AA
| Ann Arbor | 41 |
ADBF
| Adrian and Blissfield Rail Road Company | 6 |
ADIX
| Adirondack Railway Preservation Society | 1 |
AEC
| Atlantic and East Carolina Railway Compa | 3 |
ALAB
| Alabama Railroad | 8 |
AMTK
| Amtrak | 4 |
AR
| Aberdeen and Rockfish | 1 |
ATSF
| Atchison Topeka & Santa Fe | 2 |
ATW
| Atlantic and Western | 4 |
BCOL
| Canadian National Railways | 1 |
BN
| Burlington Northern | 8 |
BNSF
| BNSF Railway | 2 |
BO
| Baltimore & Ohio | 11 |
CAMY
| CAMP CHASE RAILWAY COMPANY, LLC | 2 |
CBQ
| Chicago Burlington & Quincy | 2 |
CBR
| Coos Bay Rail Link | 1 |
CHW
| Chesapeake Western | 2 |
CIL
| Chicago Indianapolis & Louisville (Monon | 3 |
CIM
| Chicago And Illinois Midland | 1 |
CMW
| CMW | 1 |
CN
| Canadian National Railways | 4 |
CNRY
| Cincinnati Railway | 2 |
CNW
| Chicago & Northwestern | 12 |
CO
| Chesapeake & Ohio | 33 |
CONE
| CONE | 1 |
CONW
| Colorado & North Western | 1 |
CP
| Canadian Pacific Railway | 22 |
CPAA
| Canadian Pacific Railway | 2 |
CR
| Conrail | 22 |
CRDX
| Chicago Freight Car Leasing Company | 3 |
CRIP
| Chicago Rock Island & Pacific | 5 |
CS
| Colorado & Southern | 2 |
CSS
| Chicago South Shore And South Bend | 1 |
CSX
| CSX Railroad | 7 |
CV
| Central Vermont | 1 |
DAFX
| Department of Defence Troop Support and Aviation Material Re | 1 |
DH
| Delaware & Hudson | 1 |
DIR
| DIR | 3 |
DM
| Detroit & Mackinac | 2 |
DMIR
| Duluth Missabe & Iron Range | 8 |
DODX
| Department Of Defense | 2 |
DOTX
| USDOT/Federal Railroad Administration | 2 |
DRGW
| Denver & Rio Grande Western | 8 |
DTI
| Detroit Toledo & Ironton | 7 |
DTS
| Detroit & Toledo ShoreLine | 1 |
EBT
| East Broad Top | 1 |
ELS
| Escanaba and Lake Superior Railroad Comp | 9 |
ETAT
| ETAT | 2 |
EVEX
| EVEX | 3 |
FCC
| Flagg Coal Co. | 1 |
FSRR
| FerroSur | 1 |
FXE
| Ferromex | 1 |
GBW
| Green Bay & Western | 1 |
GMO
| Gulf Mobile & Ohio | 5 |
GN
| Great Northern | 2 |
GNRR
| Georgia Northeastern | 8 |
GSMR
| Great Smoky Mountains | 1 |
GSSX
| Gopher State Scrap and Metal | 19 |
GTW
| Grand Trunk Western | 31 |
HESR
| Huron and Eastern | 1 |
HS
| H and S Railroad Company | 4 |
IAIS
| Iowa Interstate | 2 |
IC
| Illinois Central | 2 |
ICG
| Illinois Central Gulf | 3 |
KDR
| KDR | 1 |
KZA
| KZA | 2 |
LBR
| Lowville and Beaver River Railroad Compa | 2 |
LDEK
| LDEK | 1 |
LFC
| LFC | 1 |
LN
| Louisville & Nashville | 5 |
LRR
| Little River Railroad | 1 |
LRS
| Laurinburg and Southern | 23 |
LSRC
| Lake State Railway Company | 3 |
LSRX
| Lake Superior Railroad Museum | 4 |
LTSR
| LTSR | 1 |
MDW
| Minnesota Dakota and Western Railway Com | 4 |
MILW
| Milwaukee Road | 1 |
MKT
| Missouri-Kansas-Texas | 2 |
MNS
| Minneapolis Northfield & Southern | 4 |
MON
| Monon Route | 6 |
MPA
| Maryland and Pennsylvania Railroad | 2 |
MQT
| Marquette Rail | 1 |
MRS
| Manufacturers Railway | 2 |
MSTL
| Minneapolis & St Louis | 4 |
MWCX
| Midwest Railcar Corporation | 1 |
NH
| New Haven | 1 |
NKP
| Nickel Plate | 15 |
NKPX
| NKPX | 2 |
NOKL
| Northwestern Oklahoma | 3 |
NORD
| NORD | 1 |
NP
| Northern Pacific | 3 |
NRMX
| NRMX | 1 |
NS
| Norfolk Southern | 10 |
NW
| Norfolk & Western | 12 |
NWR
| Nashville & Western Railroad Corp. | 2 |
NYC
| New York Central | 5 |
PC
| Penn Central | 5 |
PHD
| Port Huron and Detroit Railroad Company | 3 |
PLM
| PLM | 5 |
PM
| Pere Marquette | 8 |
POTB
| Port of Tillamook Bay | 1 |
PRR
| Pennsylvania Railroad | 12 |
QOCX
| Quaker Oats Company | 3 |
RBBQ
| Chicago, Burlington and Quincy Reefers | 2 |
RBMN
| Reading Blue Mountain & Northern | 1 |
RDH
| RDH | 1 |
RENF
| RENF | 2 |
REX
| Railway Express Agency, Inc. | 1 |
RGS
| Rio Grande Southern | 1 |
RJCR
| RJ Corman | 1 |
RPCX
| Railroad Passenger Car Numbering Bureau | 2 |
RVCX
| Richter Vinegar Company | 3 |
SCL
| Seaboard Coast Line | 1 |
SLGG
| Progress Rail Services Corporation | 1 |
SMW
| St Marys Railway West LLC | 10 |
SNC
| Saratoga & North Creek Railway | 1 |
SNCF
| French National Railways | 2 |
SOO
| Soo Line | 6 |
SOU
| Southern | 19 |
SP
| Southern Pacific | 12 |
SSW
| St Louis Southwestern (Cotton Belt) | 3 |
TBOX
| TTX Company | 4 |
TCAX
| General Electric Rail Services | 1 |
TCRX
| Tennessee Central Railway Musem | 1 |
TF
| Tallulah Falls Ry. Co | 1 |
TPW
| Toledo Peoria & Western | 1 |
TSBY
| Great Lakes Central Railroad | 14 |
TSCX
| The Steel Company of Canada, Ltd. | 7 |
TVRM
| Tennessee Valley | 1 |
UP
| Union Pacific Railroad Company | 13 |
UPP
| Union Pacific Passenger | 1 |
USA
| USA | 6 |
USAF
| US Air Force | 1 |
USAX
| United States Army | 2 |
USLX
| General Electric Rail Services | 1 |
USNA
| USNA | 1 |
VGN
| Virginian Railway | 2 |
WAB
| Wabash | 15 |
WC
| Wisconsin Central | 2 |
WECX
| Westinghouse Electric Corporation | 5 |
WGRR
| WGRR | 2 |
WLE
| WLE | 1 |
WLO
| Waterloo Railway Company (Illinois Central) | 2 |
WM
| Western Maryland | 1 |
WP
| Western Pacific | 3 |
YRS
| YRS | 1 |