AOK
| Arkansas-Oklahoma Railroad | 21 |
ATSF
| Atchison Topeka & Santa Fe | 4 |
BNSF
| BNSF Railway | 19 |
BTTX
| TTX Company - Autoracks | 8 |
CMO
| Chicago St Paul Minneapolis & Omaha | 2 |
CN
| Canadian National Railways | 15 |
CNA
| Canadian National Railways | 22 |
CP
| Canadian Pacific Railway | 27 |
CPAA
| Canadian Pacific Railway | 3 |
CSX
| CSX Railroad | 2 |
CTTX
| TTX Company - Autoracks | 8 |
ETTX
| TTX Company - Autoracks | 275 |
FEC
| Florida East Coast | 2 |
GTW
| Grand Trunk Western | 10 |
KCS
| Kansas City Southern | 1 |
NKCR
| Nebraska, Kansas & Colorado RailNet, Inc | 2 |
NOKL
| Northwestern Oklahoma | 1 |
NS
| Norfolk Southern | 21 |
PW
| Providence and Worcester | 7 |
SOO
| Soo Line | 11 |
SOU
| Southern | 1 |
SP
| Southern Pacific | 15 |
SSW
| St Louis Southwestern (Cotton Belt) | 17 |
TOAX
| TTX Company - Autoracks | 4 |
TTGX
| TTX Company-Autoracks | 448 |
TTUX
| TTX Company | 1 |
UP
| Union Pacific Railroad Company | 1 |
WRWK
| Providence & Worchester Railroad | 1 |