Washington, D.C., is the headquarters of the US Postal Service. As of 2001, about 93.8% of households had telephones. In 2000, the District had 7 AM and 13 FM radio stations and 13 television stations. The District had 1,999,870 television households, 70% of which ordered cable. A total of 47,433 Internet were registered in the District in 2000.