ABS
| Alabama Southern Railroad | 9 |
AC
| Algoma Central | 10 |
AOK
| Arkansas-Oklahoma Railroad | 8 |
ATW
| Atlantic and Western | 38 |
BLHX
| SMBC RAIL SERVICES LLC | 2 |
BN
| Burlington Northern | 30 |
BNSF
| BNSF Railway | 49 |
CN
| Canadian National Railways | 29 |
CNIS
| Canadian National Railways | 13 |
CP
| Canadian Pacific Railway | 2 |
CPI
| Canadian Pacific Railway | 3 |
CSX
| CSX Railroad | 26 |
EAMX
| Everest Railcar Services, Inc | 9 |
GMRC
| Green Mountain RR | 1 |
HKRX
| HKRX | 2 |
ICCX
| International Catalyst Corp. | 5 |
IFRX
| Infinity Rail LLC | 8 |
IHB
| Indiana Harbor Belt | 19 |
JOBX
| Tealinc Limited | 4 |
JTSX
| Joseph Transportation Incorporated | 28 |
LN
| Louisville & Nashville | 24 |
LRIX
| Lake Superior Eastern Rail Industries | 6 |
MMA
| Montreal, Maine & Atlantic | 18 |
NAFX
| General Electric Rail Services | 16 |
NS
| Norfolk Southern | 40 |
SBD
| Seaboard System | 19 |
SFS
| Santa Fe Southern | 1 |
SMW
| St Marys Railway West LLC | 1 |
SOU
| Southern | 1 |
SPEX
| SOUTHERN PARTS & EQUIPMENT INC. | 1 |
SSW
| St Louis Southwestern (Cotton Belt) | 166 |
TOE
| Texas Oklahoma and Eastern RR Company | 24 |
TRLX
| Texas Railcar Leasing Company | 23 |
UP
| Union Pacific Railroad Company | 23 |
WCRC
| Washington Central | 2 |
WCTR
| WCTU Company White City Terminal Railway | 6 |
YARR
| Youngstown and Austintown Railroad | 4 |