History
XEZR-AM 850 received its concession on April 16, 1962. It was owned by Radiodifusora del Norte, S.A. and broadcast with 1,000 watts as a daytimer. It later began nighttime broadcasts with 250 watts. XEZR later moved to 800 kHz and increased its power to 2 kW day and night. In 2011, XEZR was cleared to migrate to FM.References
Radio stations in Coahuila {{Coahuila-radio-station-stub