ADN
| Ashley Drew & Northern | 1 |
ALAB
| Alabama Railroad | 2 |
ALM
| Arkansas Louisiana and Mississippi Railr | 1 |
AOK
| Arkansas-Oklahoma Railroad | 1 |
ATSF
| Atchison Topeka & Santa Fe | 2 |
BKTY
| Union Pacific Railroad Company | 1 |
BM
| Boston & Maine | 1 |
BN
| Burlington Northern | 29 |
BNSF
| BNSF Railway | 6 |
CBQ
| Chicago Burlington & Quincy | 1 |
CIRR
| Chattahoochee Industrial Railroad | 1 |
CNW
| Chicago & Northwestern | 2 |
CP
| Canadian Pacific Railway | 2 |
CSX
| CSX Railroad | 1 |
GN
| Great Northern | 2 |
GTW
| Grand Trunk Western | 1 |
GVSR
| Galveston Railroad L.P. | 1 |
HS
| H and S Railroad Company | 1 |
KRR
| Kiamichi | 1 |
MKT
| Missouri-Kansas-Texas | 7 |
MP
| Missouri Pacific | 2 |
NRLX
| CIT Group/Capital Finance, Inc | 1 |
NW
| Norfolk & Western | 1 |
RBOX
| Railbox Company | 1 |
RJCM
| R.J. Corman Railroad Company/ Memphis Li | 1 |
SLSF
| Saint Louis-San Francisco | 31 |
SOO
| Soo Line | 1 |
SRN
| Sabine River & Northern | 3 |
TBOX
| TTX Company | 1 |
UP
| Union Pacific Railroad Company | 1 |