Telmex is a major telecommunications company in Mexico, providing a wide range of services including fixed-line and mobile telephony, internet, and television. Founded in 1947, it has played a significant role in the development of the country's communication infrastructure. The company is a subsidiary of América Móvil, which is one of the largest telecommunications firms in the world. Telmex serves millions of customers across Mexico, offering various plans and packages to meet the needs of both residential and business clients.