ATSF
| Atchison Topeka & Santa Fe | 8 |
BN
| Burlington Northern | 7 |
BNSF
| BNSF Railway | 8 |
CN
| Canadian National Railways | 3 |
COER
| Crab Orchard & Egyptian | 1 |
CP
| Canadian Pacific Railway | 2 |
CR
| Conrail | 166 |
CSX
| CSX Railroad | 31 |
DRGW
| Denver & Rio Grande Western | 4 |
FXE
| Ferromex | 3 |
GT
| GT | 1 |
GTW
| Grand Trunk Western | 4 |
KCS
| Kansas City Southern | 4 |
LN
| Louisville & Nashville | 1 |
MKT
| Missouri-Kansas-Texas | 1 |
MKTP
| MKTP | 1 |
MP
| Missouri Pacific | 1 |
NOKL
| Northwestern Oklahoma | 3 |
NS
| Norfolk Southern | 56 |
NW
| Norfolk & Western | 1 |
RP
| Railpool | 1 |
SOO
| Soo Line | 1 |
SP
| Southern Pacific | 7 |
TNM
| Union Pacific Railroad Company | 5 |
TTTX
| TTX Company | 3 |
UP
| Union Pacific Railroad Company | 16 |
WLO
| Waterloo Railway Company (Illinois Central) | 1 |
WP
| Western Pacific | 1 |