AA
| Ann Arbor | 1 |
AARX
| Association of American Railroads | 1 |
AC
| Algoma Central | 3 |
ACL
| Atlantic Coast Line | 1 |
ACWR
| Aberdeen, Carolina & Western | 2 |
ADBF
| Adrian and Blissfield Rail Road Company | 3 |
ADIX
| Adirondack Railway Preservation Society | 1 |
AEC
| Atlantic and East Carolina Railway Compa | 1 |
AFT
| AMERICAN FREEDOM TRAIN FOUNDATION | 16 |
AHCX
| PCS Phosphate Company | 1 |
ALL
| America Latina Logistica | 2 |
AMTK
| Amtrak | 365 |
ARR
| Alaska Railroad | 13 |
ARTX
| Artrain | 1 |
ASML
| Atlanta, Stone Mountain & Lithonia | 1 |
AT
| Auto Train | 2 |
ATAX
| Arizona Transit Assembly | 2 |
ATSF
| Atchison Topeka & Santa Fe | 39 |
AWP
| Atlanta & West Point | 1 |
BAR
| Bangor & Aroostook | 2 |
BB
| Buckingham Branch | 1 |
BCPM
| British Columbia Provincial Museum | 2 |
BHC
| Black Hills Central | 2 |
BIRR
| Bellingham International Railroad LLC | 1 |
BLRX
| BLRX | 1 |
BM
| Boston & Maine | 3 |
BMC
| BMC | 1 |
BMRG
| Blue Mountain & Reading | 1 |
BN
| Burlington Northern | 20 |
BNA
| Burlington Northern Business Cars | 1 |
BNSF
| BNSF Railway | 2 |
BO
| Baltimore & Ohio | 12 |
BRW
| Black River And Western | 3 |
BSRX
| Branson Scenic | 3 |
BUGX
| Bruggere and Monson | 1 |
C
| C | 1 |
CAGY
| Columbus & Greenville Railway | 1 |
CANX
| CANAC International | 1 |
CBQ
| Chicago Burlington & Quincy | 17 |
CBRW
| Columbia Basin Railroad | 1 |
CBRX
| Charles Barthold | 1 |
CDHX
| Caledonian Rail Lines, LLC | 1 |
CESX
| CENTRAL STATES RAIL ASSOCIATES, INC. | 1 |
CG
| Central Of Georgia | 23 |
CHS
| Charlotte Southern | 1 |
CIRR
| Chattahoochee Industrial Railroad | 1 |
CMW
| CMW | 1 |
CN
| Canadian National Railways | 18 |
CNJ
| Central Rail Road of New Jersey | 3 |
CNRY
| Cincinnati Railway | 2 |
CNW
| Chicago & Northwestern | 12 |
CO
| Chesapeake & Ohio | 6 |
CP
| Canadian Pacific Railway | 19 |
CR
| Conrail | 2 |
CRC
| CRC | 3 |
CRDX
| Chicago Freight Car Leasing Company | 1 |
CRHA
| Candian Railroad Historical Assocation | 2 |
CRIP
| Chicago Rock Island & Pacific | 19 |
CRRX
| Canon City and Royal Gorge Railroad LLC | 2 |
CS
| Colorado & Southern | 1 |
CSS
| Chicago South Shore And South Bend | 2 |
CSX
| CSX Railroad | 3 |
CTC
| CTC | 2 |
CTR
| Clinton Terminal Railroad Company | 2 |
CTVX
| Cleveland Terminal and Valley Railway Incorporated | 2 |
CVSR
| Cuyahoga Valley Scenic RR | 3 |
DCFB
| Dodge City Ford and Bucklin Railroad Com | 1 |
DCRL
| DCRL | 1 |
DGBR
| DGBR | 1 |
DH
| Delaware & Hudson | 10 |
DLJX
| DLJX | 1 |
DLMX
| Daylight Locomotives and Machine Works Incorporated | 1 |
DLW
| Delaware Lackawanna & Western | 7 |
DLWR
| Depew Lancaster and Western Railroad Com | 1 |
DLWX
| D.L. and W. Incorporated | 1 |
DM
| Detroit & Mackinac | 2 |
DOTX
| USDOT/Federal Railroad Administration | 1 |
DRCX
| Denver Railway Car Co | 3 |
DRGW
| Denver & Rio Grande Western | 8 |
DSNG
| Durango & Silverton Narrow Gauge Railroa | 1 |
DSSA
| Duluth, South Shore & Atlantic | 1 |
EBT
| East Broad Top | 1 |
EFS
| EFS | 2 |
EFVM
| Estrada de Ferro Vitoria-Minas | 1 |
EL
| Erie Lackawanna | 4 |
EOLX
| EOLX | 1 |
ERIE
| Erie Railroad | 1 |
ETRC
| ETRC | 1 |
EUKA
| EUKA | 1 |
FC
