BN
| Burlington Northern | 6 |
BO
| Baltimore & Ohio | 3 |
CBQ
| Chicago Burlington & Quincy | 6 |
DTI
| Detroit Toledo & Ironton | 2 |
FNM
| Ferrocarriles Nacionales de Mexico | 39 |
FSRR
| FerroSur | 1 |
FXE
| Ferromex | 19 |
ICG
| Illinois Central Gulf | 1 |
ITC
| Illinois Terminal Railroad | 1 |
JV
| JV | 3 |
KCSM
| Kansas City Southern De Mexico | 19 |
LN
| Louisville & Nashville | 6 |
MILW
| Milwaukee Road | 7 |
NDEM
| NDEM | 157 |
NW
| Norfolk & Western | 9 |
SOO
| Soo Line | 5 |
TFM
| Kansas City Southern De Mexico | 3 |
UP
| Union Pacific Railroad Company | 4 |