ANR
| Angelina and Neches River Railroad | 1 |
ATW
| Atlantic and Western | 1 |
BAYL
| Bay Line, LLC | 2 |
BN
| Burlington Northern | 2 |
BNSF
| BNSF Railway | 4 |
CN
| Canadian National Railways | 4 |
CNA
| Canadian National Railways | 13 |
COER
| Crab Orchard & Egyptian | 1 |
CRLE
| Coe Rail Incorporated | 1 |
CSX
| CSX Railroad | 53 |
CVC
| Canadian National Railways | 2 |
DWC
| Canadian National Railways | 1 |
FBOX
| TTX Company | 34 |
FRR
| Falls Road Railroad Company Incorporated | 2 |
GTW
| Grand Trunk Western | 1 |
LW
| Louisville and Wadley Railway Company | 11 |
MR
| McCloud Railway Company | 1 |
NADX
| General Electric Rail Services | 1 |
NKCR
| Nebraska, Kansas & Colorado RailNet, Inc | 1 |
NOKL
| Northwestern Oklahoma | 1 |
NS
| Norfolk Southern | 6 |
SLGG
| Progress Rail Services Corporation | 1 |
SOO
| Soo Line | 1 |
TR
| Tomahawk Railway L.P. | 6 |
WC
| Wisconsin Central | 3 |