BNSF
| BNSF Railway | 4 |
EPIX
| EPIC | 1 |
FEC
| Florida East Coast | 8 |
GACX
| General American Marks Company | 1 |
GCCX
| General American Marks Company | 1 |
GIMX
| General American Marks Company | 5 |
HESX
| Heritage Environmental Services | 1 |
MHFX
| MHF Logistical Solutions Incorporated | 1 |
SO
| South Orient | 1 |
TTAX
| TTX Company - Spine Cars | 47 |
TTRX
| TTX Company-Spine Cars | 29 |