ACL
| Atlantic Coast Line | 1 |
ATSF
| Atchison Topeka & Santa Fe | 4 |
BO
| Baltimore & Ohio | 2 |
CBQ
| Chicago Burlington & Quincy | 3 |
CC
| Chicago Central & Pacific | 1 |
CEFX
| CIT Group/Capital Finance, Inc | 1 |
CEMX
| Cemex Mexico SA de CV | 2 |
CIC
| Cedar Rapids & Iowa City | 1 |
CN
| Canadian National Railways | 2 |
CNW
| Chicago & Northwestern | 3 |
CP
| Canadian Pacific Railway | 2 |
CRIP
| Chicago Rock Island & Pacific | 3 |
CSKX
| Central States Grain & Trading Co. | 1 |
DM
| Detroit & Mackinac | 1 |
DME
| Dakota, Minnesota and Eastern | 1 |
DUPX
| Du Pont De Nemours and Company Incorporated | 1 |
DYLX
| Transportation Equipment Incorporated | 1 |
FEC
| Florida East Coast | 1 |
GACX
| General American Marks Company | 4 |
GN
| Great Northern | 1 |
GNWR
| Genesee and Wyoming Railroad Company | 2 |
HWCX
| Halliburton Company | 1 |
ILDX
| General Electric Company - Lighting Business Group | 1 |
IMRL
| I&M Rail Link | 1 |
KYLE
| Kyle Railroad | 1 |
MCPX
| Solutia Incorporated | 1 |
MILW
| Milwaukee Road | 11 |
MKT
| Missouri-Kansas-Texas | 1 |
MNS
| Minneapolis Northfield & Southern | 1 |
MP
| Missouri Pacific | 1 |
MSTL
| Minneapolis & St Louis | 5 |
NAHX
| General Electric Rail Services | 8 |
NP
| Northern Pacific | 1 |
NW
| Norfolk & Western | 1 |
PC
| Penn Central | 1 |
PRR
| Pennsylvania Railroad | 1 |
ROCK
| Rock Island | 1 |
SAL
| Seaboard Air Line | 2 |
SAN
| Sandersville | 1 |
SDWX
| Cemex Inc | 1 |
SHPX
| American Railcar Leasing, LLC | 10 |
SOO
| Soo Line | 2 |
SOU
| Southern | 2 |
SSW
| St Louis Southwestern (Cotton Belt) | 2 |
TGOX
| First Union Rail | 1 |
TLDX
| General Electric Rail Services | 7 |
UP
| Union Pacific Railroad Company | 2 |
UTCX
| Union Tank Car Company | 1 |
WITX
| CCC Transport Company | 1 |