Cox Speed Test

Real average speeds in United States based on 224 verified measurements.

Fast

Avg Download

337

Mbps

Avg Upload

83

Mbps

Avg Ping

27

ms

Measurements

224

real users

Test your Cox speed

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

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Cox vs Other United States ISPs

How Cox compares to competing ISPs in United States.

Frontier 130 tests
Avg Download 430 Mbps +93 Mbps faster Compare →
Google Fiber 76 tests
Avg Download 370 Mbps +33 Mbps faster Compare →
Optimum 96 tests
Avg Download 369 Mbps +32 Mbps faster Compare →
Xfinity (Comcast) 930 tests
Avg Download 352 Mbps +15 Mbps faster Compare →
Spectrum (Charter) 976 tests
Avg Download 330 Mbps -7 Mbps slower Compare →

About Cox Speed Test Data

The average Cox download speed is 337 Mbps, based on 224 real speed tests run by Cox customers. The fastest recorded speed was 2173 Mbps, and the best ping was 7 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 Cox support.

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