ABOX
| TTX Company | 1 |
AGR
| Alabama and Gulf Coast | 4 |
ALM
| Arkansas Louisiana and Mississippi Railr | 1 |
AN
| Apalachicola Northern | 2 |
AOK
| Arkansas-Oklahoma Railroad | 1 |
ATSF
| Atchison Topeka & Santa Fe | 2 |
ATW
| Atlantic and Western | 3 |
BKTY
| Union Pacific Railroad Company | 1 |
BN
| Burlington Northern | 1 |
BNSF
| BNSF Railway | 2 |
CFWR
| Caney Fork and Western Railroad | 3 |
CO
| Chesapeake & Ohio | 1 |
CR
| Conrail | 2 |
CRLE
| Coe Rail Incorporated | 1 |
CSX
| CSX Railroad | 21 |
EEC
| East Erie Commercial Railroad | 4 |
FBOX
| TTX Company | 5 |
FCRD
| First Coast Railway | 1 |
FXE
| Ferromex | 4 |
GA
| Georgia Railroad | 3 |
GMRC
| Green Mountain RR | 2 |
GTW
| Grand Trunk Western | 1 |
HS
| H and S Railroad Company | 4 |
IBT
| International Bridge and Terminal Company | 1 |
IC
| Illinois Central | 1 |
KCS
| Kansas City Southern | 6 |
LRS
| Laurinburg and Southern | 3 |
MCSA
| Moscow Camden and San Augustine Railroad | 2 |
MDW
| Minnesota Dakota and Western Railway Com | 1 |
MP
| Missouri Pacific | 4 |
MSDR
| Knoxville & Holston River Railroad | 1 |
MWCX
| Midwest Railcar Corporation | 1 |
NDYX
| First Union Rail | 1 |
NOKL
| Northwestern Oklahoma | 2 |
NS
| Norfolk Southern | 79 |
NW
| Norfolk & Western | 2 |
PMRX
| Progress Metal Reclamation Company | 1 |
RBOX
| Railbox Company | 4 |
SOO
| Soo Line | 1 |
SOU
| Southern | 81 |
SP
| Southern Pacific | 1 |
SRN
| Sabine River & Northern | 1 |
SSW
| St Louis Southwestern (Cotton Belt) | 1 |
TBOX
| TTX Company | 8 |
TOE
| Texas Oklahoma and Eastern RR Company | 2 |
TR
| Tomahawk Railway L.P. | 1 |
WC
| Wisconsin Central | 4 |
WCCL
| Wisconsin Central | 2 |
WGCR
| Wiregrass Central Railroad. Incorporated | 2 |
WLO
| Waterloo Railway Company (Illinois Central) | 1 |
WRWK
| Providence & Worchester Railroad | 1 |