| Fulton County Railroad Incorporated | 2 |
FCP
| Ferrocarril Del Pacifico | 4 |
FDEC
| Ferrocariles de Cuba | 2 |
FDEE
| FDEE | 1 |
FEC
| Florida East Coast | 3 |
FEPA
| FEPA | 8 |
FEVR
| Fremont & Elkhorn Valley Railroad | 1 |
FNM
| Ferrocarriles Nacionales de Mexico | 1 |
FWD
| Fort Worth & Denver | 2 |
FWHR
| FWHR | 1 |
FWRH
| FWRH | 2 |
FXE
| Ferromex | 1 |
GBW
| Green Bay & Western | 2 |
GETY
| Gettysburg Railroad | 1 |
GMO
| Gulf Mobile & Ohio | 6 |
GMRC
| Green Mountain RR | 2 |
GN
| Great Northern | 45 |
GNWR
| Genesee and Wyoming Railroad Company | 1 |
GOLD
| GOLD | 1 |
GSF
| Georgia Southern and Florida Railway Company | 1 |
GSM
| Great Smokey Mountains Railway | 6 |
GSMR
| Great Smoky Mountains | 2 |
GTDR
| GTDR | 1 |
GTLX
| Great Lakes Railcar, Inc. | 4 |
GTW
| Grand Trunk Western | 4 |
GWR
| Great Western Railway Company | 1 |
HBTM
| HBTM | 1 |
HIAW
| HIAW | 3 |
HODX
| Heart of Dixie Railway Museum | 2 |
HOLX
| HOLX | 1 |
HRRC
| Housatonic Railroad Company | 1 |
HVR
| HVR | 1 |
HVRX
| Heber Valley Historic Railroad | 1 |
IANR
| Iowa Northern Ry | 1 |
IC
| Illinois Central | 10 |
ICAP
| ICAP | 1 |
ICG
| Illinois Central Gulf | 1 |
IMRL
| I&M Rail Link | 1 |
INPR
| Idaho Northern and Pacific Railroad | 1 |
INVX
| Invista S A R L | 1 |
IR
| Illinois Railnet | 3 |
JESX
| James E Strates Shows | 1 |
JTCX
| Juniata Terminal | 1 |
JTFS
| JTFS | 1 |
KCS
| Kansas City Southern | 9 |
KKRR
| Knox and Kane Railroad Company | 3 |
LBC
| LBC | 1 |
LBR
| Lowville and Beaver River Railroad Compa | 1 |
LC
| Lancaster & Chester | 1 |
LGSR
| LGSR | 1 |
LI
| Long Island Rail Road Company | 9 |
LINC
| Lewis and Clark Railway Company | 1 |
LIRR
| Long Island Railroad | 2 |
LN
| Louisville & Nashville | 18 |
LSE
| LSE | 2 |
LSMT
| LSMT | 1 |
LSRM
| LSRM | 1 |
LSTX
| LSTX | 1 |
MCVX
| Massuchusetts Call/Volunteer Firefighters Assoc. | 1 |
MDRY
| Midland Railway Historical Association | 2 |
ME
| Morristown & Erie Railroad | 7 |
MEC
| Maine Central | 3 |
METX
| METRA | 2 |
MILW
| Milwaukee Road | 14 |
MKFX
| Century Rail Enterprises Inc. | 1 |
MLIX
| Melbo Land & Investment Co | 1 |
MMRX
| Double M Ranch Enterprises | 1 |
MNCX
| Minnesota Corn Processors Incorporated | 1 |
MNTX
| Minnesota Transportation Museum, Inc. | 2 |
MNZX
| MNZX | 1 |
MON
| Monon Route | 3 |
MONT
| MONT | 1 |
MP
| Missouri Pacific | 8 |
MPA
| Maryland and Pennsylvania Railroad | 1 |
MRLX
| Mid America Rail Car Leasing | 10 |
MRRR
| MRRR | 1 |
MRSR
| Mount Rainier Scenic | 2 |
MSTX
| MSTX | 3 |
NBNR
| Nicolet Badger Northern Railroad | 1 |
NCDO
| NCDO | 1 |
NDEM
| NDEM | 8 |
NF
| NF | 1 |
NFRM
| NFRM | 1 |
NH
| New Haven | 3 |
NHI
| NHI | 1 |
NHIR
| New Hope & Ivyland | 1 |
NHRR
| New Hope and Ivyland Rail Road | 1 |
NJT
| New Jersey Transit | 1 |
NKP
| Nickel Plate | 4 |
NP
| Northern Pacific | 30 |
NR
| NR | 1 |
NRE
| NRE | 2 |
NREX
| National Railway Equipment | 2 |
NRHX
| National Railway Historical Society | 1 |
NS
| Norfolk Southern | 1 |
NSHR
| North Shore | 3 |
NSR
| Newburgh and South Shore Railroad Compan | 3 |
NSRX
| Railroading Heritage Of Midwest America | 7 |
NSSR
| NSSR | 1 |
NW
| Norfolk & Western | 12 |
NYC
| New York Central | 19 |
