John Legere blasts “bullsh**” network rankings, says T-Mobile is #1

If there's one thing T-Mobile US CEO John Legere hates almost as much as his competitors, it's the mobile network testing firm RootMetrics.

Like clockwork, RootMetrics releases its new rankings every six months, prompting Legere and his employees to blast the firm and claim that T-Mobile has the best network in the country.

In March 2014, T-Mobile CTO Neville Ray called the results irrelevant and based on old data. “T-Mobile is the clear leader and has been for several months in terms of performance,” he said, GeekWire reported at the time. Six months later, a T-Mobile spokesperson told Ars that RootMetrics reports are based on data that is "months old," and that T-Mobile will "win in their studies in the future as their data catches up to where our network performance is today."