Area code 346 is an overlay serving the Houston metropolitan area alongside 281, 713, and 832. Introduced in 2014, it was designed to meet the demand of one of the fastest-growing and most diverse metro regions in the U.S. The region includes Houston proper as well as surrounding cities like Katy, Pearland, and Sugar Land. Ten-digit dialing is required. Though newer, area code 346 is now a fixture in Houston’s telecommunications landscape and reflects the city’s dynamic economy, global presence, and continued urban expansion. It symbolizes modern connectivity in the energy capital of the U.S.