According to the latest Speedtest Intelligence report from Ookla, T-Mobile was the fastest wireless carrier in the U.S. during the fourth quarter of 2023, with a median download speed of 188.96Mbps. This was more than double the median download speeds of second-place Verizon and AT&T. T-Mobile also led in median upload speed and had lower latency compared to its competitors. Ookla also rated T-Mobile as the best for video experience and 5G video score.

For 5G performance, T-Mobile outperformed Verizon and AT&T in both median download speeds and latency. Furthermore, T-Mobile was rated as the fastest mobile operator in 46 states and the District of Columbia during the fourth quarter.