Telephones - main lines in use:
163.2 million (2007)

Telephones - mobile cellular:
255 million (2007)

Telephone system:
general assessment: a large, technologically advanced, multipurpose communications system
domestic: a large system of fiber-optic cable, microwave radio relay, coaxial cable, and domestic satellites carries every form of telephone traffic; a rapidly growing cellular system carries mobile telephone traffic throughout the country
international: country code - 1; multiple ocean cable systems provide international connectivity; satellite earth stations - 61 Intelsat (45 Atlantic Ocean and 16 Pacific Ocean), 5 Intersputnik (Atlantic Ocean region), and 4 Inmarsat (Pacific and Atlantic Ocean regions) (2000)

Radio broadcast stations:
AM 4,789, FM 8,961, shortwave 19 (2006)

Television - broadcast stations:
2,218 (2006)

Internet country code:
.us

Internet hosts:
316 million (2008); note - the US Internet total host count includes the following top level domain host addresses: .us, .com, .edu, .gov, .mil, .net, and .org