Nick 
Cable’s three public MVNOs added ~904,000 mobile lines in Q2 2026, more than AT&T and Verizon’s postpaid phone net adds combined. Spectrum Mobile is now the largest US MVNO at 12.5 million lines; Boost shrank. Data, charts and CSV inside.
Plain-language definitions, the US players in each lane, what the contracts contain, and a decision rule for first-time MVNOs.
Spectrum Mobile, Xfinity Mobile and Optimum Mobile by the numbers, how the Verizon deals work, the T-Mobile business pact, Charter–Cox, and why it matters to wholesale.
Routes to market, realistic costs and timelines, the FCC checklist, and what recent US launches and failures teach.