TIM is Brazil's third-largest mobile telecom operator, serving roughly 62 million customers across all Brazilian municipalities. Mobile is the core business, with postpaid plans representing about 65% of subscribers and 70% of mobile service revenues. TIM offers three tiers of mobile service: prepaid (declining), TIM Controle (a hybrid plan used to migrate prepaid customers up the value chain), and postpaid (monthly billed with larger data packages and bundled streaming services). TIM's highest-tier postpaid plans bundle Netflix, Disney+, HBO, and other streaming platforms, which TIM uses to retain high-value customers and grow ARPU. Beyond mobile, TIM offers TIM UltraFibra, a fiber broadband service with about 850,000 connections across 302 cities, operated through a partnership with I-Systems, which TIM is in the process of acquiring outright. TIM also has a growing B2B and IoT segment targeting agribusiness, logistics, utilities, and mining, and in early 2026 acquired V8.Tech to expand into cloud and managed services for enterprise clients. TIM's revenue model centers on recurring postpaid subscription fees, with growth driven by migrating prepaid customers to postpaid, annual price increases on existing plans, and upselling customers to higher-tier bundles. TIM claims the highest mobile ARPU among Brazilian operators, with blended ARPU of roughly R$33 and postpaid ARPU of roughly R$55 (excluding M2M). TIM also monetizes its customer base through a mobile advertising platform, TIM Ads, and ancillary partnerships in health, insurance, and energy.