The following speed test took place in three different geographic locations in Utah. Keep in mind that your data speeds could be completely different in your neck of the woods. As for the YouTube test, it was really par for the course for AT&T. You would expect for things to load up a little more quickly with nearly 90 Mbps of internet speed, but it’s still pretty fast. To be fair, AT&T did slow down at the crowded grocery store, but it wasn’t so significant an amount that you’d notice a big difference. And when you factor that AT&T pulled in a confident 87.5 Mbps during a hike, it pretty much seals the deal that AT&T gets our award for the fastest data download speeds until someone outperforms them. From our personal experience, AT&T performed way above expectations.