ABOX
| TTX Company | 1 |
ADN
| Ashley Drew & Northern | 1 |
AGR
| Alabama and Gulf Coast | 1 |
AOK
| Arkansas-Oklahoma Railroad | 1 |
ATSF
| Atchison Topeka & Santa Fe | 6 |
BCIT
| Canadian National Railways | 1 |
BN
| Burlington Northern | 2 |
BNSF
| BNSF Railway | 1 |
BO
| Baltimore & Ohio | 2 |
CIRR
| Chattahoochee Industrial Railroad | 1 |
CN
| Canadian National Railways | 4 |
CNA
| Canadian National Railways | 1 |
CNW
| Chicago & Northwestern | 1 |
CO
| Chesapeake & Ohio | 1 |
COER
| Crab Orchard & Egyptian | 1 |
CP
| Canadian Pacific Railway | 12 |
CR
| Conrail | 1 |
CRIP
| Chicago Rock Island & Pacific | 2 |
CSX
| CSX Railroad | 9 |
DM
| Detroit & Mackinac | 1 |
DRGW
| Denver & Rio Grande Western | 11 |
DSDX
| Dairy Shippers Despatch Co. | 1 |
DSNG
| Durango & Silverton Narrow Gauge Railroa | 1 |
DTS
| Detroit & Toledo ShoreLine | 1 |
DWC
| Canadian National Railways | 2 |
EEC
| East Erie Commercial Railroad | 3 |
EL
| Erie Lackawanna | 2 |
FXE
| Ferromex | 2 |
GTW
| Grand Trunk Western | 4 |
IC
| Illinois Central | 2 |
ICG
| Illinois Central Gulf | 1 |
KCS
| Kansas City Southern | 6 |
LAPX
| Linde Air Products Co. | 1 |
LBR
| Lowville and Beaver River Railroad Compa | 1 |
LN
| Louisville & Nashville | 4 |
MEC
| Maine Central | 1 |
MILW
| Milwaukee Road | 3 |
MKT
| Missouri-Kansas-Texas | 1 |
MP
| Missouri Pacific | 14 |
MPCX
| Michels Corporation | 1 |
MRL
| Montana Rail Link | 1 |
MVCX
| MVCX | 2 |
MWCX
| Midwest Railcar Corporation | 2 |
NS
| Norfolk Southern | 5 |
NSL
| St. Lawrence and Raquette River Railroad | 1 |
NW
| Norfolk & Western | 4 |
NYC
| New York Central | 3 |
PC
| Penn Central | 8 |
PRR
| Pennsylvania Railroad | 3 |
RBOX
| Railbox Company | 3 |
RDG
| Reading Railroad | 1 |
SCL
| Seaboard Coast Line | 2 |
SLR
| St Lawrence & Atlantic | 1 |
SLSF
| Saint Louis-San Francisco | 2 |
SMW
| St Marys Railway West LLC | 1 |
SOO
| Soo Line | 3 |
SOU
| Southern | 32 |
SP
| Southern Pacific | 20 |
SSW
| St Louis Southwestern (Cotton Belt) | 12 |
TBOX
| TTX Company | 7 |
TP
| Texas & Pacific | 1 |
UP
| Union Pacific Railroad Company | 5 |
USLX
| General Electric Rail Services | 1 |
WAB
| Wabash | 1 |
WP
| Western Pacific | 2 |