AOK
| Arkansas-Oklahoma Railroad | 1 |
BNSF
| BNSF Railway | 2 |
CO
| Chesapeake & Ohio | 1 |
DODX
| Department Of Defense | 11 |
HTTX
| TTX Company | 1 |
ITTX
| TTX Company | 1 |
KRL
| Kasgro Rail Lines | 16 |
KWUX
| Siemens Power Corporation | 1 |
MP
| Missouri Pacific | 2 |
PTTX
| TTX Company | 4 |
QTTX
| TTX Company | 2 |
RBBX
| Ringling Bros. and Barnum and Bailey | 2 |
RTTX
| TTX Company | 1 |
SBD
| Seaboard System | 3 |
TTHX
| TTX Company - Flat Cars | 9 |