ADTRAN, Inc. supplies innovative network access products that enable today's widespread digital telecommunications applications, including Internet access, telecommuting, corporate connectivity, distance learning, video-conferencing, and teleradiology. Used extensively in the networks of incumbent local exchange carriers (U.S. Regional Bell Operating Companies), independent domestic telcos (GTE), competitive local exchange carriers (CLEC), interexchange carriers, Internet service providers, and private and public enterprises worldwide, ADTRAN products consistently reduce operating costs and improve network performance. ADTRAN also provides custom-designed products for many well-known Original Equipment Manufacturers (OEMs), including Lucent Technologies.

Incorporated in 1985, ADTRAN began operations in 1986 following AT&T's divestiture of the Regional Bell Operating Companies (RBOCs) with restrictions that effectively barred their manufacturing of equipment. These events created an opportunity for companies such as ADTRAN to supply network equipment to the seven RBOCs as well as more than 1,300 independent telephone companies in the United States.

Having firmly established a leading position in the telco arena, ADTRAN adapted those technologies for use in enterprise wide area networks, and quickly gained a significant share of the customer premises equipment (CPE) market. Both telco and CPE product lines have produced rapid, profitable growth, resulting in ADTRAN being selected as a NASDAQ 100 Index stock by the NASDAQ Stock Market.

With over a million ADTRAN-based local loops operating worldwide, ADTRAN has become a leading supplier of local loop access and deployment products for DS3, T1, Digital Subscriber Line (HDSL, HDSL2, SDSL, G.shdsl), Frame Relay, Asynchronous Transfer Mode (ATM), Integrated Services Digital Network (ISDN), and Digital Data Service (DDS) digital services. ADTRAN supplies more than 500 products across these major digital telecommunications technologies, including multiservice access platforms and Integrated Access Devices (IADs) for today's converged voice and data networks. With products for both the carrier and enterprise markets, ADTRAN is uniquely positioned to provide complete end-to-end solutions that produce the greatest network efficiency and lowest possible costs.

ADTRAN is headquartered in Huntsville, Alabama, with sales offices strategically located throughout the United States. The company distributes its products through a network of domestic and international value added resellers and distributors, and is aggressively augmenting those worldwide resources.

According to Dataquest and IDC, ADTRAN currently holds revenue-leading positions in integrated access, Frame Relay/DDS, ISDN extension and HDSL/T1/E1 network and access markets. ADTRAN achieved this industry leadership through emphasis on innovation, advanced technology, and cost management. ISO 9001 and TL9000 certified, ADTRAN employs consistent quality processes from initial product design to the end-testing of every unit delivered.