A map-based system displays a map of spectrum allocation information in a multi-dimensional representation. The system may provide a two-dimensional or three-dimensional area map of a geographic location of interest from an aerial perspective. In another dimension in the elevation direction, allocated spectrum segments may be stacked on the map to provide a representation of spectrum rights allocated in the selected geographical location. Time may provide an additional dimensional aspect to the map. A user may display the spectrum allocation map for a single instant in time, or view a dynamic map that displays the changing spectrum allocation over a time range. A user may also employ search criteria to filter the map display of spectrum allocation information by a specific frequency range, holder/licensee name, channel block, time window, lease or license expiration data, and other criteria.