AOK
| Arkansas-Oklahoma Railroad | 8 |
ATSF
| Atchison Topeka & Santa Fe | 5 |
BNSF
| BNSF Railway | 53 |
BTTX
| TTX Company - Autoracks | 1 |
CN
| Canadian National Railways | 20 |
CNA
| Canadian National Railways | 41 |
CP
| Canadian Pacific Railway | 15 |
CPAA
| Canadian Pacific Railway | 9 |
CSX
| CSX Railroad | 2 |
CTTX
| TTX Company - Autoracks | 43 |
ETTX
| TTX Company - Autoracks | 114 |
GTW
| Grand Trunk Western | 19 |
KCS
| Kansas City Southern | 4 |
NAFX
| General Electric Rail Services | 2 |
NKCR
| Nebraska, Kansas & Colorado RailNet, Inc | 28 |
NS
| Norfolk Southern | 7 |
PW
| Providence and Worcester | 20 |
SFLC
| BNSF Railway | 9 |
SOO
| Soo Line | 24 |
SOU
| Southern | 1 |
SP
| Southern Pacific | 20 |
SSW
| St Louis Southwestern (Cotton Belt) | 14 |
TGX
| TGX | 2 |
TOCX
| TTX Company - Autoracks | 1 |
TTGX
| TTX Company-Autoracks | 610 |
TTUX
| TTX Company | 11 |
UCRY
| Utah Central | 11 |
UP
| Union Pacific Railroad Company | 5 |
WRW
| WRW | 2 |
WRWK
| Providence & Worchester Railroad | 5 |