Corporate Governance

The corporate governance hotline is available to report any accounting, auditing or internal controls concerns that you might have, as well as any issues arising under the Company's Code of Business Conduct and Ethics or other matters that you wish to communicate to the Company's Audit Committee or to the Board of Directors. Please leave us a message stating your concerns and provide details to enable the Company to investigate your report. You may submit your report anonymously if you choose. If your report is not anonymous, please leave your contact information so that we can follow up with you if necessary. All communications are treated as confidential.

You can contact the hotline by one of three methods:

1. By mailing a written description of the matter to the following post office box: ADTRAN, Inc. Hotline P.O. Box 5765 Huntsville, AL 35814 
2. By sending a written description of the matter to the designated e-mail address: hotline@adtran.com 
3. By calling the following hotline number and leaving a message describing the matter: Local: 963-6600 Toll-free: 1-888-723-8726  (1-888-7ADTRAN).