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v3.25.1

Basis of Preparation of the Consolidated Financial Statements and Summary of Significant Accounting Policies and Practices, Equity Interest in Most Significant Subsidiaries (Details) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2024 MXN ($) $ / shares | Dec. 31, 2023 MXN ($) $ / shares | Dec. 31, 2022
Subsidiaries [Abstract] |  |  |  |
Cumulative index |  | 7,708.6829 |  |
Percentage of annual basis index |  | 117.80% |  |
Cumulative Translation Adjustment [Member] |  |  |  |
Subsidiaries [Abstract] |  |  |  |
Closing exchange rate | $ / shares |  | 0.0196 | 0.0209 |
Foreign Subsidiaries [Member] |  |  |  |
Subsidiaries [Abstract] |  |  |  |
Consolidated operating revenues |  | 61.00% | 60.00% | 63.00%
Percentage of consolidated total assets |  | 65.00% | 65.00% |
Netherlands [Member] | America Movil B.V. [Member] |  |  |  |
Subsidiaries [Abstract] |  |  |  |
Percentage of equity interest | [1] | 100.00% | 100.00% |
Dominican Republic [Member] |  |  |  |
Subsidiaries [Abstract] |  |  |  |
Closing exchange rate |  | 0.3301 | 0.2893 |
Dominican Republic [Member] | Compania Dominicana de Telefonos, S.A. ("Codetel") [Member] |  |  |  |
Subsidiaries [Abstract] |  |  |  |
Percentage of equity interest | [2] | 100.00% | 100.00% |
Mexico [Member] | Sercotel, S.A. de C.V. [Member] |  |  |  |
Subsidiaries [Abstract] |  |  |  |
Percentage of equity interest | [1] | 100.00% | 100.00% |
Mexico [Member] | Radiomovil Dipsa S.A. de C.V. and subsidiaries ("Telcel") [Member] |  |  |  |
Subsidiaries [Abstract] |  |  |  |
Percentage of equity interest | [2] | 100.00% | 100.00% |
Mexico [Member] | AMX International Mobile S.A. de C.V. [Member] |  |  |  |
Subsidiaries [Abstract] |  |  |  |
Percentage of equity interest | [1] | 100.00% | 100.00% |
Mexico [Member] | Telefonos de Mexico, S.A.B. de C.V [Member] |  |  |  |
Subsidiaries [Abstract] |  |  |  |
Percentage of equity interest | [2] | 100.00% | 98.80% |
Puerto Rico [Member] | Puerto Rico Telephone Company, Inc. [Member] |  |  |  |
Subsidiaries [Abstract] |  |  |  |
Percentage of equity interest | [2] | 100.00% | 100.00% |
Honduras [Member] |  |  |  |
Subsidiaries [Abstract] |  |  |  |
Closing exchange rate |  | 0.7948 | 0.6819 |
Honduras [Member] | Servicios de Comunicaciones de Honduras, S.A. de C.V. ("Sercom Honduras") [Member] |  |  |  |
Subsidiaries [Abstract] |  |  |  |
Percentage of equity interest | [2] | 100.00% | 100.00% |
Brazil [Member] |  |  |  |
Subsidiaries [Abstract] |  |  |  |
Closing exchange rate |  | 3.2731 | 3.4895 |
Brazil [Member] | Claro S.A. [Member] |  |  |  |
Subsidiaries [Abstract] |  |  |  |
Percentage of equity interest | [2] | 99.60% | 99.60% |
Brazil [Member] | Claro NXT Telecomunicacoes, S.A. [Member] |  |  |  |
Subsidiaries [Abstract] |  |  |  |
Percentage of equity interest | [2] | 100.00% | 100.00% |
Guatemala [Member] |  |  |  |
Subsidiaries [Abstract] |  |  |  |
Closing exchange rate |  | 2.6301 | 2.1584 |
Guatemala [Member] | Telecomunicaciones de Guatemala, S.A. ("Telgua") [Member] |  |  |  |
Subsidiaries [Abstract] |  |  |  |
Percentage of equity interest | [2] | 99.30% | 99.30% |
Guatemala [Member] | Claro Guatemala, S.A. [Member] |  |  |  |
Subsidiaries [Abstract] |  |  |  |
Percentage of equity interest | [2] | 100.00% | 100.00% |
