ABOX
| TTX Company | 19 |
AGR
| Alabama and Gulf Coast | 6 |
AKMD
| Arkansas Midland Railroad Company | 1 |
ALY
| Allegheny and Eastern Railroad Incorpora | 1 |
ANR
| Angelina and Neches River Railroad | 2 |
AOK
| Arkansas-Oklahoma Railroad | 4 |
AR
| Aberdeen and Rockfish | 1 |
ASAB
| Bay Line Railroad LLC | 1 |
ATW
| Atlantic and Western | 6 |
BB
| Buckingham Branch | 1 |
BKTY
| Union Pacific Railroad Company | 1 |
BN
| Burlington Northern | 1 |
BNSF
| BNSF Railway | 3 |
BPRR
| Buffalo and Pittsburgh | 1 |
CAIX
| CAI Rail Inc. | 1 |
CEFX
| CIT Group/Capital Finance, Inc | 1 |
CIRR
| Chattahoochee Industrial Railroad | 4 |
CN
| Canadian National Railways | 4 |
CNA
| Canadian National Railways | 4 |
CNIS
| Canadian National Railways | 1 |
COER
| Crab Orchard & Egyptian | 3 |
CP
| Canadian Pacific Railway | 1 |
CR
| Conrail | 1 |
CRLE
| Coe Rail Incorporated | 3 |
CSX
| CSX Railroad | 58 |
CUOH
| Columbus and Ohio River Railroad Company | 2 |
CV
| Central Vermont | 2 |
DWC
| Canadian National Railways | 3 |
EEC
| East Erie Commercial Railroad | 16 |
FBOX
| TTX Company | 18 |
FGLK
| Finger Lakes Railway | 1 |
FSRR
| FerroSur | 1 |
FXE
| Ferromex | 1 |
GFRR
| Georgia and Florida Railnet | 2 |
GMRC
| Green Mountain RR | 2 |
GNWR
| Genesee and Wyoming Railroad Company | 3 |
GTRA
| Golden Triangle Railroad | 2 |
GTW
| Grand Trunk Western | 1 |
HCRY
| Huron Central Railway | 1 |
HLMX
| Helm Financial Corporation | 1 |
HS
| H and S Railroad Company | 9 |
IANR
| Iowa Northern Ry | 1 |
IBT
| International Bridge and Terminal Company | 2 |
KCS
| Kansas City Southern | 17 |
LRS
| Laurinburg and Southern | 3 |
LW
| Louisville and Wadley Railway Company | 1 |
MB
| Meridian & Bigbee | 1 |
MDDE
| Maryland and Delaware Railroad | 3 |
MDW
| Minnesota Dakota and Western Railway Com | 1 |
MEC
| Maine Central | 2 |
MP
| Missouri Pacific | 3 |
MPA
| Maryland and Pennsylvania Railroad | 6 |
MRS
| Manufacturers Railway | 1 |
NOKL
| Northwestern Oklahoma | 3 |
NS
| Norfolk Southern | 24 |
NYC
| New York Central | 4 |
PDRR
| Pee Dee River RR | 8 |
RBOX
| Railbox Company | 33 |
RUT
| Vermont Railway Incorporated | 1 |
SGLR
| Seminole Gulf | 1 |
SOU
| Southern | 14 |
SP
| Southern Pacific | 1 |
SRN
| Sabine River & Northern | 1 |
SRY
| Southern Railway of British Columbia Lim | 1 |
SSW
| St Louis Southwestern (Cotton Belt) | 2 |
TBOX
| TTX Company | 17 |
TOFX
| TTX Company - Box Cars | 1 |
TR
| Tomahawk Railway L.P. | 1 |
UP
| Union Pacific Railroad Company | 1 |
WC
| Wisconsin Central | 10 |
WCOR
| Wellsboro and Corning Railroad Company | 1 |
WFRX
| WELLS FARGO RAIL CORPORATION | 1 |
WRWK
| Providence & Worchester Railroad | 2 |
YKR
| York Rail | 4 |
YVRR
| Yadkin Valley | 1 |