The area code 903 is located in Longview, Texas.
Area code 903 serves Longview and a wide stretch of Northeast Texas, covering the piney forests, small towns, and growing hubs across the region. It reaches from the Red River near Oklahoma down toward the Louisiana border, with major routes like I-20 and I-30 connecting communities. Longview sits at the heart of this area, tied to the historic East Texas Oil Field and known for the annual Great Texas Balloon Race. This area code helps identify phone numbers for homes, schools, and businesses across East Texas.
Key cities and communities in area code 903 include:
Created from a split of 214, area code 903 was established in 1990, bringing a dedicated code to Northeast Texas. In 2003, overlay area code 430 was added to the same region, so many numbers now use 10-digit dialing. The 903/430 area covers notable landmarks like Caddo Lake, Lake Texoma, and Lake Palestine, plus key corridors for energy, healthcare, and manufacturing. For Longview and nearby cities, 903 remains a familiar sign of local roots and regional identity.
From oil heritage to outdoor escapes, the 903 footprint highlights classic East Texas life. It spans dense pine forests, historic downtowns, and college and medical centers in cities like Tyler and Longview. Callers may see either 903 or 430 on new phone numbers, but both serve the same communities. This makes it easy to recognize calls and texts from across Northeast Texas.
“Area code 903 was created in 1990 from area code 214 and was overlaid by 430 in 2003.” — North American Numbering Plan Administration (NANPA)