ABOX
| TTX Company | 40 |
AGR
| Alabama and Gulf Coast | 92 |
ALM
| Arkansas Louisiana and Mississippi Railr | 3 |
ANR
| Angelina and Neches River Railroad | 2 |
AOK
| Arkansas-Oklahoma Railroad | 71 |
ATSF
| Atchison Topeka & Santa Fe | 8 |
ATW
| Atlantic and Western | 27 |
BAEX
| Andersons | 4 |
BAYL
| Bay Line, LLC | 3 |
BCOL
| Canadian National Railways | 1 |
BKTY
| Union Pacific Railroad Company | 28 |
BM
| Boston & Maine | 2 |
BNSF
| BNSF Railway | 13 |
CAGY
| Columbus & Greenville Railway | 1 |
CAMY
| CAMP CHASE RAILWAY COMPANY, LLC | 2 |
CIRR
| Chattahoochee Industrial Railroad | 5 |
CMQ
| CENTRAL MAINE & QUEBEC RAILWAY | 3 |
CN
| Canadian National Railways | 6 |
CNA
| Canadian National Railways | 5 |
CNIS
| Canadian National Railways | 5 |
CNW
| Chicago & Northwestern | 1 |
COER
| Crab Orchard & Egyptian | 7 |
CP
| Canadian Pacific Railway | 5 |
CRLE
| Coe Rail Incorporated | 2 |
CSX
| CSX Railroad | 185 |
DWC
| Canadian National Railways | 4 |
FBOX
| TTX Company | 48 |
FCRD
| First Coast Railway | 9 |
FGLK
| Finger Lakes Railway | 3 |
GACX
| General American Marks Company | 5 |
GFRR
| Georgia and Florida Railnet | 1 |
GMRC
| Green Mountain RR | 5 |
GNRR
| Georgia Northeastern | 3 |
GNWR
| Genesee and Wyoming Railroad Company | 1 |
GTW
| Grand Trunk Western | 3 |
HCRY
| Huron Central Railway | 2 |
HS
| H and S Railroad Company | 11 |
IANR
| Iowa Northern Ry | 8 |
IBT
| International Bridge and Terminal Company | 3 |
IC
| Illinois Central | 3 |
ITFX
| INFINITY TRANSPORTATION III LLC | 1 |
KCS
| Kansas City Southern | 8 |
KXHR
| Knoxville & Holston River RR | 1 |
LRS
| Laurinburg and Southern | 61 |
LW
| Louisville and Wadley Railway Company | 11 |
MB
| Meridian & Bigbee | 2 |
MDW
| Minnesota Dakota and Western Railway Com | 4 |
MEC
| Maine Central | 1 |
MQT
| Marquette Rail | 1 |
NDYX
| First Union Rail | 4 |
NKCR
| Nebraska, Kansas & Colorado RailNet, Inc | 2 |
NOKL
| Northwestern Oklahoma | 7 |
NS
| Norfolk Southern | 68 |
NYC
| New York Central | 1 |
OAR
| Old Augusta Railroad | 4 |
PDRR
| Pee Dee River RR | 1 |
PMRX
| Progress Metal Reclamation Company | 4 |
QC
| Quebec Central | 2 |
RBOX
| Railbox Company | 83 |
SGLR
| Seminole Gulf | 1 |
SMW
| St Marys Railway West LLC | 1 |
SNC
| Saratoga & North Creek Railway | 11 |
SOU
| Southern | 55 |
SOUT
| SOUT | 6 |
SP
| Southern Pacific | 3 |
SRN
| Sabine River & Northern | 3 |
SRY
| Southern Railway of British Columbia Lim | 3 |
SSW
| St Louis Southwestern (Cotton Belt) | 2 |
TBOX
| TTX Company | 155 |
TFM
| Kansas City Southern De Mexico | 1 |
TOBX
| TTX Company - Box Cars | 1 |
TOFX
| TTX Company - Box Cars | 6 |
TR
| Tomahawk Railway L.P. | 12 |
UCRY
| Utah Central | 8 |
UP
| Union Pacific Railroad Company | 2 |
WC
| Wisconsin Central | 13 |
WCCL
| Wisconsin Central | 1 |
WP
| Western Pacific | 1 |
WRWK
| Providence & Worchester Railroad | 39 |
YKR
| York Rail | 4 |