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Lines in use: 7.936 million (2007)
Mobile cellulars: 33.941 million (2007)
List of Country Calling Codes at Wikipedia
Colombia Satellite Telephone Access
Telephone system: general assessment: modern system in many respects; telecommunications sector liberalized during the 1990s; multiple providers of both fixed-line and mobile-cellular services; fixed-line connections stand at about 18 per 100 persons; mobile cellular usage is about 75 per 100 persons; competition among cellular service providers is resulting in falling local and international calling rates and contributing to the steep decline in the market share of fixed line services
domestic: nationwide microwave radio relay system; domestic satellite system with 41 earth stations; fiber-optic network linking 50 cities
international: country code - 57; submarine cables provide links to the US, parts of the Caribbean, and Central and South America; satellite earth stations - 10 (6 Intelsat, 1 Inmarsat, 3 fully digitalized international switching centers) (2007)
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