Area code 806 is a telephone area code in the North American Numbering Plan (NANP) serving the state of Texas in the United States. It covers a large geographic area in the Texas Panhandle and parts of the South Plains region. It was established in 1957 as a split from area codes 817 and 915. It covers cities such as Amarillo, Lubbock, Plainview, Canyon, and Hereford.