COMMUNICATION CABLE

Cables including central insulators and/or center separators. Each of at least some of the central insulators includes a first wire channel configured to receive a first wire of a wire pair, a second wire channel configured to receive a second wire of the wire pair, and an intermediate portion positioned between the first and second wire channels. Each of at least some of the center separators includes a longitudinally extending central portion as well as first, second, third, and fourth portions extending outwardly from the central portion. Optionally, the first, second, third, and/or fourth portions may include laterally extending through-holes. Optionally, the central, first, second, third, and/or fourth portions may include an air-filled longitudinally extending channel. Central insulators for use with coaxial cables and cables that conduct three-phase signals are also provided. Methods of forming central insulators are also described.