ABOX
| TTX Company | 2 |
AERC
| Albany and Eastern Railroad Company | 1 |
AGR
| Alabama and Gulf Coast | 1 |
BCOL
| Canadian National Railways | 1 |
CMHX
| CarMath Incorporated | 4 |
CN
| Canadian National Railways | 1 |
CNA
| Canadian National Railways | 3 |
CNW
| Chicago & Northwestern | 14 |
CP
| Canadian Pacific Railway | 1 |
CR
| Conrail | 4 |
CSX
| CSX Railroad | 4 |
DRGW
| Denver & Rio Grande Western | 2 |
DTI
| Detroit Toledo & Ironton | 1 |
DWC
| Canadian National Railways | 1 |
EEC
| East Erie Commercial Railroad | 2 |
FBOX
| TTX Company | 1 |
FXE
| Ferromex | 3 |
GTW
| Grand Trunk Western | 6 |
GVSR
| Galveston Railroad L.P. | 1 |
HCGX
| COMPASS MINERALS INTERNATIONAL INC | 2 |
HPJX
| Helm-Pacific Leasing | 1 |
LW
| Louisville and Wadley Railway Company | 1 |
MET
| Modesto and Empire Traction Company | 2 |
MILW
| Milwaukee Road | 2 |
MP
| Missouri Pacific | 9 |
MR
| McCloud Railway Company | 1 |
MRS
| Manufacturers Railway | 1 |
NS
| Norfolk Southern | 1 |
NYC
| New York Central | 1 |
QC
| Quebec Central | 1 |
RBOX
| Railbox Company | 2 |
SOU
| Southern | 2 |
SP
| Southern Pacific | 8 |
SRN
| Sabine River & Northern | 2 |
SSW
| St Louis Southwestern (Cotton Belt) | 2 |
STE
| Stockton Terminal and Eastern RR | 1 |
TBOX
| TTX Company | 4 |
TOE
| Texas Oklahoma and Eastern RR Company | 1 |
UP
| Union Pacific Railroad Company | 8 |
WP
| Western Pacific | 2 |
WSOR
| Wisconsin & Southern | 1 |