ARMN
| Union Pacific Railroad Company | 37 |
ART
| American Refrigerator Transit Company | 2 |
CRYX
| Cryo-Trans Incorporated | 9 |
GARX
| General American Marks Company | 1 |
GPEX
| General American Pfaudler | 1 |
MP
| Missouri Pacific | 1 |
SLRX
| SLRX | 1 |
TILX
| Trinity Industries Leasing Company | 1 |
URTX
| Union Refrigerator Transit Co. | 8 |