Mobile communication emerged as a dominant channel for networked teenagers. While some theorists celebrate possibilities for autonomy, others are concerned that the increased reliance on mobile-based communication leads to disparities in digital skill and status replication. We examined how mobile-mediated behavior among teens interacted with the characteristics of socio-demographics and mobile access to predict (1) levels of diverse use and skill and (2) consequences of skill/use differences (n = 552). Findings revealed that skill/use disparities were manifested based on race, and such variations were associated with status of parents in interaction with mobile phone ownership. Instrumental use and content/creation-based skill had significant impacts on public involvement among teens. Our data have implications for understanding how social backgrounds incubate mobile-based disparities in light of enabling teens’ life chances.