The area code 409 is located in Beaumont, Texas.
Area code 409 serves Southeast Texas, centered on Beaumont, Texas, near the Louisiana border and the Gulf Coast. It covers key parts of the “Golden Triangle,” a region known for industry, ports, and rich bayou landscapes. Established in 1983 as a split from 713, this area code supports local phone numbers for communities tied by the Sabine-Neches Waterway and the Coastal Bend. It operates on Central Time and includes both landline and mobile numbers under the North American Numbering Plan.
Major cities and communities in area code 409 include:
This area code also reaches parts of Jefferson and Orange counties, plus portions of Hardin, Galveston, and Chambers counties, connecting refineries, ports, beaches, and pine forests. Landmarks within its footprint include the Port of Beaumont, the Port of Port Arthur, Galveston Island, the Bolivar Peninsula, and the nearby Big Thicket National Preserve. From barrier islands to ship channels, 409 covers a broad slice of Texas culture and commerce.
“The 1900 Galveston hurricane remains the deadliest natural disaster in U.S. history, with an estimated 6,000–12,000 deaths.” (NOAA)
Historically, 409 lost territory when area codes 979 (1999) and 936 (2000) were created, narrowing its focus to the upper Gulf Coast and the Golden Triangle. Today, 409 phone numbers are common for petrochemical hubs, port operations, healthcare, and tourism across Galveston and Beaumont–Port Arthur–Orange. The mix of industrial power, coastal history, and protected wildlands makes this area code distinctive in Texas. Whether you’re calling a refinery, a beach hotel, or a piney-woods town, 409 signals Southeast Texas.