Rolando Zubirán Shetler

Servicios Alestra SA de CV provides telecommunications services in Mexico. It offers domestic and international long distance services, data and Internet services as well as local services. Servicios Alestra's telecommunications network interconnects with 198 cities in Mexico. It also offers wireless concessions to provide point-to-point connectivity and point-to-multipoint connectivity primarily in Mexico City, Guadalajara, and Monterrey. The company was founded in 1996 and is headquartered in Garza Garcia, Mexico.

Alestra S de RL de CV operates as a holding company that engages in providing telecommunications services. Its services include data center, cloud, collaboration, security, and mobility, and Internet data services. Alestra was founded in 1997 and is headquatered in Garza Garcia, Mexico.

Ericsson Telecommunicações SA manufactures and sells telecommunication equipment. It offers stored program control telephone exchanges, crossbar exchanges, telephone sets, and transmission equipment for telephone networks. The company was founded by L. M. Ericsson in 1924 and is headquartered in Sao Paulo, Brazil.

Part of Telefonaktiebolaget LM Ericsson, Ericsson Telecom SA de CV manufactures telephone apparatus. The company is based in Tlalnepantla, Mexico.