Area codes 903 and 430

Area code 903 and 430 are telephone area codes in the North American Numbering Plan. It covers the northeastern part of Texas, including cities like Tyler, Longview, and Sherman. Area code 903 was created in 1990 when it was split from area code 214. In 2003, area code 903 was overlaid with area code 430 to provide more phone numbers for the growing region. People living in this area now have to dial ten digits, including the area code, for local calls.