AOK
| Arkansas-Oklahoma Railroad | 22 |
ATW
| Atlantic and Western | 51 |
BCOL
| Canadian National Railways | 32 |
CBRY
| Copper Basin Railway | 10 |
CEFX
| CIT Group/Capital Finance, Inc | 2 |
CN
| Canadian National Railways | 62 |
CNA
| Canadian National Railways | 1 |
CNIS
| Canadian National Railways | 7 |
COER
| Crab Orchard & Egyptian | 61 |
DWC
| Canadian National Railways | 65 |
GAEX
| General American Marks Company | 11 |
GNRR
| Georgia Northeastern | 12 |
GRYR
| Grenada Railway | 1 |
GTW
| Grand Trunk Western | 45 |
IC
| Illinois Central | 10 |
KCS
| Kansas City Southern | 2 |
LRS
| Laurinburg and Southern | 4 |
NDYX
| First Union Rail | 1 |
NKCR
| Nebraska, Kansas & Colorado RailNet, Inc | 2 |
NOKL
| Northwestern Oklahoma | 78 |
NRLX
| CIT Group/Capital Finance, Inc | 1 |
NS
| Norfolk Southern | 11 |
ONT
| Ontario Northland Railway | 2 |
PHMX
| P&H Mining Equipment | 2 |
RVPR
| Riverport R.R., L.L.C. | 3 |
SMW
| St Marys Railway West LLC | 45 |
SOO
| Soo Line | 1 |
TR
| Tomahawk Railway L.P. | 2 |
TTPX
| TTX Company - Bulkhead Flats | 1 |
TTZX
| TTX Company-Centerbeam Flats | 19 |
UCIR
| Union County Industrial Railroad | 24 |
UCRY
| Utah Central | 29 |
UP
| Union Pacific Railroad Company | 1 |
WC
| Wisconsin Central | 45 |
WRWK
| Providence & Worchester Railroad | 50 |