From The Dim Future Wiki
Range describes the distance in areas from the source to the target that an action allows or the distance from the source of a continuous effect that is effected. The distance is measured as the shortest distance that only steps from an area to an adjacent area, not including 45° angles. For instance, each cell below is filled with the distance from the area labeled "0". The 0 is also range 0 from itself.
Permanent's ranges define the distance in areas that this card may effect with abilities or continuous effects. For actions the source is the player's leader so range is measured from the leader.