Systems, methods, devices, and computer program products are described for refinement of femtocell coverage area information in a wireless communication system, particularly in context of a femto-proxy architecture. Zones may be defined within a femtocell coverage area using beacon sources, and a zone map of zone signatures may be defined for each zone of the femtocell coverage area, according to macro signatures detected in those zones. The zone map can be used, by access terminals, the femto-proxy system, and/or the macro network, to provide functionality, including reduced power level femtocell discovery and association, enhanced network planning, improved femtocell troubleshooting, etc.