AKMD
| Arkansas Midland Railroad Company | 1 |
AOK
| Arkansas-Oklahoma Railroad | 2 |
ATW
| Atlantic and Western | 2 |
BCOL
| Canadian National Railways | 3 |
CN
| Canadian National Railways | 1 |
COER
| Crab Orchard & Egyptian | 1 |
DWC
| Canadian National Railways | 2 |
FDDM
| Fort Dodge Des Moines & Southern | 1 |
GAEX
| General American Marks Company | 3 |
GNRR
| Georgia Northeastern | 2 |
GTW
| Grand Trunk Western | 2 |
HPTX
| HAMPTON CAPITAL LLC | 1 |
IC
| Illinois Central | 2 |
KLRX
| KOCH RAIL LLC | 2 |
NOKL
| Northwestern Oklahoma | 6 |
NS
| Norfolk Southern | 5 |
SMW
| St Marys Railway West LLC | 2 |
SNC
| Saratoga & North Creek Railway | 1 |
SOO
| Soo Line | 4 |
TR
| Tomahawk Railway L.P. | 1 |
TTZX
| TTX Company-Centerbeam Flats | 4 |
UP
| Union Pacific Railroad Company | 1 |
WC
| Wisconsin Central | 2 |
WRWK
| Providence & Worchester Railroad | 2 |