| Nasdaq: ADTN
ADTRAN, Inc. designs, manufactures and markets solutions and provides services and support for communications networks. The company operates through two segments: Carrier Network Division and Enterprise Networks Division. The Carrier Networks Division provides products and services used by service providers to deliver voice, data and video services to their customers' premises and to mobile network cell sites. These products are located in central exchange offices or remote terminals, serving area interconnect locations and cell site locations for mobile networks. The Enterprise Networks Division segment provides products and services used by enterprise customers to construct voice, data and video networks within the customer's site or among distributed sites. The company's three major product categories are Carrier Systems, Business Networking and Loop Access. Its Carrier Systems products are used by communications service providers to provide data, voice and video services to consumers and enterprises. It includes Broadband Access, Optical, TDM systems and Network Management Solutions. The Business Networking products provide access to telecommunication services and facilitates the delivery of cloud connectivity, enterprise communications and virtual mobility to the small and mid-sized enterprise (SME) market. This category includes Internetworking products and Integrated Access Devices. The Loop Access products are used by carrier and enterprise customers for access to copper-based telecommunications networks. The Loop Access category includes High bit-rate Digital Subscriber Line, Digital Data Service, Integrated Services Digital Network, T1/E1/T3 Channel Service Units/Data Service Units and TRACER fixed-wireless products. The company was founded in November 1985 and is headquartered in Huntsville, AL.