AERC
| Albany and Eastern Railroad Company | 2 |
ALM
| Arkansas Louisiana and Mississippi Railr | 1 |
AOK
| Arkansas-Oklahoma Railroad | 9 |
ATSF
| Atchison Topeka & Santa Fe | 12 |
ATW
| Atlantic and Western | 3 |
BCOL
| Canadian National Railways | 3 |
BKTY
| Union Pacific Railroad Company | 11 |
BNSF
| BNSF Railway | 42 |
CN
| Canadian National Railways | 9 |
CNA
| Canadian National Railways | 3 |
CNIS
| Canadian National Railways | 3 |
CNW
| Chicago & Northwestern | 3 |
COER
| Crab Orchard & Egyptian | 1 |
CRLE
| Coe Rail Incorporated | 1 |
CSX
| CSX Railroad | 2 |
DME
| Dakota, Minnesota and Eastern | 1 |
DRGW
| Denver & Rio Grande Western | 1 |
DWC
| Canadian National Railways | 20 |
EEC
| East Erie Commercial Railroad | 7 |
FBOX
| TTX Company | 2 |
FLOX
| CIT Group/Capital Finance, Inc | 1 |
FXE
| Ferromex | 2 |
GTW
| Grand Trunk Western | 2 |
HESR
| Huron and Eastern | 1 |
HS
| H and S Railroad Company | 4 |
IATR
| Iowa Traction Railroad Company | 1 |
IBT
| International Bridge and Terminal Company | 5 |
KCS
| Kansas City Southern | 6 |
KIWI
| KIWI | 10 |
LRS
| Laurinburg and Southern | 1 |
LRWN
| Little Rock & Western | 1 |
LW
| Louisville and Wadley Railway Company | 4 |
MNNR
| Minnesota Commercial | 1 |
MP
| Missouri Pacific | 3 |
MQT
| Marquette Rail | 1 |
NOKL
| Northwestern Oklahoma | 9 |
NS
| Norfolk Southern | 9 |
RBOX
| Railbox Company | 5 |
RGCX
| Rio Grande Chemical LTD | 1 |
SLC
| San Luis Central Railroad Company | 1 |
SLSF
| Saint Louis-San Francisco | 2 |
SOU
| Southern | 1 |
SP
| Southern Pacific | 6 |
SRN
| Sabine River & Northern | 3 |
SRY
| Southern Railway of British Columbia Lim | 12 |
SSW
| St Louis Southwestern (Cotton Belt) | 7 |
STE
| Stockton Terminal and Eastern RR | 1 |
TBOX
| TTX Company | 25 |
TOE
| Texas Oklahoma and Eastern RR Company | 2 |
TR
| Tomahawk Railway L.P. | 3 |
UP
| Union Pacific Railroad Company | 4 |
WC
| Wisconsin Central | 2 |
WP
| Western Pacific | 1 |
WREX
| Western Railroad Equipment Company | 1 |
WRWK
| Providence & Worchester Railroad | 1 |