ADTRAN Holdings Inc is a leading provider of advanced fiber networking solutions, catering to a wide range of clients including communications service providers, enterprises, and government entities across the globe. With a strong presence in the United States, Germany, the UK, Mexico, and other international markets, ADTRAN specializes in delivering comprehensive fiber access platforms, optical networking, broadband customer premises solutions, and cloud-based management platforms. Additionally, the company offers extensive services and support, including technical assistance, network implementation, and maintenance services, all from its headquarters in Huntsville, Alabama.