Area code 432 is a telephone area code in Texas that covers a large area in the western part of the state, including the cities of Midland, Odessa, Big Spring, and Alpine. It was created on April 5, 2003, along with area code 325, when numbering plan area 915 was split. The 432 area code touches 21 counties, including Ector, Midland, Howard, Val Verde, Andrews, Pecos, Reeves, Gaines, Ward, and Brewster