ACL
| Atlantic Coast Line | 2 |
CSX
| CSX Railroad | 7 |
DODX
| Department Of Defense | 24 |
FEC
| Florida East Coast | 4 |
FTTX
| TTX Company | 1 |
GECX
| General Electric Company | 1 |
GEGX
| GE Gas Turbine | 1 |
HKRX
| HKRX | 1 |
HTTX
| TTX Company | 11 |
JTSX
| Joseph Transportation Incorporated | 1 |
KRL
| Kasgro Rail Lines | 5 |
NS
| Norfolk Southern | 3 |
NYC
| New York Central | 1 |
PTTX
| TTX Company | 1 |
QTTX
| TTX Company | 4 |
SAL
| Seaboard Air Line | 1 |
SBD
| Seaboard System | 2 |
SCL
| Seaboard Coast Line | 4 |
SOU
| Southern | 4 |
SPSX
| Progress Rail Services Corp | 8 |
SRMX
| Southeastern Railway | 1 |
TEXX
| TEXX | 1 |