The National Telecommunications and Information Administration (NTIA) has an interactive web page that you can query to list all low-power, class A and translator stations by state.
Here is how the FCC describes these stations:
- Class A stations are former low-power stations that have some interference protection rights not available to low-power stations. They must broadcast three hours of locally-produced program each week and operate much the same as full-power stations.
- Low-Power stations provide opportunities for locally-oriented TV in small communities, which may be in rural or individual communities within larger urban areas. Programming can include satellite-delivered programming, syndicated programs, movies, and various locally-produced programs.
- Translator stations rebroadcast programming from full-power stations to live in regions that are unable to receive the full-power signals because they are too far away or live in the mountains or other remote areas.