ADLX
| Adler Funding LLC | 2 |
AOK
| Arkansas-Oklahoma Railroad | 4 |
BCOL
| Canadian National Railways | 2 |
BNSF
| BNSF Railway | 10 |
BR
| Buffalo and Pittsburgh | 2 |
CBRY
| Copper Basin Railway | 1 |
CNA
| Canadian National Railways | 2 |
COER
| Crab Orchard & Egyptian | 14 |
CSX
| CSX Railroad | 8 |
DWC
| Canadian National Railways | 2 |
FDDM
| Fort Dodge Des Moines & Southern | 2 |
FURX
| First Union Rail | 3 |
GMRC
| Green Mountain RR | 1 |
GNRR
| Georgia Northeastern | 1 |
GTW
| Grand Trunk Western | 2 |
HLSC
| Hampton Railway Incorporated | 6 |
IANR
| Iowa Northern Ry | 2 |
IC
| Illinois Central | 1 |
KLRX
| KOCH RAIL LLC | 1 |
LRS
| Laurinburg and Southern | 3 |
LW
| Louisville and Wadley Railway Company | 5 |
MEC
| Maine Central | 1 |
MMA
| Montreal, Maine & Atlantic | 1 |
MSRC
| Kansas City Southern | 1 |
NDYX
| First Union Rail | 6 |
NOKL
| Northwestern Oklahoma | 4 |
NS
| Norfolk Southern | 15 |
ONT
| Ontario Northland Railway | 2 |
SGLR
| Seminole Gulf | 1 |
SMW
| St Marys Railway West LLC | 4 |
SOO
| Soo Line | 2 |
TR
| Tomahawk Railway L.P. | 17 |
TTZX
| TTX Company-Centerbeam Flats | 27 |
UCRY
| Utah Central | 4 |
UP
| Union Pacific Railroad Company | 13 |
WC
| Wisconsin Central | 1 |
WRWK
| Providence & Worchester Railroad | 7 |