Area code 915 serves far western Texas, including the city of El Paso and surrounding areas such as Fort Bliss and Horizon City. It is one of the original area codes established in 1947 and once covered a much larger area before being split to create area codes 432 and 325. The 915 region is unique in Texas, both geographically and culturally, due to its proximity to the U.S.–Mexico border. El Paso is a key military, trade, and cultural hub, and 915 has become synonymous with borderland identity and pride. The area code is widely used in local branding and has remained a standalone identifier for West Texas.