This is the National Destination Code(NDC):915 page list. Its detail is as below.
Area code 915 is one of the original 86 area codes created by AT&T and the Bell System in 1947. It originally served western Texas including El Paso. In 2003, area code 915 was split, and some of the phone numbers had to be updated to area code 325 on that date. In 2003, area code 915 was split, and some of the phone numbers had to be updated to area code 432 on that date. Currently, the largest city it serves is El Paso, TX, and it overlaps coverage areas with area code .