AOK
| Arkansas-Oklahoma Railroad | 51 |
ATSF
| Atchison Topeka & Santa Fe | 2 |
ATW
| Atlantic and Western | 19 |
BHRR
| Birmingham Terminal Railway | 1 |
BLE
| Bessemer & Lake Erie | 2 |
BN
| Burlington Northern | 40 |
BNSF
| BNSF Railway | 118 |
BS
| Birmingham Southern RR | 9 |
CAGY
| Columbus & Greenville Railway | 8 |
CHTT
| Chicago Heights Terminal Transfer | 8 |
CIGX
| THE CIT GROUP/CAPITAL FINANCE, INC. | 1 |
CN
| Canadian National Railways | 72 |
CNA
| Canadian National Railways | 2 |
CNW
| Chicago & Northwestern | 15 |
COER
| Crab Orchard & Egyptian | 6 |
CP
| Canadian Pacific Railway | 73 |
CR
| Conrail | 2715 |
CRLE
| Coe Rail Incorporated | 1 |
CSS
| Chicago South Shore And South Bend | 154 |
CSX
| CSX Railroad | 829 |
CTRN
| Union Pacific Railroad Company | 22 |
CWRO
| Cleveland Works Rail Operations | 1 |
DLRX
| General Electric Rail Services | 33 |
DTI
| Detroit Toledo & Ironton | 1 |
EJE
| Elgin Joliet and Eastern | 740 |
FURX
| First Union Rail | 1 |
FXE
| Ferromex | 4 |
GRW
| Gary Railway | 530 |
GTW
| Grand Trunk Western | 167 |
GVSR
| Galveston Railroad L.P. | 5 |
HS
| H and S Railroad Company | 1 |
HZGX
| Herzog Contracting Corporation | 1 |
IANR
| Iowa Northern Ry | 1 |
IC
| Illinois Central | 21 |
ICE
| Iowa Chicago and Eastern | 108 |
ICG
| Illinois Central Gulf | 7 |
IHB
| Indiana Harbor Belt | 221 |
IMRL
| I&M Rail Link | 4 |
INLX
| Incoal Company | 1072 |
KCS
| Kansas City Southern | 11 |
LMIC
| Lake Michigan & Indiana Railroad | 2 |
LRS
| Laurinburg and Southern | 14 |
LRWN
| Little Rock & Western | 6 |
LW
| Louisville and Wadley Railway Company | 31 |
MBKX
| Mitsui Rail Capital | 8 |
MKT
| Missouri-Kansas-Texas | 3 |
MNNR
| Minnesota Commercial | 3 |
MP
| Missouri Pacific | 26 |
NDYX
| First Union Rail | 1 |
NOKL
| Northwestern Oklahoma | 67 |
NS
| Norfolk Southern | 7638 |
NSAX
| National Steel Corporation | 140 |
NW
| Norfolk & Western | 385 |
NYC
| New York Central | 272 |
PRSX
| Progress Rail Service | 2 |
SCIH
| South Chicago & Indiana Harbor Railway C | 61 |
SFS
| Santa Fe Southern | 1 |
SIMX
| Sturgis Iron & Metal | 2 |
SMW
| St Marys Railway West LLC | 18 |
SOO
| Soo Line | 5 |
SOU
| Southern | 278 |
SP
| Southern Pacific | 4 |
SPSX
| Progress Rail Services Corp | 2 |
SSAM
| Sault Ste. Marie Bridge Company (Canadia | 8 |
TFM
| Kansas City Southern De Mexico | 11 |
TR
| Tomahawk Railway L.P. | 180 |
UP
| Union Pacific Railroad Company | 220 |
WCTR
| WCTU Company White City Terminal Railway | 3 |
WE
| Wheeling & Lake Erie | 83 |
WRWK
| Providence & Worchester Railroad | 5 |