Railway Operators: 東日本旅客鉄道 (80.9 %), 北海道旅客鉄道 (13.5 %), 東日本旅客鉄道 (JR East) (0.5 %), N/A (5.1 %)
Railway Users: passenger traffic (86.5 %), mixed traffic (8.7 %), N/A (4.8 %)
Electrification: 25000 V / 50 Hz AC (99.9 %), 20000 V / 50 Hz AC (0.1 %)
Structures: 335.2 km in tunnels (40.7 %), 433 km on bridges (52.5 %), 2.5 km on embankments (0.3 %), 4.7 km in cuttings (0.6 %), 48.7 km on ground level (5.9 %)