ABOX
| TTX Company | 1 |
ALM
| Arkansas Louisiana and Mississippi Railr | 2 |
AOK
| Arkansas-Oklahoma Railroad | 4 |
APA
| Apache Railway Company | 2 |
ATSF
| Atchison Topeka & Santa Fe | 2 |
ATW
| Atlantic and Western | 1 |
BN
| Burlington Northern | 9 |
BNSF
| BNSF Railway | 45 |
CNA
| Canadian National Railways | 2 |
CNW
| Chicago & Northwestern | 2 |
CRLE
| Coe Rail Incorporated | 4 |
CSX
| CSX Railroad | 1 |
FBOX
| TTX Company | 1 |
FGLK
| Finger Lakes Railway | 2 |
FP
| Fordyce & Princeton Railroad Company | 3 |
GVSR
| Galveston Railroad L.P. | 1 |
HS
| H and S Railroad Company | 1 |
IBT
| International Bridge and Terminal Company | 1 |
KCS
| Kansas City Southern | 1 |
KRR
| Kiamichi | 1 |
LW
| Louisville and Wadley Railway Company | 3 |
MB
| Meridian & Bigbee | 2 |
MDW
| Minnesota Dakota and Western Railway Com | 5 |
MP
| Missouri Pacific | 1 |
MREX
| Monad Railway Equipment Company | 4 |
MRL
| Montana Rail Link | 1 |
NKCR
| Nebraska, Kansas & Colorado RailNet, Inc | 1 |
NS
| Norfolk Southern | 2 |
RBOX
| Railbox Company | 1 |
SOU
| Southern | 1 |
SP
| Southern Pacific | 6 |
SRY
| Southern Railway of British Columbia Lim | 1 |
SSW
| St Louis Southwestern (Cotton Belt) | 2 |
TBOX
| TTX Company | 3 |
TOE
| Texas Oklahoma and Eastern RR Company | 3 |
TR
| Tomahawk Railway L.P. | 3 |
WC
| Wisconsin Central | 12 |
WLO
| Waterloo Railway Company (Illinois Central) | 1 |