AKMD
| Arkansas Midland Railroad Company | 2 |
AOK
| Arkansas-Oklahoma Railroad | 13 |
ATW
| Atlantic and Western | 12 |
BCOL
| Canadian National Railways | 14 |
BNSF
| BNSF Railway | 3 |
CBRY
| Copper Basin Railway | 5 |
CN
| Canadian National Railways | 7 |
CNA
| Canadian National Railways | 2 |
CNIS
| Canadian National Railways | 2 |
COER
| Crab Orchard & Egyptian | 3 |
CRLE
| Coe Rail Incorporated | 2 |
DWC
| Canadian National Railways | 12 |
GNRR
| Georgia Northeastern | 4 |
GTW
| Grand Trunk Western | 9 |
HLSC
| Hampton Railway Incorporated | 6 |
IC
| Illinois Central | 8 |
LMIC
| Lake Michigan & Indiana Railroad | 6 |
LRS
| Laurinburg and Southern | 1 |
LW
| Louisville and Wadley Railway Company | 1 |
MMA
| Montreal, Maine & Atlantic | 2 |
MSRC
| Kansas City Southern | 1 |
NOKL
| Northwestern Oklahoma | 11 |
NS
| Norfolk Southern | 2 |
SGLR
| Seminole Gulf | 3 |
SRY
| Southern Railway of British Columbia Lim | 2 |
TR
| Tomahawk Railway L.P. | 10 |
TTZX
| TTX Company-Centerbeam Flats | 3 |
UP
| Union Pacific Railroad Company | 3 |
WC
| Wisconsin Central | 8 |