AA
| Ann Arbor | 1 |
AGR
| Alabama and Gulf Coast | 18 |
ALAB
| Alabama Railroad | 1 |
ALM
| Arkansas Louisiana and Mississippi Railr | 4 |
ALY
| Allegheny and Eastern Railroad Incorpora | 1 |
AMTK
| Amtrak | 2 |
AOK
| Arkansas-Oklahoma Railroad | 19 |
ASAB
| Bay Line Railroad LLC | 1 |
ATSF
| Atchison Topeka & Santa Fe | 2 |
ATW
| Atlantic and Western | 15 |
BAEX
| Andersons | 4 |
BAR
| Bangor & Aroostook | 2 |
BCOL
| Canadian National Railways | 3 |
BM
| Boston & Maine | 1 |
BN
| Burlington Northern | 1 |
BNSF
| BNSF Railway | 28 |
BO
| Baltimore & Ohio | 10 |
CEI
| Chicago & Eastern Illinois | 1 |
CHTT
| Chicago Heights Terminal Transfer | 1 |
CIC
| Cedar Rapids & Iowa City | 1 |
CIL
| Chicago Indianapolis & Louisville (Monon | 2 |
CIRR
| Chattahoochee Industrial Railroad | 3 |
CMHX
| CarMath Incorporated | 1 |
CN
| Canadian National Railways | 15 |
CNA
| Canadian National Railways | 24 |
CNIS
| Canadian National Railways | 4 |
CNW
| Chicago & Northwestern | 8 |
CO
| Chesapeake & Ohio | 1 |
COER
| Crab Orchard & Egyptian | 5 |
CP
| Canadian Pacific Railway | 3 |
CR
| Conrail | 6 |
CRLE
| Coe Rail Incorporated | 11 |
CSX
| CSX Railroad | 35 |
CUOH
| Columbus and Ohio River Railroad Company | 1 |
CV
| Central Vermont | 1 |
DB
| Deutsche Bahn | 2 |
DMM
| Dansville and Mount Morris Railroad Comp | 2 |
DRGW
| Denver & Rio Grande Western | 6 |
DWC
| Canadian National Railways | 13 |
EEC
| East Erie Commercial Railroad | 48 |
EJE
| Elgin Joliet and Eastern | 5 |
EL
| Erie Lackawanna | 1 |
ERIE
| Erie Railroad | 1 |
FBOX
| TTX Company | 5 |
FGLK
| Finger Lakes Railway | 1 |
FRR
| Falls Road Railroad Company Incorporated | 1 |
FXE
| Ferromex | 1 |
GACX
| General American Marks Company | 1 |
GMRC
| Green Mountain RR | 10 |
GNWR
| Genesee and Wyoming Railroad Company | 4 |
GTRA
| Golden Triangle Railroad | 1 |
GTW
| Grand Trunk Western | 42 |
HATX
| Helm Financial Corporation | 1 |
HLMX
| Helm Financial Corporation | 2 |
HPJX
| Helm-Pacific Leasing | 1 |
HS
| H and S Railroad Company | 14 |
IANR
| Iowa Northern Ry | 9 |
IATR
| Iowa Traction Railroad Company | 1 |
IBT
| International Bridge and Terminal Company | 20 |
IC
| Illinois Central | 5 |
ICG
| Illinois Central Gulf | 6 |
KCS
| Kansas City Southern | 19 |
LBR
| Lowville and Beaver River Railroad Compa | 6 |
LRS
| Laurinburg and Southern | 6 |
LW
| Louisville and Wadley Railway Company | 25 |
MB
| Meridian & Bigbee | 1 |
MCSA
| Moscow Camden and San Augustine Railroad | 1 |
MDW
| Minnesota Dakota and Western Railway Com | 16 |
MEC
| Maine Central | 3 |
MET
| Modesto and Empire Traction Company | 2 |
MKT
| Missouri-Kansas-Texas | 1 |
MNS
| Minneapolis Northfield & Southern | 1 |
MON
| Monon Route | 6 |
MP
| Missouri Pacific | 19 |
MQT
| Marquette Rail | 2 |
MRL
| Montana Rail Link | 10 |
MRS
| Manufacturers Railway | 1 |
MSDR
| Knoxville & Holston River Railroad | 5 |
NACC
| NACC | 2 |
NADX
| General Electric Rail Services | 8 |
NKCR
| Nebraska, Kansas & Colorado RailNet, Inc | 7 |
NKP
| Nickel Plate | 7 |
NOKL
| Northwestern Oklahoma | 8 |
NP
| Northern Pacific | 1 |
NS
| Norfolk Southern | 31 |
NW
| Norfolk & Western | 2 |
NYC
| New York Central | 5 |
NYSW
| New York Susquehanna & Western | 2 |
OAR
| Old Augusta Railroad | 4 |
OHCR
| Ohio Central | 1 |
ONT
| Ontario Northland Railway | 2 |
PAL
| Paducah & Louisville | 1 |
PC
| Penn Central | 6 |
PDRR
| Pee Dee River RR | 3 |
PICK
| Pickens Railway | 1 |
PRR
| Pennsylvania Railroad | 7 |
QC
| Quebec Central | 8 |
RBOX
| Railbox Company | 5 |
RMGX
| Andersons - Railgroup | 1 |
RPCX
| Railroad Passenger Car Numbering Bureau | 2 |
SCL
| Seaboard Coast Line | 2 |
SGLR
| Seminole Gulf | 1 |
SLC
| San Luis Central Railroad Company | 1 |
SLR
| St Lawrence & Atlantic | 7 |
SLSF
| Saint Louis-San Francisco | 2 |
SMW
| St Marys Railway West LLC | 2 |
SNC
| Saratoga & North Creek Railway | 2 |
SOU
| Southern | 30 |
SP
| Southern Pacific | 11 |
SRN
| Sabine River & Northern | 4 |
SRY
| Southern Railway of British Columbia Lim | 8 |
SSAM
| Sault Ste. Marie Bridge Company (Canadia | 1 |
SSW
| St Louis Southwestern (Cotton Belt) | 12 |
TBOX
| TTX Company | 7 |
TCWR
| Twin Cities and Western | 1 |
TFM
| Kansas City Southern De Mexico | 1 |
TOFX
| TTX Company - Box Cars | 1 |
TR
| Tomahawk Railway L.P. | 36 |
UP
| Union Pacific Railroad Company | 13 |
WAB
| Wabash | 4 |
WC
| Wisconsin Central | 13 |
WCCL
| Wisconsin Central | 2 |
WLO
| Waterloo Railway Company (Illinois Central) | 4 |
WM
| Western Maryland | 4 |
WP
| Western Pacific | 2 |
WRWK
| Providence & Worchester Railroad | 2 |
WSOR
| Wisconsin & Southern | 3 |
YKR
| York Rail | 7 |