Area code 505 serves northwestern and central New Mexico, including Albuquerque, Santa Fe, and Farmington. Originally the area code for the entire state when introduced in 1947, it was split in 2007 by area code 575. The 505 region includes New Mexico’s most populous cities and is rich in Native American, Hispanic, and Anglo cultures. Ten-digit dialing is required. Area code 505 is a cultural touchstone for the state, representing both ancient traditions and contemporary urban growth. It remains a widely recognized code, used in art, media, and identity throughout the Land of Enchantment.