AGR
| Alabama and Gulf Coast | 1 |
ATSF
| Atchison Topeka & Santa Fe | 2 |
BCOL
| Canadian National Railways | 2 |
BM
| Boston & Maine | 2 |
BN
| Burlington Northern | 2 |
BNSF
| BNSF Railway | 2 |
CBQ
| Chicago Burlington & Quincy | 1 |
CIRR
| Chattahoochee Industrial Railroad | 1 |
CMHX
| CarMath Incorporated | 2 |
CN
| Canadian National Railways | 3 |
CNA
| Canadian National Railways | 2 |
CNIS
| Canadian National Railways | 1 |
CNW
| Chicago & Northwestern | 3 |
COER
| Crab Orchard & Egyptian | 1 |
CPAA
| Canadian Pacific Railway | 1 |
CR
| Conrail | 13 |
CSX
| CSX Railroad | 7 |
CV
| Central Vermont | 1 |
DRGW
| Denver & Rio Grande Western | 1 |
DWC
| Canadian National Railways | 4 |
EEC
| East Erie Commercial Railroad | 1 |
FXE
| Ferromex | 2 |
GNWR
| Genesee and Wyoming Railroad Company | 1 |
GTRA
| Golden Triangle Railroad | 1 |
GTW
| Grand Trunk Western | 1 |
HS
| H and S Railroad Company | 2 |
IBT
| International Bridge and Terminal Company | 2 |
ICG
| Illinois Central Gulf | 2 |
ITFX
| INFINITY TRANSPORTATION III LLC | 1 |
KELX
| Kellogg Company | 1 |
LBR
| Lowville and Beaver River Railroad Compa | 1 |
LRS
| Laurinburg and Southern | 2 |
MCVX
| Massuchusetts Call/Volunteer Firefighters Assoc. | 2 |
MEC
| Maine Central | 12 |
MP
| Missouri Pacific | 3 |
MTNR
| Mississippi Tennessee Railroad LLC | 1 |
MWCX
| Midwest Railcar Corporation | 1 |
NS
| Norfolk Southern | 23 |
NSHR
| North Shore | 1 |
NW
| Norfolk & Western | 5 |
NYC
| New York Central | 9 |
PRR
| Pennsylvania Railroad | 1 |
PSMX
| Esco Corporation | 1 |
QC
| Quebec Central | 1 |
RBOX
| Railbox Company | 1 |
RPCX
| Railroad Passenger Car Numbering Bureau | 1 |
SLC
| San Luis Central Railroad Company | 1 |
SLR
| St Lawrence & Atlantic | 1 |
SOU
| Southern | 3 |
SP
| Southern Pacific | 10 |
SRY
| Southern Railway of British Columbia Lim | 1 |
TBOX
| TTX Company | 10 |
TFM
| Kansas City Southern De Mexico | 2 |
WC
| Wisconsin Central | 2 |
WCOR
| Wellsboro and Corning Railroad Company | 1 |
WE
| Wheeling & Lake Erie | 1 |
WP
| Western Pacific | 3 |
WSOR
| Wisconsin & Southern | 1 |
YKR
| York Rail | 1 |