AOK
| Arkansas-Oklahoma Railroad | 7 |
ATW
| Atlantic and Western | 6 |
BCOL
| Canadian National Railways | 2 |
BNSF
| BNSF Railway | 26 |
CAGY
| Columbus & Greenville Railway | 1 |
CHTT
| Chicago Heights Terminal Transfer | 2 |
CLC
| Columbia and Cowlitz Railway Company | 3 |
CN
| Canadian National Railways | 6 |
CNIS
| Canadian National Railways | 2 |
COER
| Crab Orchard & Egyptian | 3 |
CSX
| CSX Railroad | 2 |
DWC
| Canadian National Railways | 6 |
FURX
| First Union Rail | 27 |
GTW
| Grand Trunk Western | 1 |
HLSC
| Hampton Railway Incorporated | 6 |
IC
| Illinois Central | 3 |
LW
| Louisville and Wadley Railway Company | 2 |
MSRC
| Kansas City Southern | 1 |
NDYX
| First Union Rail | 2 |
NOKL
| Northwestern Oklahoma | 5 |
NS
| Norfolk Southern | 1 |
SERA
| Sierra Northern Railway | 1 |
SFLC
| BNSF Railway | 2 |
SMW
| St Marys Railway West LLC | 2 |
SOO
| Soo Line | 9 |
TR
| Tomahawk Railway L.P. | 9 |
TTZX
| TTX Company-Centerbeam Flats | 89 |
UP
| Union Pacific Railroad Company | 14 |
WC
| Wisconsin Central | 1 |
WRWK
| Providence & Worchester Railroad | 1 |