Question: Where is the company that owns Claro Colombia headquartered?
Context: Claro Americas is part of América Móvil, a Mexican telecom group serving clients in Argentina, Brazil, Chile, Colombia, Costa Rica, the Dominican Republic, Ecuador, El Salvador, Guatemala, Honduras, Nicaragua, Panama, Paraguay, Peru, Puerto Rico, Uruguay.  The company's name means "bright", "clear" or "of course" in Portuguese and Spanish. Grupo Argos S.A is a Colombian conglomerate with large investments in the cement and energy industries.  Its cement company Argos has operations in Colombia, the United States, Panamá, Honduras and the Caribbean.  Celsia, its energy company, owns hydro, thermal, and wind power generation plants in Colombia, Panamá, and Costa Rica and distributes energy to more than 500.000 customers in Colombia.  Grupo Argos also has investments in port facilities and real estate in Colombia. Claro Puerto Rico is the largest Puerto Rican telecommunications services company.  It is headquartered in Guaynabo, Puerto Rico, and has operated for almost a century offering voice, data, long distance, broadband, directory publishing and wireless services for the island residents and businesses.  It was founded by the brothers Behn, Sosthenes and Hernan.  Originally, Puerto Rico Telephone Company eventually spawned ITT Corporation, which was founded by Sosthenes Behn.  The company was a public corporation of the government of Puerto Rico for many years until the majority stakes were acquired by GTE in the mid-1990s.  It was a subsidiary of Verizon Communications until it was fully acquired by América Móvil in 2007. Sinclair Broadcast Group is an American telecommunications company that is owned by the family of company founder Julian Sinclair Smith.  Headquartered in Hunt Valley, Maryland, the company is the second-largest television station operator in the United States (behind Nexstar Media Group) by number of stations, and largest by total coverage; owning and/or operating a total of 173 stations across the country (233 after all currently proposed sales are approved) in over 100 markets (covering 40% of American households), many of which are located in the South and Midwest.  Sinclair also owns four digital multicast networks (Comet, Charge! , Stadium, and TBD) and one cable network (Tennis Channel), and owns or operates four radio stations (all based in the Pacific Northwest region).  Among other non-broadcast properties, Sinclair also owns the professional wrestling promotion Ring of Honor. América Móvil is a Mexican telecommunications corporation headquartered in Mexico City, Mexico.  It is the fourth largest mobile network operator in terms of equity subscribers and one of the largest corporations in the world.  América Móvil is a Forbes Global 2000 company.  A venture of Carlos Slim, América Móvil provides services to 289.4 million wireless subscribers, 34.3 million landlines, 22.6 million broadband accesses and 21.5 million PayTV units as of the end of 2014. Avianca S.A. (acronym in Spanish for "Aerovías del Continente Americano S.A. "), Airways of the American Continent, is a Colombian airline that has been the national airline and flag carrier of Colombia since 5 December 1919, when it was initially registered under the name SCADTA.  It is headquartered in Bogotá, D.C. with its main hub at El Dorado International Airport.  Avianca also comprises a group of seven Latin American airlines, whose operations are combined to function as one airline using a code sharing system.  Avianca is the largest airline in Colombia and second largest in Latin America.  Avianca together with its subsidiaries has the most extensive network of destinations in Latin America.  It is wholly owned by Synergy Group S.A., a South American holding company established by Germán Efromovich and specializing in air transport.  It is listed on the Colombia Stock Exchange. Berkshire Hathaway Inc. is an American multinational conglomerate holding company headquartered in Omaha, Nebraska, United States.  The company wholly owns GEICO, Long & Foster, BNSF Railway, Lubrizol, Fruit of the Loom, Helzberg Diamonds, FlightSafety International, Pampered Chef, and NetJets, and also owns 26.7% of the Kraft Heinz Company, and significant minority holdings in American Express (17.15%), The Coca-Cola Company (9.4%), Wells Fargo (9.9%), IBM (6.9%) and Apple (2.5%).  Since 2016, the company has acquired large holdings in the major US airline carriers and is currently the largest shareholder in United Airlines and Delta Air Lines and a top 3 shareholder in Southwest Airlines and American Airlines.  Berkshire Hathaway has averaged an annual growth in book value of 19.0% to its shareholders since 1965 (compared to 9.7% from the S&P 500 with dividends included for the same period), while employing large amounts of capital, and minimal debt. Telmex is a Mexican telecommunications company headquartered in Mexico City that provides telecommunications products and services in Mexico, Argentina, Chile, Colombia, Brazil (Embratel), Ecuador, Peru, Venezuela and other countries in Latin America.  Telmex is still the dominant fixed-line phone carrier in Mexico.  In addition to traditional fixed-line telephone service, Telmex offers Internet access, data, hosted services and IPTV.  Telmex owns 90 percent of the telephone lines in Mexico City and 80 percent of the lines in the country.  Telmex is a wholly owned subsidiary of América Móvil. Claro Colombia is a Colombian telecommunications operator, owned by Mexican group América Móvil.  Claro is the largest provider of mobile phone services in the country – as of December 2011, 28,818,791 of Colombia's 46,200,421 mobile phone subscribers (62.38%) were with Claro's predecessor, Comcel. Colombia Móvil S.A., marketed under "tigo" trademark (formerly "OLA"), is the third largest mobile phone company in Colombia.  It is headquartered in Bogotá, D.C..
Answer: Mexico City