Speed tests T-Mobile recommends the OOKLA speed test, which can download on your device (Google Play Store or Apple App Store) or access from a computer (speedtest.net). Open the speed test app or website, and click Go .
Read moreSpeed tests T-Mobile recommends the OOKLA speed test, which can download on your device (Google Play Store or Apple App Store) or access from a computer (speedtest.net). Open the speed test app or website, and click Go .
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