AOK
| Arkansas-Oklahoma Railroad | 4 |
ATSF
| Atchison Topeka & Santa Fe | 8 |
BNSF
| BNSF Railway | 6 |
BTTX
| TTX Company - Autoracks | 3 |
CN
| Canadian National Railways | 11 |
CNA
| Canadian National Railways | 9 |
CP
| Canadian Pacific Railway | 9 |
CPAA
| Canadian Pacific Railway | 4 |
CSX
| CSX Railroad | 2 |
CTTX
| TTX Company - Autoracks | 3 |
ETTX
| TTX Company - Autoracks | 107 |
FEC
| Florida East Coast | 1 |
GTW
| Grand Trunk Western | 10 |
KCS
| Kansas City Southern | 3 |
NS
| Norfolk Southern | 12 |
PW
| Providence and Worcester | 6 |
SFLC
| BNSF Railway | 1 |
SOO
| Soo Line | 4 |
SOU
| Southern | 2 |
SP
| Southern Pacific | 13 |
SSW
| St Louis Southwestern (Cotton Belt) | 8 |
TTGX
| TTX Company-Autoracks | 262 |
TTQX
| TTX Company-Autoracks | 1 |
TTUX
| TTX Company | 5 |