AMTK
| Amtrak | 4 |
ARMN
| Union Pacific Railroad Company | 132 |
BNFE
| Burlington Northern Fruit Express | 4 |
BNSF
| BNSF Railway | 3 |
CKIX
| C.K. Industries | 2 |
CMHX
| CarMath Incorporated | 1 |
CR
| Conrail | 1 |
CRYX
| Cryo-Trans Incorporated | 22 |
CSX
| CSX Railroad | 7 |
DOT
| DOT | 1 |
FGEX
| Fruit Growers Express | 2 |
JRSX
| J.R. Simplot Company | 1 |
MDT
| Merchants Despatch Transportation | 1 |
NRDX
| Rail Logistics, LC | 1 |
PRR
| Pennsylvania Railroad | 2 |
REX
| Railway Express Agency, Inc. | 3 |
TILX
| Trinity Industries Leasing Company | 4 |
TPIX
| Tropicana Transportation Corp | 79 |
URTX
| Union Refrigerator Transit Co. | 1 |