| Name |
Major stations |
Length (km) |
Comments |
| Shinkansen lines |
| JR West |
| Sanyō Shinkansen | [Hiroshima] - Shin-Iwakuni - Tokuyama - Shin-Yamaguchi - Asa - Shin-Shimonoseki - [Kokura] | 159.5 |
|
| JR railway lines |
| JR Kyūshū |
| Sanyō Hon | Shimonoseki - [Moji] | 3.1 |
|
| JR West |
| Gantoku | Iwakuni - Kawanishi - Kushigahama - Tokuyama | 43.7 |
|
| Mine | Asa - Mine - Nagato-shi | 46.0 |
|
| Onoda | Ubeshinkawa - Inō - Suzumeda - Onoda | 11.6 |
|
| Onoda (Motoyama branch) | Suzumeda - Nagato-Motoyama | 2.3 |
|
| Sanin Hon | [Masuda] - Nagato-shi - Hatabu - Shimonoseki | 142.9 |
|
| Sanin Hon (Senzaki branch) | Nagato-shi - Senzaki | 2.2 |
|
| Sanyō Hon | [Ōtake] - Iwakuni - Kushigahama - Tokuyama - Hōfu - Shin-Yamaguchi - Ube - Onoda - Asa - Shin-Shimonoseki - Hatabu - Shimonoseki | 184.6 |
|
| Ube | Shin-Yamaguchi - Ubeshinkawa - Inō - Ube | 33.2 |
|
| Yamaguchi | Shin-Yamaguchi - Yamaguchi - [Tsuwano] | 57.8 |
|
| Non JR railway lines |
| Nishikigawa |
| Nishikigawa Seiryū | Iwakuni - Kawanishi - Mishō - Nishikichō | 32.7 |
|