Adtran

Adtran is an American networking and telecommunications equipment company headquartered in Huntsville, Alabama, and traded on NASDAQ under the ticker ADTN. The company focuses on developing and manufacturing network access equipment for telecommunications service providers, with particular emphasis on fiber optic access and broadband infrastructure.

Adtran's primary products are sold to internet and telecom service providers — including regional carriers, telephone companies, and cable operators — enabling fiber-to-the-home and fiber-to-the-premises connectivity. The company is well known for its GPON equipment and DSL-based access products.