AOK
| Arkansas-Oklahoma Railroad | 4 |
ATSF
| Atchison Topeka & Santa Fe | 1 |
BNSF
| BNSF Railway | 6 |
CN
| Canadian National Railways | 9 |
CNA
| Canadian National Railways | 13 |
CP
| Canadian Pacific Railway | 5 |
CPAA
| Canadian Pacific Railway | 1 |
CSX
| CSX Railroad | 1 |
CTTX
| TTX Company - Autoracks | 11 |
ETTX
| TTX Company - Autoracks | 152 |
KCS
| Kansas City Southern | 2 |
NS
| Norfolk Southern | 3 |
PW
| Providence and Worcester | 5 |
SOO
| Soo Line | 1 |
SP
| Southern Pacific | 5 |
SSW
| St Louis Southwestern (Cotton Belt) | 2 |
TTGX
| TTX Company-Autoracks | 297 |
TTUX
| TTX Company | 1 |
WRWK
| Providence & Worchester Railroad | 2 |