ADN
| Ashley Drew & Northern | 2 |
AHW
| Fox Valley and Western Limited | 1 |
AN
| Apalachicola Northern | 2 |
APA
| Apache Railway Company | 1 |
ASAB
| Bay Line Railroad LLC | 2 |
ATSF
| Atchison Topeka & Santa Fe | 3 |
BAR
| Bangor & Aroostook | 1 |
BCOL
| Canadian National Railways | 1 |
BN
| Burlington Northern | 11 |
CCR
| Corinth & Counce | 7 |
CN
| Canadian National Railways | 1 |
CNW
| Chicago & Northwestern | 2 |
CP
| Canadian Pacific Railway | 2 |
CSX
| CSX Railroad | 1 |
CVC
| Canadian National Railways | 2 |
DRGW
| Denver & Rio Grande Western | 11 |
DVS
| Delta Valley and Southern Railway Compan | 1 |
ELS
| Escanaba and Lake Superior Railroad Comp | 1 |
GN
| Great Northern | 1 |
GTRA
| Golden Triangle Railroad | 1 |
GVSR
| Galveston Railroad L.P. | 5 |
HS
| H and S Railroad Company | 2 |
ICG
| Illinois Central Gulf | 2 |
LRWN
| Little Rock & Western | 1 |
MDW
| Minnesota Dakota and Western Railway Com | 3 |
MP
| Missouri Pacific | 4 |
MR
| McCloud Railway Company | 3 |
MRL
| Montana Rail Link | 4 |
MSE
| Mississippi Export Railroad Company | 3 |
MTW
| Marinette Tomahawk & Western | 1 |
NLG
| Kansas City Southern Railway Company (North Louisiana & Gulf) | 2 |
NOKL
| Northwestern Oklahoma | 1 |
NW
| Norfolk & Western | 1 |
OLYR
| Olympic Railroad Company | 1 |
RBOX
| Railbox Company | 5 |
SLC
| San Luis Central Railroad Company | 1 |
SM
| St. Marys Railroad | 1 |
SOU
| Southern | 7 |
SP
| Southern Pacific | 17 |
SRN
| Sabine River & Northern | 3 |
SSW
| St Louis Southwestern (Cotton Belt) | 17 |
STE
| Stockton Terminal and Eastern RR | 2 |
TASD
| Terminal Alabama State Docks | 1 |
TOE
| Texas Oklahoma and Eastern RR Company | 1 |
UP
| Union Pacific Railroad Company | 5 |
VCY
| Galveston Railroad, L.P. | 2 |
WC
| Wisconsin Central | 1 |
WCTR
| WCTU Company White City Terminal Railway | 10 |
WLO
| Waterloo Railway Company (Illinois Central) | 3 |
WP
| Western Pacific | 3 |