If “Other” has been checked in response to the previous question, indicate by check mark which financial statement item the registrant has elected to follow:Item17☐Item 18☐If this is an annual report, indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).Yes☐No☒ TABLE OF CONTENTS INTRODUCTION References in this annual report to “Telefônica Brasil,” “Telefônica,” “we,” “our,” “us” and “the Company” are to Telefônica BrasilS.A. are to Telefônica Brasil S.A. and its consolidated subsidiaries (unless the context otherwise requires). All references in this annualreport to: •“ADRs” are to the American Depositary Receipts evidencing our ADSs;•“ADSs” are to our American Depositary Shares, each representing two of our common shares;•“ANATEL” are toAgência Nacional de Telecomunicações, the Brazilian telecommunications regulatory agency;•“B3” are toB3 S.A. – Brasil, Bolsa, Balcão, the São Paulo stock exchange and a Brazil-based financial market infrastructureprovider;•“BNDES” are to theBanco Nacional de Desenvolvimento Econômico e Social, the Brazilian Development Bank;•“Brazil” are to the Federative Republic of Brazil;•“Brazilian Corporate Law” are to Law No. 6,404 of December 15, 1976, as amended;•“CADE” are to theConselho Administrativo de Defesa Econômica, the Brazilian antitrust and competition authority;•“CDI rate” are toCertificado de Depósito Interbancário, the Certificate for Interbank Deposits;•“Central Bank” are to theBanco Central do Brasil, the Brazilian Central Bank;•“Claro” are toClaro S.A.and its affiliates, a telecommunications service provider in Brazil and our competitor;•“CMN” are to theConselho Monetário Nacional, the Brazilian Monetary Council;•“Common shares” are to the common shares of Telefônica Brasil;•“COPOM” are to the Monetary Policy Committee of the Central Bank(Comitê de Política Monetária do Banco Central doBrasil);•“CTBC Telecom” are toCompanhia de Telecomunicações do Brasil Central;•“CVM” are to theComissão de Valores Mobiliários, the Brazilian Securities Commission;•“Federal District” are toDistrito Federal, the federal district where Brasilia, the capital of Brazil, is located;•“FGV” are to theFundação Getúlio Vargas, a private higher education institution;•“General Telecommunications Law” are to Law No. 9,472/1997, orLei Geral de Telecomunicações, as amended, the law thatregulates the telecommunications industry in Brazil;•“GVT” are to Operating GVT and GVTPar, collectively, formerly wholly-owned subsidiaries of Telefônica Brasil prior to our2016 corporate restructuring;•“GVTPar” are to GVT Participações S.A., a formerly wholly-owned subsidiary of Telefônica Brasil prior to our 2016 corporaterestructuring;•“IASB” are to International Accounting Standards Board;•“IBGE” are toInstituto Brasileiro de Geografia e Estatística, the Brazilian Institute of Geography and Statistics;•“IFRS Accounting Standards” are to International Financial Reporting Standards, as issued by the IASB; •“IGP-DI” are to theÍndice Geral de Preços – Disponibilidade Interna, an inflation index developed by the FGV;•“IGP-M” are to theÍndice Geral de Preços ao Mercado, an inflation index developed by the FGV;•“IOF Tax” are toImposto sobre Operações de Crédito, Câmbio e Seguros, a tax on credit, exchange and insurance transactions;•“IPCA” are toÍndice Nacional de Preços ao Consumidor Amplo, the consumer price index, published by the IBGE;•“NewGeneral Telecommunications Law”are to Law No.13,879/2019,which amended and reformed the GeneralTelecommunications Law;•“NYSE” are to the New York Stock Exchange;•“Oi” or the “Oi Group” are toOi Móvel S.A. – Em Recuperação Judicial, Oi S.A. – Em Recuperação JudicialandOi S.A. – EmRecuperação Judicialand their affiliates, a telecommunications service provider in Brazil and our competitor;•“Oi Agreement” means that certain share purchase agreement dated January 28, 2021, by and amongOi Móvel S.A. – EmRecuperação Judicial, as seller, and the Company, TIM and Claro, as Buyers, andOi S.A. – Em Recuperação JudicialandTelemar Norte Leste S.A. – Em Recuperação Judicial, as intervening parties and guarantors of the seller’s obligations.•“Operating GVT” are to Global Village Telecom S.A., a formerly wholly-owned subsidiary of Telefônica Brasil prior to our 2016corporate restructuring;•“Preferred shares” or “preferred stock” are to the shares of non-voting preferred stock of Telefônica Brasil, which were allconverted into common shares of Telefônica Brasil effective as of after market close on November 20, 2020. Our preferred sharesceased to trade on November 23, 2020;•“Real,” “reais” or R$ are to the Brazilianreal, the official currency of Brazil;•“SEC” are to the U.S. Securities and Exchange Commission;•“SELIC rate” are to Brazil’s benchmark interest rate (Sistema Especial de Liquidação e de Custódia), as set by the COPOM;•“SP Telecom” are toSP Telecomunicações Participações Ltda.;•“STF” are to the Brazilian Federal Supreme C