For data broadcasting: Microsoft's now defunct DirectBand service (used by MSN Direct) relied on SCA FM subcarriers; Data Broadcasting Corporation's Signal service used SCA for sending real-time stock quotes.
Federal Communications Commission | Clear Channel Communications | subsidiary | Nigerian Television Authority | Tennessee Valley Authority | L-3 Communications | Communications Act 2003 | Rogers Communications | Port Authority of New York and New Jersey | Palestinian National Authority | communications satellite | Discovery Communications | Metropolitan Atlanta Rapid Transit Authority | Massachusetts Bay Transportation Authority | Coalition Provisional Authority | Charter Communications | New York City Housing Authority | Financial Industry Regulatory Authority | Section 230 of the Communications Decency Act | Salem Communications | Port Authority Trans-Hudson | MCI Communications | Financial Services Authority | communications | Reliance Communications | Nuance Communications | Land Transport Authority | Chicago Transit Authority | Adelphia Communications Corporation | Verizon Communications |
KFAE also broadcasts the Washington Talking Book and Braille Library's Evergreen Radio Reading Service to blind and handicapped listeners on its 67kHz subcarrier.
Some utility stations are on other frequency bands, including NOAA Weather Radio, traveler information stations, and the like; other utility-type signals are piggybacked on FM broadcast subcarriers.
Radio Maria Chicago, a Spanish language unit of Radio Maria USA, a Catholic radio network is also broadcast on WOJO's FM subcarrier.