Calling code: +502[1] International call prefix: 00[2] Main lines in use: 665,061 lines (2000) 1.4 million lines (2006) 1.7 million lines, 63rd in the world (2012)[1] Mobile cellular: 663,296 lines (2000) 6.8 million lines (2006) 10.2 million lines, 70% of the population (2007) 20.8 million lines, 46th in the world (2012)[1] Telephone system: fairly modern network centered in Guatemala City; connected to Central American Microwave System,[1] a trunk microwave radio relay system that links the countries of Central America and Mexico with each other.[3] Satellite earth stations: 1 Intelsat (Atlantic Ocean).[1] Communications cables: landing point for both the Americas Region Caribbean Ring (ARCOS-1) and the SAm-1 fiber optic submarine cable systems that together provide connectivity to South and Central America, parts of the Caribbean, and the US (2011).[1] Operators:[citation needed]