AA
| Ann Arbor | 3 |
AC
| Algoma Central | 15 |
ACL
| Atlantic Coast Line | 4 |
ADBF
| Adrian and Blissfield Rail Road Company | 21 |
ADIX
| Adirondack Railway Preservation Society | 18 |
AL
| Almanor Railroad Company | 2 |
AM
| Arkansas & Missouri | 1 |
AMTK
| Amtrak | 141 |
AMTL
| Agence métropolitaine de transport | 2 |
AOEX
| American Orient Express Railway Company | 1 |
ARTX
| Artrain | 12 |
AT
| Auto Train | 1 |
ATAX
| Arizona Transit Assembly | 1 |
ATSF
| Atchison Topeka & Santa Fe | 22 |
BGRM
| Bluegrass Railroad Museum | 13 |
BHC
| Black Hills Central | 1 |
BLE
| Bessemer & Lake Erie | 2 |
BLRX
| BLRX | 38 |
BM
| Boston & Maine | 1 |
BMC
| BMC | 5 |
BML
| Belfast & Mooshead Lake | 6 |
BN
| Burlington Northern | 1 |
BO
| Baltimore & Ohio | 29 |
BOMX
| B&O Railroad Museum Inc. | 6 |
BR
| Buffalo and Pittsburgh | 8 |
BSRW
| BSRW | 6 |
BSVY
| Boone & Scenic Valley Railroad | 6 |
BYCX
| Chelatchie Prairie Railroad | 2 |
CBQ
| Chicago Burlington & Quincy | 26 |
CDCG
| CDCG | 5 |
CDTX
| California DOT | 1 |
CEI
| Chicago & Eastern Illinois | 1 |
CG
| Central Of Georgia | 3 |
CGW
| Chicago Great Western | 2 |
CHS
| Charlotte Southern | 34 |
CIWL
| CIWL | 4 |
CN
| Canadian National Railways | 23 |
CNJ
| Central Rail Road of New Jersey | 3 |
CNRY
| Cincinnati Railway | 14 |
CNW
| Chicago & Northwestern | 38 |
CO
| Chesapeake & Ohio | 23 |
CP
| Canadian Pacific Railway | 13 |
CPMY
| Coopersville & Marne Railway | 35 |
CRC
| CRC | 37 |
CRIP
| Chicago Rock Island & Pacific | 27 |
CRRX
| Canon City and Royal Gorge Railroad LLC | 5 |
CS
| Colorado & Southern | 1 |
CSX
| CSX Railroad | 19 |
CTVX
| Cleveland Terminal and Valley Railway Incorporated | 9 |
CV
| Central Vermont | 2 |
CVSR
| Cuyahoga Valley Scenic RR | 8 |
CWI
| Chicago and Western Indiana | 5 |
DH
| Delaware & Hudson | 2 |
DIR
| DIR | 1 |
DLMX
| Daylight Locomotives and Machine Works Incorporated | 1 |
DLW
| Delaware Lackawanna & Western | 12 |
DLWR
| Depew Lancaster and Western Railroad Com | 1 |
DM
| Detroit & Mackinac | 3 |
DMIR
| Duluth Missabe & Iron Range | 4 |
DMN
| Duluth Missabe and Northern Railway | 1 |
DRGW
| Denver & Rio Grande Western | 9 |
DSL
| Denver & Salt Lake | 2 |
DSSA
| Duluth, South Shore & Atlantic | 8 |
EBT
| East Broad Top | 9 |
EER
| EER | 2 |
ELS
| Escanaba and Lake Superior Railroad Comp | 1 |
ERIE
| Erie Railroad | 13 |
EST
| EST | 1 |
ETWN
| ETWN | 1 |
FLNX
| R.P. Flynn Incorporated d/b/a Ohio Railway Supply | 29 |
FN
| FN | 8 |
FRYX
| Federated Railways Inc | 22 |
FVVB
| FVVB | 3 |
GBW
| Green Bay & Western | 1 |
GCRY
