ADN
| Ashley Drew & Northern | 2 |
AGLF
| Knoxville & Holston River Railroad | 1 |
AGR
| Alabama and Gulf Coast | 8 |
ALAB
| Alabama Railroad | 2 |
AM
| Arkansas & Missouri | 1 |
AN
| Apalachicola Northern | 2 |
ANR
| Angelina and Neches River Railroad | 1 |
AOK
| Arkansas-Oklahoma Railroad | 8 |
ATSF
| Atchison Topeka & Santa Fe | 1 |
ATW
| Atlantic and Western | 3 |
BAEX
| Andersons | 1 |
BAR
| Bangor & Aroostook | 2 |
BAYL
| Bay Line, LLC | 3 |
BCOL
| Canadian National Railways | 1 |
BKTY
| Union Pacific Railroad Company | 4 |
BN
| Burlington Northern | 4 |
BNSF
| BNSF Railway | 3 |
CAGY
| Columbus & Greenville Railway | 5 |
CN
| Canadian National Railways | 2 |
CNA
| Canadian National Railways | 4 |
CNIS
| Canadian National Railways | 2 |
CNW
| Chicago & Northwestern | 4 |
COER
| Crab Orchard & Egyptian | 2 |
CR
| Conrail | 3 |
CRLE
| Coe Rail Incorporated | 3 |
CSX
| CSX Railroad | 10 |
EEC
| East Erie Commercial Railroad | 7 |
FBOX
| TTX Company | 2 |
FSRR
| FerroSur | 6 |
FXE
| Ferromex | 2 |
GMRC
| Green Mountain RR | 1 |
GMSR
| Kansas City Southern | 2 |
GNWR
| Genesee and Wyoming Railroad Company | 1 |
GSWR
| Georgia Southwestern | 2 |
GTRA
| Golden Triangle Railroad | 3 |
GTW
| Grand Trunk Western | 2 |
HS
| H and S Railroad Company | 4 |
IBT
| International Bridge and Terminal Company | 4 |
IC
| Illinois Central | 2 |
ICG
| Illinois Central Gulf | 2 |
KCS
| Kansas City Southern | 16 |
LACX
| Goodyear Tire and Rubber Company | 1 |
LNAC
| Chattahoochee Bay Railroad, LLC | 1 |
LRS
| Laurinburg and Southern | 1 |
LVRC
| Lamoille Valley | 1 |
LW
| Louisville and Wadley Railway Company | 2 |
MP
| Missouri Pacific | 2 |
MSDR
| Knoxville & Holston River Railroad | 1 |
NOKL
| Northwestern Oklahoma | 3 |
NS
| Norfolk Southern | 49 |
NW
| Norfolk & Western | 1 |
NYC
| New York Central | 1 |
OAR
| Old Augusta Railroad | 1 |
OUCH
| Ouachita Railroad | 1 |
RBOX
| Railbox Company | 2 |
SFLC
| BNSF Railway | 1 |
SLGG
| Progress Rail Services Corporation | 1 |
SLR
| St Lawrence & Atlantic | 3 |
SM
| St. Marys Railroad | 1 |
SOO
| Soo Line | 1 |
SOU
| Southern | 16 |
SP
| Southern Pacific | 3 |
SRN
| Sabine River & Northern | 1 |
TASD
| Terminal Alabama State Docks | 2 |
TBOX
| TTX Company | 22 |
TOBX
| TTX Company - Box Cars | 1 |
TOFX
| TTX Company - Box Cars | 1 |
TR
| Tomahawk Railway L.P. | 2 |
YKR
| York Rail | 1 |