XEJ-AM

XEJ is among Ciudad Juarez's earliest broadcast stations. It signed on the air on May 17, 1930. XEJ received its first concession on December 1, 1932, the first day concessions were awarded for Mexican radio stations. Owned by Buttner Valenzuela y Compañía, XEJ was among the first Mexican radio stations outside of Mexico City. It broadcast on the split frequency of 1015 kilohertz. In 1937, XEJ was sold to Pedro Meneses y Hoyos.

In 1941, the North American Regional Broadcasting Agreement (NARBA) was enacted, moving the frequencies of many AM stations. XEJ switched to its now-familiar frequency of 970 kHz. Meneses built XEJ into a larger organization; his family established XEJ television in 1954 and other stations across Chihuahua. Mexican Broadcasting Co., S.A. became the concessionaire on May 2, 1957, and Radiofónica del Norte replaced MBC in 1977.