NuCel (Nu Pagamentos S.A. / Nubank)

Mobile virtual network operator (MVNO) launched by Nubank in April 2025, running on Claro's network infrastructure, entirely managed through the Nubank app (no standalone login portal). Reached 1 million customers by June 2026 (17 months post-launch); claims 5G coverage across 93% of Brazilian territory. Plans extended to users aged 16-18 in 2026. High brand recognition via Nubank but the MVNO itself is still a relatively young, niche product, hence medium rather than high tiers.