NYGL
| New York and Greenwood Lake Railroad | 1 |
NYOW
| New York, Ontario & Western | 1 |
NYSW
| New York Susquehanna & Western | 1 |
ODCX
| Old Dominion Chapter | 2 |
OE
| Oregon Electric | 2 |
OHCR
| Ohio Central | 2 |
OKRX
| Oklahoma Railway Museum Ltd | 1 |
ONT
| Ontario Northland Railway | 2 |
ORL
| ORL | 1 |
PAR
| PAR | 1 |
PC
| Penn Central | 12 |
PLE
| Pittsburgh & Lake Erie | 2 |
PM
| Pere Marquette | 1 |
PNWC
| PNWC | 1 |
PPCX
| AAPRCO Register Private Cars | 11 |
PRPX
| Pacific Railroad Preservation Assoc | 2 |
PRR
| Pennsylvania Railroad | 29 |
PSRR
| PSRR | 1 |
RBBX
| Ringling Bros. and Barnum and Bailey | 10 |
RBMN
| Reading Blue Mountain & Northern | 5 |
RBX
| Ringling Bros. and Barnum and Bailey | 5 |
RDG
| Reading Railroad | 7 |
RETX
| RETX | 1 |
REX
| Railway Express Agency, Inc. | 7 |
RFFS
| RFFS | 3 |
RFP
| Richmond Fredericksburg & Potomac | 9 |
RFRX
| Rick Franklin Corporation | 1 |
RI
| RI | 1 |
RING
| RING | 1 |
RMR
| RMR | 1 |
RNRH
| RNRH | 1 |
ROPX
| Rail Operators Incorporated | 1 |
RPCX
| Railroad Passenger Car Numbering Bureau | 13 |
RRCX
| Radar Railcar Incorporated | 1 |
RTI
| Rail Tours | 2 |
RUMO
| RUMO | 1 |
RUT
| Vermont Railway Incorporated | 2 |
SAS
| South African Railways | 29 |
SBC
| Ferrocarril Sonora Baja California | 2 |
SBRX
| SBRX | 1 |
SCFE
| South Central Florida Express Incorporated | 1 |
SCL
| Seaboard Coast Line | 1 |
SDA
| SDA | 1 |
SFS
| Santa Fe Southern | 1 |
SHRR
| SHRR | 1 |
SIXX
| 636 Leasing | 1 |
SKTX
| Ansco Investment Co | 1 |
SLRG
| San Luis and Rio Grande Railroad | 2 |
SLRS
| SMS Rail Service Incorporated | 2 |
SLSF
| Saint Louis-San Francisco | 5 |
SLU
| SLU | 1 |
SMRX
| Atlanta Chapter B National Railway Historical Society Incorp | 1 |
SNC
| Saratoga & North Creek Railway | 1 |
SOO
| Soo Line | 1 |
SOU
| Southern | 32 |
SP
| Southern Pacific | 26 |
SPMW
| Southern Pacific Maintenance of Way | 4 |
SPP
| SPP | 1 |
SPPR
| SPPR | 1 |
SPS
| Spokane Portland & Seattle | 13 |
SRC
| Strasburg Railroad | 5 |
SRNJ
| Southern Railroad Company of New Jersey | 1 |
SRT
| SRT | 3 |
SRYC
| Sierra Railway Company of California | 1 |
SSW
| St Louis Southwestern (Cotton Belt) | 1 |
TCRX
| Tennessee Central Railway Musem | 5 |
TG
| TG | 1 |
TIOC
| Tioga Central | 1 |
TSCX
| The Steel Company of Canada, Ltd. | 2 |
TSR
| Texas State Railroad | 1 |
TVRM
| Tennessee Valley | 5 |
TWCX
| Tidewater Chapter, NRHS | 4 |
UP
| Union Pacific Railroad Company | 49 |
UPMW
| UPMW | 1 |
UPP
| Union Pacific Passenger | 10 |
USA
| USA | 1 |
USAF
| US Air Force | 2 |
USAX
| United States Army | 7 |
VIA
| Via Rail Canada | 27 |
VIRX
| Vancouver Island Heritage Railway | 1 |
VLJ
| VLJ | 1 |
VMTX
| VMTX | 2 |
VSPS
| VSPS | 1 |
VT
| Virginia & Truckee | 2 |
W
| W | 1 |
WAB
| Wabash | 1 |
WC
| Wisconsin Central | 2 |
WCRL
| West Chester Railroad Company | 1 |
WCRR
| WCRR | 1 |
WDTX
| WDTX | 1 |
WICT
| Wisconsin & Calumet | 1 |
WMSR
| Western Maryland Scenic | 1 |
WP
| Western Pacific | 3 |
WPRR
| Willamette and Pacific | 1 |
WPRX
| WPRX | 1 |
WRA
| Western Railway of Alabama | 1 |
WSOR
| Wisconsin & Southern | 2 |
WURR
| WURR | 1 |
YSLR
| Yolo Shortline Railroad Company | 1 |