View the publicly visible RadioDNS data provided by broadcasters in the United States:
- A RadioDNS lookup is performed on every radio station listed in the NRSC PI code database (both full service and translator), which will discover all the associated Service Information (SI) files, Services, and Bearers. When a call sign in the PI codes database is found in the RadioDNS directory, it is listed on this web site. If a call sign is found but not associated to a Service, its Service name shall be blank. This means it’s registered in RadioDNS but with incomplete information.
- Service Information (SI) file – SI files are .xml files which includes information about radio stations needed for hybrid radio services.
- Bearers in the context of RadioDNS are channels over which audio is conveyed – there are FM bearers (analog FM audio), HD Radio bearers (main and multicast channel digital audio) and streaming bearers (streaming audio delivered over the internet). Every bearer needs to be associated with a radio station and a Service.
- Services in the context of RadioDNS may be thought of as programs; since some broadcasters use a particular service (program) on multiple stations, the total services count is always less than the total FM bearer count.
NOTE Presentation of this data does not confer any rights of use, which are fully reserved by the respective holders.
- Total Services count
- 798 (number of hybrid radio services resolved from the initial NRSC PI Code Database)
- Total Services with Stream count
- 747 (of those services, the number which include an IP bearer)
- Total FM Bearer count
- 2359 (the number of validated US FM bearers, from both the initial NRSC PI Code Database and resulting hybrid radio services resolved)
- Total HD Radio Bearer count
- 911 (the number of validated US HD Radio bearers, from both the initial NRSC PI Code Database and resulting hybrid radio services resolved)
This page was last updated on Thu Feb 26 2026 13:35:24 GMT+0000 (Coordinated Universal Time)