ADTRAN, Inc. provides networking and communications equipment for service providers, cable/multiple system operators, and distributed enterprises in the United States and internationally. The company operates through Network Solutions, and Services & Support segments. It offers fiber to the premises and fiber to the node (FTTN) multi-service access nodes (MSAN); fiber aggregation and FTTN MSAN; network management and subscriber services control and orchestration software; software defined networking -controlled programmable network elements; fiber to the distribution point units; optical line terminals and transport solutions; optical networking edge aggregation; IP digital subscriber line access multiplexers; cabinet and outside-plant enclosures and services; transceivers, cables, and other miscellaneous materials; and other products, software, and services. The company also provides broadband customer premise solutions and point-to-point Ethernet optical network terminals; radio freq