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