| Grand Canyon Railway | 13 |
GLC
| Great Lakes Central Railroad | 5 |
GLRR
| GLRR | 4 |
GLRX
| Georgetown Loop Railroad Incorporated | 2 |
GMO
| Gulf Mobile & Ohio | 2 |
GN
| Great Northern | 5 |
GOAN
| GOAN | 2 |
GOT
| GO Transit | 1 |
GSF
| Georgia Southern and Florida Railway Company | 3 |
GSM
| Great Smokey Mountains Railway | 5 |
GSMR
| Great Smoky Mountains | 36 |
GSSR
| GSSR | 2 |
GTW
| Grand Trunk Western | 50 |
HBRR
| Huckleberry Railroad | 34 |
HGC
| HGC | 3 |
HRT
| Hartwell RR | 3 |
HVRX
| Heber Valley Historic Railroad | 4 |
HVSR
| Hocking Valley Scenic | 9 |
HVSX
| HVSX | 7 |
IAIS
| Iowa Interstate | 15 |
IC
| Illinois Central | 32 |
IORY
| Indiana & Ohio | 6 |
IRMX
| III TRANSPORTATION | 4 |
IRWX
| IRWX | 3 |
IRYM
| Illinois Railway Museum | 3 |
ISRX
| Iaeger and Southern | 2 |
ITAX
| Illinois Transit Assembly Incorporated | 2 |
JGSA
| JGSA | 4 |
JMR
| JMR | 1 |
JRBB
| JRBB | 2 |
KKRR
| Knox and Kane Railroad Company | 2 |
KLSC
| Kalamazoo Lake Shore and Chicago Railway | 6 |
KXHR
| Knoxville & Holston River RR | 7 |
LC
| Lancaster & Chester | 2 |
LCRA
| LCRA | 1 |
LGSR
| LGSR | 1 |
LI
| Long Island Rail Road Company | 4 |
LIRR
| Long Island Railroad | 24 |
LMM
| LMM | 6 |
LN
| Louisville & Nashville | 12 |
LRR
| Little River Railroad | 49 |
LSRX
| Lake Superior Railroad Museum | 5 |
LTSR
| LTSR | 2 |
LWVX
| Lake Shore Railway Association Inc. | 9 |
MARC
| Maryland Transit Administration | 10 |
MCRR
| Monongahela Connecting RR Company | 9 |
METX
| METRA | 35 |
MFC
| MFC | 1 |
MGA
| Monongahela RR | 1 |
MHM
| MHM | 2 |
MILW
| Milwaukee Road | 20 |
MJRX
| Railway Service Contractors Inc | 5 |
MKT
| Missouri-Kansas-Texas | 2 |
MNCR
| Metro North Commuter Railway | 4 |
MNE
| Manistee & North East | 1 |
MP
| Missouri Pacific | 1 |
MRLX
| Mid America Rail Car Leasing | 9 |
MRYM
| Monticello Railway Museum | 1 |
MSCI
| Mississippi Central Railroad Company | 1 |
MSO
| Michigan Southern | 1 |
MSTX
| MSTX | 58 |
MSV
| Mississippi and Skuna Valley Railroad Co | 1 |
MT
| Mississippi and Tennessee RailNet Incorporated | 1 |
MTA
| NYC Transit | 4 |
MTDX
| Midwest Transportation & Development Cor | 4 |
MZA
| MZA | 2 |
NCID
| NCID | 4 |
NCMX
| North Carolina Transportation Museum | 17 |
NCSL
| Nashville Chattanooga & St Louis | 4 |
NGRX
| NGRX | 2 |
NH
| New Haven | 2 |
NICD
| Northern-Indiana Commuter Transportation | 1 |
NJT
| New Jersey Transit | 5 |
NKP
| Nickel Plate | 18 |
NKPX
| NKPX | 15 |
NMRX
| New Mexico Department Of Transportation | 4 |
NORD
| NORD | 5 |
NP
| Northern Pacific | 5 |
NRHX
