https://www.cnet.com/news/at-ts-fake-5g-e-network-helps-it-take-crown-for-as-fastest-us-carrier/

AT&T's speeds jumped from 34.3 megabytes per second (MBPS) to 40.7 MBPS, according to the data it presented. By comparison, T-Mobile hit 35.4 MBPS, Sprint reached 34.9 MBPS and Verizon was at 33.3 MBPS.

Keep in mind that different tests have yielded different results. Last month, OpenSignal, another firm that tests wireless speeds, said it found that AT&T's controversial  5G E (short for 5G Evolution) clocked in slower than services from Verizon and T-Mobile. However, AT&T dismissed Opensignal's method as flawed.