6
Domestic: Microwave radio relay, fiber-optic cable, and a domestic satellite system with 40 earth stations serve the trunk network; more than 110,000 pay telephones are installed and mobile telephone use is rapidly expanding; broadband services are gaining ground
International: Country code - 54; landing point for the Atlantis-2, UNISUR, and South America-1 optical submarine cable systems that provide links to Europe, Africa, South and Central America, and US; satellite earth stations - 112; 2 international gateways near Buenos Aires (2007)