AOK
| Arkansas-Oklahoma Railroad | 1 |
DODX
| Department Of Defense | 7 |
DSEX
| East Carbon Development Company | 2 |
ITTX
| TTX Company | 2 |
JESX
| James E Strates Shows | 1 |
KRL
| Kasgro Rail Lines | 2 |
LBR
| Lowville and Beaver River Railroad Compa | 1 |
LMIC
| Lake Michigan & Indiana Railroad | 1 |
MCVX
| Massuchusetts Call/Volunteer Firefighters Assoc. | 1 |
PTTX
| TTX Company | 1 |
SOU
| Southern | 1 |
SPSX
| Progress Rail Services Corp | 2 |
TPDX
| TPDX | 4 |
TTMX
| TTX Company | 2 |
USWX
| USA Waste Services Incorporated | 1 |