The range of area codes 600-699 is reserved AT Baja California, Baja California Sur, Chihuahua, Durango, Sinaloa and Sonora. (For other areas, see Area codes in Mexico by code).
The range of area codes 600-699 is reserved AT Baja California, Baja California Sur, Chihuahua, Durango, Sinaloa and Sonora. (For other areas, see Area codes in Mexico by code). (en)