| Rank | Country | dual gauge | Railways |
| Algeria | | total: 3,973 km standard gauge: 2,888 km 1.435-m gauge (283 km electrified) narrow gauge: 1,085 km 1.055-m gauge (2006) |
| American Samoa | | void |
| Andorra | | void |
| Angola | | total: 2,761 km narrow gauge: 2,638 km 1.067-m gauge; 123 km 0.600-m gauge (2006) |
| Anguilla | | void |
| Antarctica | | void |
| Antigua and Barbuda | | void |
| Arctic Ocean | | void |
| Argentina | | total: 31,902 km broad gauge: 20,858 km 1.676-m gauge (141 km electrified) standard gauge: 2,885 km 1.435-m gauge (26 km electrified) narrow gauge: 7,922 km 1.000-m gauge; 237 km 0.750-m gauge (2006) |
| Armenia | | total: 839 km broad gauge: 839 km 1.520-m gauge (828 km electrified) note: some lines are out of service (2006) |
| Aruba | | void |
| Ashmore and Cartier Islands | | void |
| Atlantic Ocean | | void |
| Austria | | total: 6,383 km standard gauge: 5,924 km 1.435-m gauge (3,772 km electrified) narrow gauge: 371 km 1.000-m gauge; 88 km 0.760-m gauge (25 km electrified) (2006) |
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This page was last updated on 27 June, 2009 |
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