AOK
| Arkansas-Oklahoma Railroad | 2 |
BNSF
| BNSF Railway | 19 |
BTTX
| TTX Company - Autoracks | 1 |
CN
| Canadian National Railways | 5 |
CNA
| Canadian National Railways | 6 |
CP
| Canadian Pacific Railway | 1 |
CTTX
| TTX Company - Autoracks | 20 |
ETTX
| TTX Company - Autoracks | 91 |
GTW
| Grand Trunk Western | 1 |
NKCR
| Nebraska, Kansas & Colorado RailNet, Inc | 13 |
NS
| Norfolk Southern | 2 |
PW
| Providence and Worcester | 7 |
SFLC
| BNSF Railway | 2 |
SOO
| Soo Line | 1 |
SP
| Southern Pacific | 4 |
SSW
| St Louis Southwestern (Cotton Belt) | 1 |
TOCX
| TTX Company - Autoracks | 1 |
TTGX
| TTX Company-Autoracks | 409 |
TTUX
| TTX Company | 1 |
UCRY
| Utah Central | 2 |
UP
| Union Pacific Railroad Company | 2 |
WRWK
| Providence & Worchester Railroad | 2 |