ABOX
| TTX Company | 5 |
AGR
| Alabama and Gulf Coast | 5 |
AM
| Arkansas & Missouri | 1 |
AOK
| Arkansas-Oklahoma Railroad | 2 |
ATW
| Atlantic and Western | 5 |
AZER
| Arizona Eastern Railway Company | 1 |
BAEX
| Andersons | 4 |
BAR
| Bangor & Aroostook | 3 |
BCLR
| Bay Colony | 2 |
BCOL
| Canadian National Railways | 6 |
BM
| Boston & Maine | 3 |
BPRR
| Buffalo and Pittsburgh | 5 |
CIRR
| Chattahoochee Industrial Railroad | 1 |
CMHX
| CarMath Incorporated | 2 |
CN
| Canadian National Railways | 12 |
CNA
| Canadian National Railways | 9 |
CNIS
| Canadian National Railways | 2 |
CNW
| Chicago & Northwestern | 4 |
CP
| Canadian Pacific Railway | 5 |
CRLE
| Coe Rail Incorporated | 5 |
CSX
| CSX Railroad | 96 |
DH
| Delaware & Hudson | 2 |
DRGW
| Denver & Rio Grande Western | 6 |
DWC
| Canadian National Railways | 3 |
EEC
| East Erie Commercial Railroad | 7 |
FBOX
| TTX Company | 10 |
FGLK
| Finger Lakes Railway | 17 |
GFRR
| Georgia and Florida Railnet | 1 |
GMRC
| Green Mountain RR | 23 |
GNRR
| Georgia Northeastern | 1 |
GNWR
| Genesee and Wyoming Railroad Company | 6 |
GTW
| Grand Trunk Western | 4 |
HLMX
| Helm Financial Corporation | 7 |
HPJX
| Helm-Pacific Leasing | 2 |
HS
| H and S Railroad Company | 14 |
IBT
| International Bridge and Terminal Company | 3 |
IC
| Illinois Central | 3 |
KCS
| Kansas City Southern | 8 |
LBR
| Lowville and Beaver River Railroad Compa | 2 |
LRWN
| Little Rock & Western | 1 |
LW
| Louisville and Wadley Railway Company | 1 |
MB
| Meridian & Bigbee | 2 |
MCVX
| Massuchusetts Call/Volunteer Firefighters Assoc. | 2 |
MEC
| Maine Central | 38 |
MET
| Modesto and Empire Traction Company | 1 |
MMA
| Montreal, Maine & Atlantic | 5 |
MP
| Missouri Pacific | 10 |
NCOK
| North Central Oklahoma | 2 |
NOKL
| Northwestern Oklahoma | 2 |
NS
| Norfolk Southern | 25 |
NYC
| New York Central | 2 |
OAR
| Old Augusta Railroad | 1 |
PDRR
| Pee Dee River RR | 1 |
POHC
| Pittsburgh & Ohio Central | 2 |
PRR
| Pennsylvania Railroad | 3 |
RBOX
| Railbox Company | 31 |
SGLR
| Seminole Gulf | 1 |
SLC
| San Luis Central Railroad Company | 1 |
SLR
| St Lawrence & Atlantic | 6 |
SOU
| Southern | 22 |
SP
| Southern Pacific | 29 |
SRN
| Sabine River & Northern | 3 |
SRY
| Southern Railway of British Columbia Lim | 2 |
SSW
| St Louis Southwestern (Cotton Belt) | 15 |
TBOX
| TTX Company | 19 |
TR
| Tomahawk Railway L.P. | 1 |
UP
| Union Pacific Railroad Company | 13 |
WC
| Wisconsin Central | 6 |
WP
| Western Pacific | 1 |
YARR
| Youngstown and Austintown Railroad | 2 |
YKR
| York Rail | 1 |