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CONTENT Highlights Relevant events Subscribers América Móvil Consolidated Mexico Argentina Brazil Colombia Chile Ecuador Peru Central America Caribbean USA Austria & CEE Currency Exchange Rates Appendix Glossary Carlos García - Moreno Chief Financial Officer carlos.garciamoreno@amovil.com Daniela Lecuona Torras Investor Relations Office daniela.lecuona@america movil.com América Móvil's first quarter of 2021 financial and operating report américa Mexico City , April 27th , 2021 - América Móvil , S.A.B. de C.V. ( " América Móvil " ) [ BMV : AMX ] [ NYSE : AMX , AMOV ] , announced today its financial and operating results for the first quarter of 2021 . ● We added 6.0 million wireless subscribers , one third more than a year before , of which 3.3 million were postpaid and 2.8 million were prepaid . Brazil , Mex ico and Colombia were the main contributors . On the fixed - line platform we added 246 thousand broadband accesses , most of them coming from Colombia , Ecuador and Peru . First quarter revenues of 248 billion pesos were nearly flat in Mexican peso terms from the year - earlier quarter with service revenues declining 1.1 % year - on - year and equipment revenues 0.7 % . At constant exchange rates service revenues expanded 1.2 % year - on - year . Mobile service revenues were up 1.7 % , whereas fixed - line service revenue growth turned slightly positive for the first time in eight quarters . EBITDA rose 5.2 % in Mexican peso terms to 81.7 billion pesos ; at constant exchange rates it grew 8.1 % . Our EBITDA margin increased almost two per centage points from a year before to 32.9 % on the back of strict cost controls across all markets . Our operating profit , 41.1 billion pesos , was up 5.7 % whereas our compre hensive financing cost was down 55 % , resulting in a swing in net profits to 1.8 billion pesos from a 28.9 billion loss a year before . Our cash flow enabled us to cover capital expenditures of 24.9 billion pesos , buy back shares in the amount of 4.4 billion pesos and reduce our net debt by 9.9 billion pesos . At the end of March , our net debt stood at 627 billion pesos ; it was equivalent to 1.77 times EBITDA under IAS 17 . We will host our conference call to discuss 1Q21 financial and operating results on April 28th at 9:00 am Mexico City time . To access the call please log on to www.americamovil.com/investors móvil 1021 6.0M wireless net adds 246k new broadband clients 1Q revenues of MxP 248Bn pesos Service revenues + 1.2 % YoY at constant Fx EBITDA + 8.1 % YoY at constant Fx Operating profit up 5.7 % YoY CapEx of MxP 25Bn pesos Net debt to EBITDA at 1.77x