AOK
| Arkansas-Oklahoma Railroad | 15 |
ATW
| Atlantic and Western | 4 |
BCOL
| Canadian National Railways | 14 |
BNSF
| BNSF Railway | 2 |
CBRY
| Copper Basin Railway | 3 |
CN
| Canadian National Railways | 24 |
CNA
| Canadian National Railways | 1 |
CNIS
| Canadian National Railways | 3 |
COER
| Crab Orchard & Egyptian | 1 |
CP
| Canadian Pacific Railway | 3 |
CRLE
| Coe Rail Incorporated | 1 |
DWC
| Canadian National Railways | 12 |
GACX
| General American Marks Company | 1 |
GAEX
| General American Marks Company | 3 |
GNRR
| Georgia Northeastern | 2 |
GTW
| Grand Trunk Western | 7 |
HLSC
| Hampton Railway Incorporated | 1 |
IC
| Illinois Central | 5 |
LW
| Louisville and Wadley Railway Company | 1 |
MMA
| Montreal, Maine & Atlantic | 2 |
MSRC
| Kansas City Southern | 1 |
NOKL
| Northwestern Oklahoma | 21 |
NS
| Norfolk Southern | 12 |
ONT
| Ontario Northland Railway | 1 |
RVPR
| Riverport R.R., L.L.C. | 1 |
SGLR
| Seminole Gulf | 1 |
SMW
| St Marys Railway West LLC | 1 |
SOO
| Soo Line | 38 |
SRY
| Southern Railway of British Columbia Lim | 1 |
TR
| Tomahawk Railway L.P. | 2 |
TTZX
| TTX Company-Centerbeam Flats | 40 |
UCRY
| Utah Central | 2 |
UP
| Union Pacific Railroad Company | 2 |
WC
| Wisconsin Central | 16 |