Add a Line✅Each account has a maximum limit of 5 linesWe've made it super simple to mix and match plans under a single account. Do lines share data? Nope! Every line uses its own data. How do I manage my lines? You can check data usage and manage your lines through the Boost Infinite app.Updated 21 days ago Global RoamingWelcome CenterDo lines share data?How do I manage my lines?