AMTK
| Amtrak | 12 |
AOK
| Arkansas-Oklahoma Railroad | 7 |
BNSF
| BNSF Railway | 35 |
BTTX
| TTX Company - Autoracks | 1 |
CMO
| Chicago St Paul Minneapolis & Omaha | 1 |
CN
| Canadian National Railways | 5 |
CNA
| Canadian National Railways | 4 |
CP
| Canadian Pacific Railway | 4 |
CPAA
| Canadian Pacific Railway | 1 |
CTTX
| TTX Company - Autoracks | 20 |
ETTX
| TTX Company - Autoracks | 80 |
GTW
| Grand Trunk Western | 5 |
KCS
| Kansas City Southern | 4 |
NKCR
| Nebraska, Kansas & Colorado RailNet, Inc | 7 |
NS
| Norfolk Southern | 7 |
PW
| Providence and Worcester | 8 |
SFLC
| BNSF Railway | 6 |
SOO
| Soo Line | 1 |
SP
| Southern Pacific | 16 |
SSW
| St Louis Southwestern (Cotton Belt) | 2 |
TOAX
| TTX Company - Autoracks | 4 |
TOCX
| TTX Company - Autoracks | 23 |
TTGX
| TTX Company-Autoracks | 341 |
TTUX
| TTX Company | 2 |
UCRY
| Utah Central | 5 |