AMTK
| Amtrak | 2 |
CGW
| Chicago Great Western | 1 |
CP
| Canadian Pacific Railway | 1 |
CSX
| CSX Railroad | 1 |
FEC
| Florida East Coast | 1 |
ITTX
| TTX Company | 4 |
KRL
| Kasgro Rail Lines | 2 |
MSTL
| Minneapolis & St Louis | 1 |
NS
| Norfolk Southern | 1 |
NW
| Norfolk & Western | 1 |
OTTX
| TTX Company | 1 |
QTTX
| TTX Company | 3 |
RTTX
| TTX Company | 5 |
TTEX
| TTX Company - Articulated Flat Cars (TOFC/COFC) | 2 |
UP
| Union Pacific Railroad Company | 22 |
XTTX
| TTX Company | 1 |