Apple says it offers radio monitoring for 40,000 radio stations from more than 200 countries and regions. Radio Spins data is integrated throughout the Apple Music for Artists experience so artists can see which stations and regions are giving their music air time. The Trends page offers more detailed data, such as the stations that are spinning an artists’ music the most, or which songs from an artists’ catalog are receiving the most plays across all monitored stations.
Source: Apple Music for Artists Adds Radio Monitoring for 40,000+ Stations