BNSF
| BNSF Railway | 2 |
CNA
| Canadian National Railways | 16 |
ETTX
| TTX Company - Autoracks | 5 |
FXE
| Ferromex | 1 |
KCS
| Kansas City Southern | 1 |
NKCR
| Nebraska, Kansas & Colorado RailNet, Inc | 6 |
NS
| Norfolk Southern | 2 |
PW
| Providence and Worcester | 12 |
SFLC
| BNSF Railway | 2 |
SP
| Southern Pacific | 1 |
TTGX
| TTX Company-Autoracks | 1031 |
UP
| Union Pacific Railroad Company | 1 |