CR
| Conrail | 2 |
DEEX
| Detroit Edison Company | 1 |
DME
| Dakota, Minnesota and Eastern | 3 |
GEAX
| General Electric Rail Services | 1 |
ICE
| Iowa Chicago and Eastern | 2 |
JETX
| Jefferson Transportation LLC | 1 |
MNNR
| Minnesota Commercial | 1 |
NS
| Norfolk Southern | 5 |
NW
| Norfolk & Western | 1 |
NYC
| New York Central | 1 |
SLGG
| Progress Rail Services Corporation | 1 |
SOU
| Southern | 1 |
TZPR
| Tazewell & Peoria Railroad | 1 |