APTX
| Air Products and Chemicals Incorporated | 9 |
CMRR
| Catskill Mountain Scenic | 1 |
CR
| Conrail | 1 |
CSX
| CSX Railroad | 4 |
DODX
| Department Of Defense | 5 |
EBGR
| Eastern Berks Gateway Railroad | 5 |
FEC
| Florida East Coast | 1 |
ITTX
| TTX Company | 4 |
JESX
| James E Strates Shows | 8 |
KRL
| Kasgro Rail Lines | 1 |
LI
| Long Island Rail Road Company | 1 |
MAMX
| Mammoet USA, Inc | 1 |
MCVX
| Massuchusetts Call/Volunteer Firefighters Assoc. | 2 |
PRR
| Pennsylvania Railroad | 5 |
PTTX
| TTX Company | 1 |
QTTX
| TTX Company | 1 |
QUAX
| Redstreak, LLC | 1 |
SBIX
| SBIX | 1 |
SPSX
| Progress Rail Services Corp | 1 |
TTDX
| TTX Company - DOD Service Flats | 1 |
TTX
| TTX Company | 8 |
WGRR
| WGRR | 1 |
WM
| Western Maryland | 1 |