AOK
| Arkansas-Oklahoma Railroad | 14 |
BNSF
| BNSF Railway | 71 |
CN
| Canadian National Railways | 5 |
CNA
| Canadian National Railways | 17 |
CP
| Canadian Pacific Railway | 3 |
CPAA
| Canadian Pacific Railway | 1 |
CSX
| CSX Railroad | 2 |
CTTX
| TTX Company - Autoracks | 63 |
ETTX
| TTX Company - Autoracks | 193 |
GTW
| Grand Trunk Western | 5 |
KCS
| Kansas City Southern | 24 |
KCSM
| Kansas City Southern De Mexico | 2 |
NKCR
| Nebraska, Kansas & Colorado RailNet, Inc | 38 |
NS
| Norfolk Southern | 8 |
PW
| Providence and Worcester | 27 |
SFLC
| BNSF Railway | 7 |
SOO
| Soo Line | 6 |
SP
| Southern Pacific | 12 |
SSW
| St Louis Southwestern (Cotton Belt) | 7 |
TTGX
| TTX Company-Autoracks | 868 |
UCRY
| Utah Central | 2 |
WRWK
| Providence & Worchester Railroad | 10 |