note: Hungary and Austria jointly manage the cross-border standard-gauge railway connecting Gyor, Sopron, and Ebenfurt (Gysev railroad) a distance of about 101 km in Hungary and 65 km in Austria

Iceland:
0 km

India:
total: 62,915 km (12,307 km electrified; 12,617 km double
track)

broad gauge: 40,620 km 1.676-m gauge

narrow gauge: 18,501 km 1.000-m gauge; 3,794 km 0.762-m and 0.610-m gauge (1998 est.)

Indonesia:
total: 6,458 km

narrow gauge: 5,961 km 1.067-m gauge (101 km electrified; 101 km
double track); 497 km 0.750-m gauge (1995)

Iran:
total: 5,600 km

broad gauge: 94 km 1.676-m gauge

standard gauge: 5,506 km 1.435-m gauge (146 km electrified)