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North American area code 505 is a state of New Mexico telephone area code which was one of the original area codes established in October, 1947. Until October 7, 2007, it served the entire state. It currently serves the northwestern and central portions of the state.
The map to the right is clickable, click on any of the area codes on the map to go to the area code for that region.
Due to the increasing demand for new numbers, area code 505 was split on October 7, 2007. Northwestern and central New Mexico, including the Albuquerque metropolitan area, Santa Fe, and Farmington, continue to be served by the 505 area code, while the remainder of the state switched to area code 575. The issue was decided in 2006 by vote of the New Mexico Public Regulation Commission, with a 3-2 majority in favor of allowing the Albuquerque area to keep the old area code.
The question of how to implement a new area code was a contentious one. The need for a new code had been clear since at least 2000, but the PRC's initial votes for Albuquerque and Santa Fe to switch to a new area code and the rest of the state to keep the old 505 area code (including the Farmington and Gallup areas that are now part of the current 505 area code) were met with vocal opposition and even death threats. Amid heightening tensions between the urban and rural areas of the state, the commission eventually chose to put off the decision until 2006 after a new plan to conserve numbers made the immediate addition of a new code unnecessary.
|New Mexico area codes: 505, 575|
|West: 928||area code 505||East: 575|
|Arizona area codes: 480, 520, 602, 623, 928|
|Colorado area codes: 303, 719, 720, 970|