ALY
| Allegheny and Eastern Railroad Incorpora | 1 |
AOK
| Arkansas-Oklahoma Railroad | 1 |
BCIT
| Canadian National Railways | 1 |
BCOL
| Canadian National Railways | 8 |
BN
| Burlington Northern | 8 |
BNSF
| BNSF Railway | 23 |
CN
| Canadian National Railways | 1 |
CW
| Colorado and Wyoming | 1 |
DWC
| Canadian National Railways | 1 |
GIMX
| General American Marks Company | 3 |
GLVX
| Marion Plywood Corp | 2 |
IC
| Illinois Central | 1 |
ICCX
| International Catalyst Corp. | 1 |
ICG
| Illinois Central Gulf | 2 |
IHB
| Indiana Harbor Belt | 5 |
KXHR
| Knoxville & Holston River RR | 1 |
LW
| Louisville and Wadley Railway Company | 4 |
MP
| Missouri Pacific | 2 |
NOKL
| Northwestern Oklahoma | 1 |
NS
| Norfolk Southern | 2 |
RJCC
| R.J. Corman Railroad/Kentucky Lines | 9 |
SOO
| Soo Line | 1 |
SOU
| Southern | 7 |
SP
| Southern Pacific | 6 |
SSW
| St Louis Southwestern (Cotton Belt) | 2 |
TFM
| Kansas City Southern De Mexico | 1 |
TOE
| Texas Oklahoma and Eastern RR Company | 2 |
TRLX
| Texas Railcar Leasing Company | 1 |
TTJX
| TTX Company-Bulkhead Flats | 6 |
TTPX
| TTX Company - Bulkhead Flats | 17 |
UMP
| Upper Merion and Plymouth Railroad | 1 |
UP
| Union Pacific Railroad Company | 4 |