XEFB-AM is a radio station on 630 AM in Monterrey, Nuevo León, Mexico.
Jesús Quintanilla, the original concessionaire, sold XEFB to Emisoras Incorporadas de Monterrey in 1945.
In 1958, XEFB-TV launched, Monterrey's first local station; it is now part of Televisa.
In 2015, Emisoras Incorporadas de Monterrey was replaced by Radio Emisora XHSP-FM as the concessionaire as part of a restructuring of the stations then owned by Grupo Radio México.
[2] GRM merged with corporate cousin Grupo Radio Centro in 2016 sold AM stations in each of Monterrey, Guadalajara, and Mexico City to Acustik.