ABOX
| TTX Company | 1 |
AOK
| Arkansas-Oklahoma Railroad | 1 |
ATSF
| Atchison Topeka & Santa Fe | 1 |
BAEX
| Andersons | 5 |
BN
| Burlington Northern | 1 |
BNSF
| BNSF Railway | 7 |
CN
| Canadian National Railways | 2 |
CNA
| Canadian National Railways | 2 |
CNW
| Chicago & Northwestern | 4 |
CP
| Canadian Pacific Railway | 3 |
CSX
| CSX Railroad | 3 |
DRGW
| Denver & Rio Grande Western | 4 |
DWC
| Canadian National Railways | 1 |
EEC
| East Erie Commercial Railroad | 1 |
FBOX
| TTX Company | 6 |
GARX
| General American Marks Company | 1 |
GTW
| Grand Trunk Western | 3 |
HATX
| Helm Financial Corporation | 2 |
HLMX
| Helm Financial Corporation | 2 |
HPJX
| Helm-Pacific Leasing | 7 |
IBT
| International Bridge and Terminal Company | 2 |
IC
| Illinois Central | 1 |
ICG
| Illinois Central Gulf | 1 |
KCS
| Kansas City Southern | 2 |
MP
| Missouri Pacific | 2 |
MSIX
| Morton International Incorporated | 1 |
MWCX
| Midwest Railcar Corporation | 1 |
NN
| Northern Nevada Railroad Corporation | 2 |
NP
| Northern Pacific | 1 |
NS
| Norfolk Southern | 1 |
NYC
| New York Central | 1 |
PGR
| Progressive Rail, Inc | 1 |
PPCX
| AAPRCO Register Private Cars | 1 |
PRG
| PRG | 1 |
RBOX
| Railbox Company | 7 |
SLGW
| Salt Lake Garfield and Western Railway Company | 1 |
SOU
| Southern | 3 |
SP
| Southern Pacific | 8 |
SRY
| Southern Railway of British Columbia Lim | 6 |
SSW
| St Louis Southwestern (Cotton Belt) | 4 |
TBOX
| TTX Company | 9 |
UP
| Union Pacific Railroad Company | 9 |
WC
| Wisconsin Central | 2 |
WP
| Western Pacific | 4 |
YKR
| York Rail | 1 |