ABOX
| TTX Company | 1 |
AERC
| Albany and Eastern Railroad Company | 7 |
ALAB
| Alabama Railroad | 1 |
ATW
| Atlantic and Western | 5 |
BAEX
| Andersons | 3 |
BCOL
| Canadian National Railways | 2 |
BN
| Burlington Northern | 19 |
BNSF
| BNSF Railway | 34 |
CEFX
| CIT Group/Capital Finance, Inc | 2 |
CHTT
| Chicago Heights Terminal Transfer | 3 |
CN
| Canadian National Railways | 1 |
CNA
| Canadian National Railways | 7 |
CNW
| Chicago & Northwestern | 17 |
COER
| Crab Orchard & Egyptian | 3 |
CP
| Canadian Pacific Railway | 15 |
CPAA
| Canadian Pacific Railway | 1 |
CRLE
| Coe Rail Incorporated | 11 |
CSX
| CSX Railroad | 24 |
CVC
| Canadian National Railways | 1 |
DME
| Dakota, Minnesota and Eastern | 10 |
DMM
| Dansville and Mount Morris Railroad Comp | 12 |
DRGW
| Denver & Rio Grande Western | 12 |
DWC
| Canadian National Railways | 2 |
EEC
| East Erie Commercial Railroad | 12 |
FBOX
| TTX Company | 24 |
FGLK
| Finger Lakes Railway | 1 |
FSRR
| FerroSur | 1 |
FXE
| Ferromex | 1 |
GACX
| General American Marks Company | 1 |
GMRC
| Green Mountain RR | 1 |
GNRR
| Georgia Northeastern | 4 |
GNWR
| Genesee and Wyoming Railroad Company | 3 |
GTW
| Grand Trunk Western | 2 |
GVSR
| Galveston Railroad L.P. | 7 |
HATX
| Helm Financial Corporation | 1 |
HLMX
| Helm Financial Corporation | 1 |
HS
| H and S Railroad Company | 9 |
IBOX
| TTX Company | 1 |
IBT
| International Bridge and Terminal Company | 27 |
IC
| Illinois Central | 1 |
ICG
| Illinois Central Gulf | 1 |
LBR
| Lowville and Beaver River Railroad Compa | 1 |
LNAC
| Chattahoochee Bay Railroad, LLC | 1 |
LRS
| Laurinburg and Southern | 11 |
LW
| Louisville and Wadley Railway Company | 6 |
MDW
| Minnesota Dakota and Western Railway Com | 5 |
MET
| Modesto and Empire Traction Company | 15 |
MP
| Missouri Pacific | 48 |
MR
| McCloud Railway Company | 1 |
MRL
| Montana Rail Link | 2 |
MWCX
| Midwest Railcar Corporation | 3 |
NADX
| General Electric Rail Services | 2 |
NKCR
| Nebraska, Kansas & Colorado RailNet, Inc | 1 |
NOKL
| Northwestern Oklahoma | 2 |
NS
| Norfolk Southern | 2 |
NSHR
| North Shore | 5 |
RBOX
| Railbox Company | 16 |
SLC
| San Luis Central Railroad Company | 1 |
SLGG
| Progress Rail Services Corporation | 1 |
SOU
| Southern | 2 |
SP
| Southern Pacific | 92 |
SRAX
| Southern Rail Associates | 2 |
SRN
| Sabine River & Northern | 2 |
SRY
| Southern Railway of British Columbia Lim | 3 |
SSW
| St Louis Southwestern (Cotton Belt) | 41 |
STE
| Stockton Terminal and Eastern RR | 3 |
TBOX
| TTX Company | 39 |
TCWR
| Twin Cities and Western | 9 |
TR
| Tomahawk Railway L.P. | 1 |
UP
| Union Pacific Railroad Company | 63 |
UPP
| Union Pacific Passenger | 1 |
VCY
| Galveston Railroad, L.P. | 2 |
VR
| Valdosta Railway | 1 |
WC
| Wisconsin Central | 1 |
WCCL
| Wisconsin Central | 2 |
WCOR
| Wellsboro and Corning Railroad Company | 3 |
WCTR
| WCTU Company White City Terminal Railway | 1 |
WGCR
| Wiregrass Central Railroad. Incorporated | 2 |
WP
| Western Pacific | 19 |
WSOR
| Wisconsin & Southern | 50 |
YARR
| Youngstown and Austintown Railroad | 1 |