Abstract: A communication cable formed by cabling units such that each two adjacent units have different twist pitches, each unit including insulated wire pairs twisted together. A twist pitch P.sub.i of insulated wire pair T.sub.i selected among insulated wire pairs constituting a unit U.sub.i, and a twist pitch P.sub.j of insulated wire pair T.sub.j selected among insulated wire pairs constituting a unit U.sub.j, are different. Twist pitches P.sub.i and P.sub.j are selected from a region which satisfies expression (1) and either (2) or (3). Twist pitch P.sub.i and twist pitch P.sub.k of insulated wire pair T.sub.k selected among insulated wire pairs constituting a unit U.sub.k, are selected from a region which satisfies expression (4) where twist pitches P.sub.i and P.sub.k are in compliance with prior conditions given by (4).