CenturyLink Speed Test

Real average speeds in United States based on 187 verified measurements.

Fast

Avg Download

248

Mbps

Avg Upload

147

Mbps

Avg Ping

47

ms

Measurements

187

real users

Test your CenturyLink speed

Compare your connection to the CenturyLink average and contribute to the index.

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CenturyLink vs Other United States ISPs

How CenturyLink compares to competing ISPs in United States.

Frontier 181 tests
Avg Download 415 Mbps +167 Mbps faster Compare →
Google Fiber 92 tests
Avg Download 411 Mbps +163 Mbps faster Compare →
Optimum 185 tests
Avg Download 387 Mbps +139 Mbps faster Compare →
Xfinity (Comcast) 1,553 tests
Avg Download 355 Mbps +107 Mbps faster Compare →
Cox 336 tests
Avg Download 344 Mbps +96 Mbps faster Compare →

About CenturyLink Speed Test Data

The average CenturyLink download speed is 248 Mbps, based on 187 real speed tests run by CenturyLink customers. The fastest recorded speed was 2236 Mbps, and the best ping was 4 ms.

Speeds vary widely based on your specific plan, location, time of day, and whether you're connected via ethernet or Wi-Fi. If your result is significantly below the average, try restarting your router, switching to ethernet, or contact CenturyLink support.

These statistics are updated continuously as CenturyLink customers run speed tests on InternetSpeedTest.net. Click "Run Speed Test" to measure your CenturyLink connection and contribute to the data.