CHUX
| US Ecology Idaho, Inc. | 2 |
CR
| Conrail | 14 |
CTWX
| CONSHOHOCKEN RAIL, LLC | 3 |
NKCR
| Nebraska, Kansas & Colorado RailNet, Inc | 3 |
NP
| Northern Pacific | 1 |
NS
| Norfolk Southern | 1 |
NW
| Norfolk & Western | 1 |
RGCX
| Rio Grande Chemical LTD | 3 |
SMIX
| Structural Metals Incorporated | 1 |
SOU
| Southern | 1 |
SRNJ
| Southern Railroad Company of New Jersey | 1 |