AOK
| Arkansas-Oklahoma Railroad | 1 |
ATSF
| Atchison Topeka & Santa Fe | 1 |
ATW
| Atlantic and Western | 2 |
BCOL
| Canadian National Railways | 1 |
BN
| Burlington Northern | 4 |
BNSF
| BNSF Railway | 7 |
CCR
| Corinth & Counce | 1 |
CLC
| Columbia and Cowlitz Railway Company | 1 |
CNA
| Canadian National Railways | 1 |
CP
| Canadian Pacific Railway | 8 |
CSX
| CSX Railroad | 2 |
FBOX
| TTX Company | 1 |
FSRR
| FerroSur | 1 |
GNRR
| Georgia Northeastern | 1 |
GVSR
| Galveston Railroad L.P. | 1 |
HLMX
| Helm Financial Corporation | 3 |
HS
| H and S Railroad Company | 4 |
KCS
| Kansas City Southern | 2 |
MDW
| Minnesota Dakota and Western Railway Com | 3 |
MP
| Missouri Pacific | 1 |
NS
| Norfolk Southern | 2 |
PGR
| Progressive Rail, Inc | 22 |
RBOX
| Railbox Company | 11 |
SOO
| Soo Line | 1 |
SP
| Southern Pacific | 2 |
SRN
| Sabine River & Northern | 1 |
SSW
| St Louis Southwestern (Cotton Belt) | 1 |
TBOX
| TTX Company | 1 |
TOE
| Texas Oklahoma and Eastern RR Company | 3 |
TR
| Tomahawk Railway L.P. | 1 |
WCCL
| Wisconsin Central | 1 |
WCTR
| WCTU Company White City Terminal Railway | 1 |
WP
| Western Pacific | 1 |