What is what area code is 505?

Area code 505 serves the state of New Mexico in the United States. It covers a large portion of the state, including major cities like Albuquerque, Santa Fe, and Farmington. Due to population growth and increased demand for phone numbers, area code 505 was split, and in 2007, the northwestern and southeastern parts of the state were assigned the new area code 575. Area code 505 now primarily serves the north-central portion of the state, including the Albuquerque metropolitan area.