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Is a Brazilian CPF (local tax ID) required to activate CoreESIM in Brazil?

Updated April 22, 2026

No, a Brazilian CPF (Cadastro de Pessoas Físicas) is not required for CoreESIM activation in Brazil. This is a significant advantage for international travelers. Local Brazilian SIM cards from carriers like Vivo, Claro, or TIM typically mandate CPF registration, a process that is often complex and inaccessible for tourists. CoreESIM operates as a roaming data solution, exempting users from local regulatory requirements such as CPF verification, ensuring straightforward connectivity upon arrival in Brazil.

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