Network coverage in the US Trax Play connects to T-Mobile's 2G network in the United States. Please click on this link to check T-Mobile's network in your area. Trax Play will work wherever T-Mobile's coverage is good. Related articles The difference between Trax and Trax Play Does Trax Play have a microphone? Travelling with Trax Play Where does Trax Play work? What does LIVE tracking mean?