Investor Resources

Adtran was incorporated under the laws of Delaware in November 1985, and commenced operations in January 1986.

Adtran went public on August 9, 1994 at $18.00 ($4.50 on a split adjusted basis).

Adtran’s fiscal year-end is December 31. Reporting quarters correspond with calendar quarters.

The annual shareholders meeting is usually held in May of each year.

Adtran’s auditors are PricewaterhouseCoopers.

As of December 31, 2021, Adtran had 1,335 full-time employees around the world.

Please see our Management Team page for details.

Please view the Adtran Board of Directors page.

Adtran's corporate headquarters is located in Huntsville, Alabama, in the second largest research park in the United States. We have engineering research and development centers in Huntsville, AL; Portland, OR; and Greifswald and Berlin, Germany. We also have sales and support offices located throughout the U.S. and around the world.

We compete with a number of companies in the markets we serve. In our Access & Aggregation category, key competitors include Calix, Casa Systems, Ciena, CommScope, DZS, Harmonic, Huawei, Nokia, Radisys, Tibit Communications, Vecima Networks and ZTE. In the Subscriber Solutions & Experience category, our primary competitors include Calix, Cisco, CommScope, Hewlett Packard Enterprise, Juniper Networks, Ribbon Communications, Ubiquiti Networks and Zyxel. Competitors of our Services & Support business include Calix, Fujitsu Network Communications and Nokia.

Adtran sells in more than 60 countries with the major markets being North America, Europe, Australia and the Middle East. Customers include a diverse global base of network operators and communications service providers, alternative service providers, such as utilities, municipalities and fiber overbuilders, cable/MSOs, SMBs and distributed enterprises.

Adtran provides hardware and software platforms that enable multi-Gigabit service delivery over fiber to homes and businesses. We offer traditional chassis-based network solutions, such as the Total Access 5000 and hiX 5600, while also accelerating the industry’s transition to open, disaggregated fiber access solutions with our SDX Series platform. ADTRAN offers cloud-managed Wi-Fi gateways and switches that provide a mix of wired and wireless connectivity at the customer premises. Our complete portfolio of broadband access and subscriber connectivity solutions are managed and orchestrated by our Mosaic software suite which simplifies and optimizes the deployment, management and marketing of next generation fiber access networks. ADTRAN also offers a comprehensive portfolio of network design, implementation and cloud-hosted services to assist operators in the deployment of multi-vendor networks while reducing their cost to operate and maintain these networks.