While Cox advertises speeds from 100Mbps to 2,000Mbps, Reviews.org speed test data shows that the average Cox download speed is 242.63Mbps. That makes Cox the third-fastest internet provider in the country.
Cox’s average upload speed is 43.24Mbps, which is fast for upload speed. And its latency is decent, too, at a cool 21-and-a-half milliseconds. (That beats out even some popular fiber providers.) All in all, Cox Internet’s speeds are reasonably competitive, especially for a cable internet brand.