Area Code 505 History:
Area code 505 was put into service. In 2007 area code 505 was split to form area code 575.
Counties in New Mexico within area code 505 include:
Bernalillo County, Cibola County, Los Alamos County, McKinley County, Rio Arriba County, San Juan County, San Miguel County, Sandoval County, Santa Fe County, Taos County, Torrance County, and Valencia County.
Major cities or places in New Mexico within area code 505 include:
Area code 505 serves northwest New Mexico and a portion of the central New Mexico, including the larger cities and communities of Albuquerque, Espanola, Farmington, Gallup, Los Lunas, Rio Rancho, Santa Fe, and South Valley in addition to many smaller communities.