AMTK
| Amtrak | 2 |
ATSF
| Atchison Topeka & Santa Fe | 121 |
AZER
| Arizona Eastern Railway Company | 2 |
BAEX
| Andersons | 1 |
BN
| Burlington Northern | 7 |
BNSF
| BNSF Railway | 11 |
CIC
| Cedar Rapids & Iowa City | 1 |
CNW
| Chicago & Northwestern | 2 |
CS
| Colorado & Southern | 3 |
DMM
| Dansville and Mount Morris Railroad Comp | 1 |
DRGW
| Denver & Rio Grande Western | 15 |
FBOX
| TTX Company | 2 |
FCCM
| Compania de Ferrocarriles Chiapas Mayab | 1 |
FSRR
| FerroSur | 1 |
FXE
| Ferromex | 6 |
GWR
| Great Western Railway Company | 2 |
HATX
| Helm Financial Corporation | 2 |
IBT
| International Bridge and Terminal Company | 1 |
ICG
| Illinois Central Gulf | 1 |
KCS
| Kansas City Southern | 1 |
KCSM
| Kansas City Southern De Mexico | 1 |
LRS
| Laurinburg and Southern | 1 |
MEC
| Maine Central | 1 |
MKT
| Missouri-Kansas-Texas | 2 |
MP
| Missouri Pacific | 7 |
NDEM
| NDEM | 8 |
NN
| Northern Nevada Railroad Corporation | 4 |
NS
| Norfolk Southern | 2 |
NWR
| Nashville & Western Railroad Corp. | 1 |
RBOX
| Railbox Company | 9 |
SAL
| Seaboard Air Line | 1 |
SFRB
| Santa Fe | 1 |
SOU
| Southern | 5 |
SP
| Southern Pacific | 15 |
SSW
| St Louis Southwestern (Cotton Belt) | 9 |
TBOX
| TTX Company | 3 |
TFM
| Kansas City Southern De Mexico | 3 |
TR
| Tomahawk Railway L.P. | 1 |
UP
| Union Pacific Railroad Company | 8 |
UPP
| Union Pacific Passenger | 1 |
WC
| Wisconsin Central | 1 |
WP
| Western Pacific | 3 |
WRWK
| Providence & Worchester Railroad | 1 |