Alamogordo, NM is served by area code 575. Area code 575 was put into service on October 7, 2007 and was created from a split of area code 505.
In addition to Alamogordo, NM area code 575 serves eastern and southern New Mexico including the larger cities and communities of Alamogordo, Carlsbad, Clovis, Deming, Hobbs, Las Cruces, Roswell, and Socorro in addition to many smaller communities within the area code 575 service area.
Alamogordo, NM is located in Otero County and observes the Mountain Time Zone. View our Times by Area Code tool.