ATSF
| Atchison Topeka & Santa Fe | 8 |
BNSF
| BNSF Railway | 5 |
CN
| Canadian National Railways | 1 |
CNA
| Canadian National Railways | 1 |
CP
| Canadian Pacific Railway | 4 |
CPAA
| Canadian Pacific Railway | 3 |
GTW
| Grand Trunk Western | 4 |
NS
| Norfolk Southern | 1 |
SOO
| Soo Line | 1 |
SP
| Southern Pacific | 5 |
TTGX
| TTX Company-Autoracks | 64 |