CCKX
| CCKX Incorporated | 1 |
CNW
| Chicago & Northwestern | 1 |
DODX
| Department Of Defense | 5 |
ELKX
| Elkem Metals Company | 1 |
ELP
| ELP | 1 |
GVSR
| Galveston Railroad L.P. | 5 |
ITTX
| TTX Company | 1 |
KRL
| Kasgro Rail Lines | 2 |
PTTX
| TTX Company | 1 |
SP
| Southern Pacific | 2 |
TTEX
| TTX Company - Articulated Flat Cars (TOFC/COFC) | 3 |
UP
| Union Pacific Railroad Company | 4 |
VRCX
| Vortex Recycling | 1 |
WP
| Western Pacific | 1 |