BN
| Burlington Northern | 4 |
BNSF
| BNSF Railway | 5 |
CN
| Canadian National Railways | 1 |
CNW
| Chicago & Northwestern | 5 |
CP
| Canadian Pacific Railway | 5 |
CR
| Conrail | 356 |
CSS
| Chicago South Shore And South Bend | 38 |
CSX
| CSX Railroad | 169 |
CTRN
| Union Pacific Railroad Company | 4 |
CUVA
| ISG Cleveland Works Railway Company | 1 |
EJE
| Elgin Joliet and Eastern | 178 |
GTW
| Grand Trunk Western | 3 |
GVSR
| Galveston Railroad L.P. | 1 |
IC
| Illinois Central | 2 |
ICE
| Iowa Chicago and Eastern | 12 |
IHB
| Indiana Harbor Belt | 24 |
IMRL
| I&M Rail Link | 5 |
INLX
| Incoal Company | 297 |
KCS
| Kansas City Southern | 1 |
LRWN
| Little Rock & Western | 2 |
LW
| Louisville and Wadley Railway Company | 7 |
MILW
| Milwaukee Road | 1 |
MKT
| Missouri-Kansas-Texas | 1 |
MP
| Missouri Pacific | 4 |
NOKL
| Northwestern Oklahoma | 5 |
NS
| Norfolk Southern | 752 |
NSAX
| National Steel Corporation | 23 |
NW
| Norfolk & Western | 56 |
NYC
| New York Central | 48 |
SCIH
| South Chicago & Indiana Harbor Railway C | 4 |
SFS
| Santa Fe Southern | 1 |
SIMX
| Sturgis Iron & Metal | 1 |
SOO
| Soo Line | 1 |
SOU
| Southern | 56 |
TR
| Tomahawk Railway L.P. | 32 |
UP
| Union Pacific Railroad Company | 22 |
WCTR
| WCTU Company White City Terminal Railway | 1 |
WE
| Wheeling & Lake Erie | 27 |