| National Railway Historical Society | 7 |
NRM
| NRM | 2 |
NS
| Norfolk Southern | 10 |
NSRX
| Railroading Heritage Of Midwest America | 1 |
NW
| Norfolk & Western | 22 |
NYC
| New York Central | 60 |
OBB
| OBB | 2 |
OCSR
| OCSR | 5 |
OE
| Oregon Electric | 1 |
OHCR
| Ohio Central | 6 |
OPR
| Oregon Pacific | 2 |
OSRM
| OSRM | 5 |
OW
| OW | 1 |
PAXX
| PAXX | 7 |
PC
| Penn Central | 31 |
PLE
| Pittsburgh & Lake Erie | 1 |
PLM
| PLM | 9 |
PM
| Pere Marquette | 2 |
PNWC
| PNWC | 10 |
PO
| PO | 3 |
PPCX
| AAPRCO Register Private Cars | 52 |
PRR
| Pennsylvania Railroad | 31 |
PULL
| Pullman | 39 |
RBBX
| Ringling Bros. and Barnum and Bailey | 10 |
RBMN
| Reading Blue Mountain & Northern | 20 |
RDG
| Reading Railroad | 1 |
RENF
| RENF | 12 |
RFP
| Richmond Fredericksburg & Potomac | 1 |
RHSX
| CentralNew York Chapter NRHS | 6 |
RNCX
| North Carolina Dept Of Transportation | 15 |
RPCX
| Railroad Passenger Car Numbering Bureau | 74 |
SAL
| Seaboard Air Line | 13 |
SBB
| Swiss Railways | 1 |
SBD
| Seaboard System | 5 |
SCAX
| SOUTHERN CALIFORNIA REGIONAL RAIL AUTHORITY | 3 |
SCL
| Seaboard Coast Line | 1 |
SEMT
| SEMT | 3 |
SFS
| Santa Fe Southern | 2 |
SJ
| SJ | 6 |
SLCX
| St. Lawrence Cement Inc. | 2 |
SLRG
| San Luis and Rio Grande Railroad | 10 |
SNCF
| French National Railways | 17 |
SOO
| Soo Line | 4 |
SOU
| Southern | 61 |
SP
| Southern Pacific | 15 |
SPP
| SPP | 1 |
SPS
| Spokane Portland & Seattle | 5 |
SR
| Kansas City Southern | 1 |
SRR
| SRR | 1 |
SVRR
| Shamokin Valley Railroad Company | 1 |
SWGX
| Southwest Georgia Railroad Excursion Aut | 2 |
SWKR
| San Pedro and Southwestern Railway Compa | 1 |
TARA
| TARA | 3 |
TLEW
| TLEW | 7 |
TPR
| TPR | 1 |
TSBY
| Great Lakes Central Railroad | 1 |
TVRM
| Tennessee Valley | 23 |
UP
| Union Pacific Railroad Company | 33 |
UPP
| Union Pacific Passenger | 7 |
URY
| Union Ry. of Memphis | 2 |
USA
| USA | 3 |
USAX
| United States Army | 12 |
USFU
| US Department of Defense Air Force | 1 |
UTAX
| Utah Frontrunner | 9 |
VIA
| Via Rail Canada | 15 |
VRE
| Virginia Railway Express | 19 |
VT
| Virginia & Truckee | 1 |
WAB
| Wabash | 6 |
WATX
| Watco | 4 |
WC
| Wisconsin Central | 1 |
WE
| Wheeling & Lake Erie | 1 |
WGRR
| WGRR | 3 |
WMSR
| Western Maryland Scenic | 1 |
WP
| Western Pacific | 3 |
WPYR
| White Pass & Yukon Route | 1 |
WRLX
| Relco Tank Line Incorporated | 1 |
WRR
| WRR | 7 |
WRRX
| Waldens Ridge Railroad | 2 |
WRX
| Western Refrigerator Line Company Termin | 1 |
WSOR
| Wisconsin & Southern | 5 |
WVRR
| Whitewater Valley Railroad | 15 |
YW
| Yreka Western Railroad Company | 1 |