Main lines: 265,000 lines in use, 123rd in the world (2011).[1] Mobile cellular: 2.7 million, 135th in the world (2012).[1] Telephone system: Fully automatic domestic telephone network; the 1999 agreement to open the market for telecommunications services resulted in rapid growth in mobile-cellular telephone usage while the number of fixed-lines in use declined (2011).[1] Teledensity: 110 per 100 persons (combined) (2011).[1] Satellite earth stations: 2 Intelsat (Atlantic Ocean) (2010).[1] Communication cables: Fibralink submarine cable links to the Americas Region Caribbean Ring System (ARCOS-1) submarine cable in the Dominican Republic and on to the US, parts of the Caribbean, Central and South America; the ALBA-1 fiber-optic submarine cable links Jamaica, Cuba, and Venezuela (2010).[1]