AOK
| Arkansas-Oklahoma Railroad | 11 |
ATSF
| Atchison Topeka & Santa Fe | 3 |
ATW
| Atlantic and Western | 9 |
BHRR
| Birmingham Terminal Railway | 51 |
BN
| Burlington Northern | 7 |
BNSF
| BNSF Railway | 54 |
BS
| Birmingham Southern RR | 4 |
CAGY
| Columbus & Greenville Railway | 1 |
CBFX
| THE CIT GROUP/EQUIPMENT FINANCING INC | 1 |
CHTT
| Chicago Heights Terminal Transfer | 53 |
CIGX
| THE CIT GROUP/CAPITAL FINANCE, INC. | 1 |
CN
| Canadian National Railways | 1 |
CNW
| Chicago & Northwestern | 28 |
CO
| Chesapeake & Ohio | 1 |
COER
| Crab Orchard & Egyptian | 18 |
CP
| Canadian Pacific Railway | 1 |
CR
| Conrail | 54 |
CSS
| Chicago South Shore And South Bend | 6 |
CSX
| CSX Railroad | 72 |
CTRN
| Union Pacific Railroad Company | 5 |
EJE
| Elgin Joliet and Eastern | 5 |
FXE
| Ferromex | 3 |
GRW
| Gary Railway | 49 |
GTW
| Grand Trunk Western | 6 |
HS
| H and S Railroad Company | 4 |
IC
| Illinois Central | 2 |
IHB
| Indiana Harbor Belt | 24 |
KCS
| Kansas City Southern | 8 |
LW
| Louisville and Wadley Railway Company | 9 |
MBKX
| Mitsui Rail Capital | 2 |
MKT
| Missouri-Kansas-Texas | 6 |
MP
| Missouri Pacific | 30 |
MULX
| MULX | 2 |
NKLX
| NKLX | 1 |
NOKL
| Northwestern Oklahoma | 19 |
NS
| Norfolk Southern | 38 |
NSAX
| National Steel Corporation | 1 |
NW
| Norfolk & Western | 11 |
NYC
| New York Central | 24 |
RJCW
| R.J. Corman Railroad Company/ Western Ohio Line | 9 |
RVPR
| Riverport R.R., L.L.C. | 1 |
SFLC
| BNSF Railway | 2 |
SMW
| St Marys Railway West LLC | 7 |
SOU
| Southern | 4 |
SP
| Southern Pacific | 1 |
TFM
| Kansas City Southern De Mexico | 8 |
TILX
| Trinity Industries Leasing Company | 4 |
TR
| Tomahawk Railway L.P. | 6 |
UP
| Union Pacific Railroad Company | 83 |
WCTR
| WCTU Company White City Terminal Railway | 1 |
WE
| Wheeling & Lake Erie | 1 |
WFRX
| WELLS FARGO RAIL CORPORATION | 4 |
WRWK
| Providence & Worchester Railroad | 6 |