XHRPO received its concession in 1963 as XERPO-AM 710. It was owned by Horacio Niño Medina and later by Sistema de Radiodifusión del Sureste, S.A.
It was sold to Grupo Radio México in 1994. On April 30, 2021, La Z ceased broadcasting after Grupo Radio Centro, Grupo Radio México's successor, reached a deal to sell XHRPO-FM to El Heraldo de México.