ALT
| AIRLAKE TERMINAL RAILWAY COMPANY | 5 |
CSX
| CSX Railroad | 1 |
DODX
| Department Of Defense | 3 |
DSEX
| East Carbon Development Company | 2 |
GPSX
| Georgia-Pacific Corporation Eastern Wood Products Mfg.Divisi | 1 |
KRL
| Kasgro Rail Lines | 3 |
MART
| MART | 1 |
QTTX
| TTX Company | 2 |
SPSX
| Progress Rail Services Corp | 1 |
WPYR
| White Pass & Yukon Route | 2 |