Nicaragua [Member] |  |  |  |
Subsidiaries [Abstract] |  |  |  |
Closing exchange rate |  | 0.5534 | 0.4613 |
Nicaragua [Member] | Empresa Nicaraguense de Telecomunicaciones, S.A. ("Enitel") [Member] |  |  |  |
Subsidiaries [Abstract] |  |  |  |
Percentage of equity interest | [2] | 99.60% | 99.60% |
El Salvador [Member] | Compania de Telecomunicaciones de El Salvador, S.A. de C.V. ("CTE") [Member] |  |  |  |
Subsidiaries [Abstract] |  |  |  |
Percentage of equity interest | [2] | 95.90% | 95.80% |
Colombia [Member] |  |  |  |
Subsidiaries [Abstract] |  |  |  |
Closing exchange rate |  | 0.0046 | 0.0044 |
Colombia [Member] | Comunicacion Celular, S.A. ("Comcel") [Member] |  |  |  |
Subsidiaries [Abstract] |  |  |  |
Percentage of equity interest | [2] | 99.40% | 99.40% |
Ecuador [Member] | Consorcio Ecuatoriano de Telecomunicaciones, S.A. ("Conecel") [Member] |  |  |  |
Subsidiaries [Abstract] |  |  |  |
Percentage of equity interest | [2] | 100.00% | 100.00% |
Argentina [Member] |  |  |  |
Subsidiaries [Abstract] |  |  |  |
Reserve of exchange differences on translation | $ |  | $ (113,191,350) | $ (164,975,378) |
Closing exchange rate | [3] | 0.0196 | 0.0209 |
Argentina [Member] | Impact of Application of Hyperinflation Adjustments in 2018 [Member] |  |  |  |
Subsidiaries [Abstract] |  |  |  |
Cumulative inflation period |  | 3 years |  |
Cumulative inflation percentage |  | 100.00% |  |
Argentina [Member] | AMX Argentina, S.A. [Member] |  |  |  |
Subsidiaries [Abstract] |  |  |  |
Percentage of equity interest | [2] | 100.00% | 100.00% |
Paraguay [Member] |  |  |  |
Subsidiaries [Abstract] |  |  |  |
Closing exchange rate |  | 0.0026 | 0.0023 |
Paraguay [Member] | AMX Paraguay, S.A. [Member] |  |  |  |
Subsidiaries [Abstract] |  |  |  |
Percentage of equity interest | [2] | 100.00% | 100.00% |
Uruguay [Member] |  |  |  |
Subsidiaries [Abstract] |  |  |  |
Closing exchange rate |  | 0.46 | 0.4329 |
Uruguay [Member] | AM Wireless Uruguay, S.A.[Member] |  |  |  |
Subsidiaries [Abstract] |  |  |  |
Percentage of equity interest | [2] | 100.00% | 100.00% |
Peru [Member] |  |  |  |
Subsidiaries [Abstract] |  |  |  |
Closing exchange rate |  | 5.3762 | 4.5498 |
Peru [Member] | America Movil Peru, S.A.C. [Member] |  |  |  |
Subsidiaries [Abstract] |  |  |  |
Percentage of equity interest | [2] | 100.00% | 100.00% |
Chile [Member] |  |  |  |
Subsidiaries [Abstract] |  |  |  |
Closing exchange rate |  | 0.0203 | 0.0193 |
Chile [Member] | Claro Chile, SpA [Member] |  |  |  |
Subsidiaries [Abstract] |  |  |  |
Percentage of equity interest | [4] | 94.90% | 50.00% |
Austria [Member] | Telekom Austria AG [Member] |  |  |  |
Subsidiaries [Abstract] |  |  |  |
Percentage of equity interest | [2] | 60.60% | 58.40% |
Austria [Member] | EuroTeleSites AG and Subsidiaries [Member] |  |  |  |
Subsidiaries [Abstract] |  |  |  |
Percentage of equity interest | [5] | 57.00% | 57.00% |
[1] | Holding companies.
[2] | Operating companies of mobile and fixed services.
[3] | Year-end rates are used for the translation of revenues and expenses if IAS 29 “Financial Reporting in Hyperinflationary Economies” is applied.
[4] | Joint venture until October 31, 2024 (see note 12b).
[5] | Company spun-off from Telekom Austria AG on September 22, 2023.

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