AA
| Ann Arbor | 7 |
ABOX
| TTX Company | 5 |
ALM
| Arkansas Louisiana and Mississippi Railr | 1 |
AM
| Arkansas & Missouri | 5 |
ANAX
| General Electric Rail Services | 1 |
ANR
| Angelina and Neches River Railroad | 3 |
AOK
| Arkansas-Oklahoma Railroad | 23 |
APAX
| Cimentos Apasco S.A. De C.V. | 23 |
ATW
| Atlantic and Western | 10 |
BAEX
| Andersons | 1 |
BCOL
| Canadian National Railways | 1 |
BKTY
| Union Pacific Railroad Company | 19 |
BNSF
| BNSF Railway | 6 |
BO
| Baltimore & Ohio | 2 |
CEMX
| Cemex Mexico SA de CV | 110 |
CFWR
| Caney Fork and Western Railroad | 1 |
CHTT
| Chicago Heights Terminal Transfer | 10 |
CN
| Canadian National Railways | 10 |
CNA
| Canadian National Railways | 35 |
CNIS
| Canadian National Railways | 1 |
CNW
| Chicago & Northwestern | 3 |
COER
| Crab Orchard & Egyptian | 28 |
CP
| Canadian Pacific Railway | 28 |
CPAA
| Canadian Pacific Railway | 1 |
CR
| Conrail | 16 |
CRLE
| Coe Rail Incorporated | 2 |
CSX
| CSX Railroad | 50 |
CYZ
| CYZ | 10 |
DME
| Dakota, Minnesota and Eastern | 9 |
DOT
| DOT | 1 |
DOTX
| USDOT/Federal Railroad Administration | 2 |
DWC
| Canadian National Railways | 15 |
EEC
| East Erie Commercial Railroad | 33 |
ENDX
| GATX de Mexico SA de CV | 18 |
EVEX
| EVEX | 1 |
FBOX
| TTX Company | 20 |
FCM
| Ferrocarriles Nacionales de Mexico | 6 |
FCRD
| First Coast Railway | 6 |
FSRR
| FerroSur | 131 |
FURX
| First Union Rail | 9 |
FXE
| Ferromex | 286 |
GACX
| General American Marks Company | 1 |
GAMX
| Arrendadora Nacional De Carros De Ferrocaril | 3 |
GARX
| General American Marks Company | 9 |
GNRR
| Georgia Northeastern | 1 |
GNWR
| Genesee and Wyoming Railroad Company | 11 |
GTRA
| Golden Triangle Railroad | 1 |
GTW
| Grand Trunk Western | 46 |
HESR
| Huron and Eastern | 6 |
HLMX
| Helm Financial Corporation | 1 |
HPJX
| Helm-Pacific Leasing | 3 |
HS
| H and S Railroad Company | 20 |
IANR
| Iowa Northern Ry | 1 |
IBT
| International Bridge and Terminal Company | 3 |
IC
| Illinois Central | 1 |
JV
| JV | 3 |
KCS
| Kansas City Southern | 54 |
KCSM
| Kansas City Southern De Mexico | 22 |
KRR
| Kiamichi | 3 |
KYLE
| Kyle Railroad | 1 |
LFCD
| Linea Coahuila Durango S.A. de C.V. | 8 |
LRS
| Laurinburg and Southern | 14 |
MILW
| Milwaukee Road | 1 |
MKT
| Missouri-Kansas-Texas | 1 |
MMA
| Montreal, Maine & Atlantic | 1 |
MNS
| Minneapolis Northfield & Southern | 4 |
MP
| Missouri Pacific | 15 |
MR
| McCloud Railway Company | 3 |
MTNR
| Mississippi Tennessee Railroad LLC | 3 |
NADX
| General Electric Rail Services | 1 |
NDEM
| NDEM | 68 |
NDYX
| First Union Rail | 1 |
NH
| New Haven | 1 |
NKCR
| Nebraska, Kansas & Colorado RailNet, Inc | 136 |
NOKL
| Northwestern Oklahoma | 9 |
NS
| Norfolk Southern | 153 |
NW
| Norfolk & Western | 21 |
NYC
| New York Central | 21 |
PLCX
| General Electric Rail Services | 2 |
QC
| Quebec Central | 2 |
RBOX
| Railbox Company | 108 |
RJCM
| R.J. Corman Railroad Company/ Memphis Li | 2 |
SNC
| Saratoga & North Creek Railway | 1 |
SOO
| Soo Line | 8 |
SOU
| Southern | 31 |
SP
| Southern Pacific | 20 |
SRN
| Sabine River & Northern | 15 |
SSW
| St Louis Southwestern (Cotton Belt) | 3 |
TBOX
| TTX Company | 192 |
TCAX
| General Electric Rail Services | 3 |
TFM
| Kansas City Southern De Mexico | 16 |
TOBX
| TTX Company - Box Cars | 5 |
TOE
| Texas Oklahoma and Eastern RR Company | 4 |
TR
| Tomahawk Railway L.P. | 14 |
TSBY
| Great Lakes Central Railroad | 1 |
TSE
| Texas South-Eastern Railroad Company | 7 |
UCRY
| Utah Central | 24 |
UP
| Union Pacific Railroad Company | 38 |
WC
| Wisconsin Central | 5 |
WE
| Wheeling & Lake Erie | 1 |
WRWK
| Providence & Worchester Railroad | 7 |