AEQX
| ATEL Equipment Corporation | 2 |
ALS
| Alton & Southern Railway | 1 |
AOK
| Arkansas-Oklahoma Railroad | 3 |
CSS
| Chicago South Shore And South Bend | 1 |
FTTX
| TTX Company | 3 |
HTTX
| TTX Company | 2 |
IC
| Illinois Central | 1 |
ITTX
| TTX Company | 2 |
KRL
| Kasgro Rail Lines | 2 |
MP
| Missouri Pacific | 11 |
NS
| Norfolk Southern | 1 |
PEYX
| Transportation Technology Services Inc | 1 |
PTTX
| TTX Company | 5 |
QTTX
| TTX Company | 3 |
SP
| Southern Pacific | 3 |
TZPR
| Tazewell & Peoria Railroad | 1 |
UP
| Union Pacific Railroad Company | 4 |
XTTX
| TTX Company | 1 |