |
We’ll run a download test and an upload test to give you the full picture of your internet connection.