ABOX
| TTX Company | 1 |
ADN
| Ashley Drew & Northern | 3 |
AGR
| Alabama and Gulf Coast | 1 |
AHW
| Fox Valley and Western Limited | 1 |
ALM
| Arkansas Louisiana and Mississippi Railr | 3 |
AMCX
| BP Amoco Chemical Company Chemical Division | 1 |
AOK
| Arkansas-Oklahoma Railroad | 1 |
ARR
| Alaska Railroad | 1 |
ATSF
| Atchison Topeka & Santa Fe | 6 |
ATW
| Atlantic and Western | 3 |
AWP
| Atlanta & West Point | 1 |
BAR
| Bangor & Aroostook | 6 |
BCOL
| Canadian National Railways | 1 |
BLE
| Bessemer & Lake Erie | 1 |
BM
| Boston & Maine | 6 |
BMS
| Berlin Mills | 1 |
BN
| Burlington Northern | 5 |
CEFX
| CIT Group/Capital Finance, Inc | 1 |
CN
| Canadian National Railways | 1 |
CNA
| Canadian National Railways | 1 |
CSX
| CSX Railroad | 1 |
DH
| Delaware & Hudson | 1 |
DRGW
| Denver & Rio Grande Western | 1 |
GN
| Great Northern | 1 |
GTW
| Grand Trunk Western | 2 |
HLMX
| Helm Financial Corporation | 1 |
KCS
| Kansas City Southern | 1 |
LRS
| Laurinburg and Southern | 1 |
NP
| Northern Pacific | 1 |
NS
| Norfolk Southern | 3 |
NYC
| New York Central | 1 |
PC
| Penn Central | 1 |
ROCK
| Rock Island | 1 |
SOO
| Soo Line | 1 |
SP
| Southern Pacific | 1 |
TR
| Tomahawk Railway L.P. | 1 |