AOK
| Arkansas-Oklahoma Railroad | 3 |
ATSF
| Atchison Topeka & Santa Fe | 2 |
BNSF
| BNSF Railway | 16 |
BTTX
| TTX Company - Autoracks | 5 |
CN
| Canadian National Railways | 1 |
CNA
| Canadian National Railways | 4 |
CP
| Canadian Pacific Railway | 12 |
CPAA
| Canadian Pacific Railway | 3 |
ETTX
| TTX Company - Autoracks | 30 |
FEC
| Florida East Coast | 1 |
GTW
| Grand Trunk Western | 4 |
KCS
| Kansas City Southern | 6 |
NS
| Norfolk Southern | 6 |
SOO
| Soo Line | 6 |
SP
| Southern Pacific | 2 |
SSW
| St Louis Southwestern (Cotton Belt) | 1 |
TTGX
| TTX Company-Autoracks | 61 |