ATSF
| Atchison Topeka & Santa Fe | 3 |
BNSF
| BNSF Railway | 2 |
CN
| Canadian National Railways | 29 |
CNA
| Canadian National Railways | 95 |
CP
| Canadian Pacific Railway | 132 |
CPAA
| Canadian Pacific Railway | 40 |
ETTX
| TTX Company - Autoracks | 4882 |
GTW
| Grand Trunk Western | 28 |
NS
| Norfolk Southern | 3 |
SOO
| Soo Line | 114 |
SOU
| Southern | 9 |
SP
| Southern Pacific | 198 |
SSW
| St Louis Southwestern (Cotton Belt) | 149 |
TTGX
| TTX Company-Autoracks | 17 |