ATSF
| Atchison Topeka & Santa Fe | 2 |
BNSF
| BNSF Railway | 3 |
CN
| Canadian National Railways | 4 |
CNA
| Canadian National Railways | 3 |
CP
| Canadian Pacific Railway | 1 |
CPAA
| Canadian Pacific Railway | 4 |
GTW
| Grand Trunk Western | 3 |
NS
| Norfolk Southern | 1 |
SOO
| Soo Line | 1 |
SP
| Southern Pacific | 7 |
TTGX
| TTX Company-Autoracks | 302 |