AMTK
| Amtrak | 44 |
AOK
| Arkansas-Oklahoma Railroad | 297 |
AT
| Auto Train | 1 |
ATSF
| Atchison Topeka & Santa Fe | 101 |
ATW
| Atlantic and Western | 56 |
BNSF
| BNSF Railway | 1185 |
BTTX
| TTX Company - Autoracks | 288 |
CMO
| Chicago St Paul Minneapolis & Omaha | 21 |
CN
| Canadian National Railways | 489 |
CNA
| Canadian National Railways | 731 |
COER
| Crab Orchard & Egyptian | 26 |
CP
| Canadian Pacific Railway | 542 |
CPAA
| Canadian Pacific Railway | 149 |
CPR
| Canadian Pacific Railway | 1 |
CR
| Conrail | 1 |
CRLE
| Coe Rail Incorporated | 1 |
CSX
| CSX Railroad | 59 |
CTTX
| TTX Company - Autoracks | 1183 |
DODX
| Department Of Defense | 4 |
DTTX
| TTX Company - Double Stack Cars | 2 |
EETX
| EETX | 1 |
EL
| Erie Lackawanna | 1 |
ETTX
| TTX Company - Autoracks | 10285 |
FEC
| Florida East Coast | 21 |
FSRR
| FerroSur | 3 |
FXE
| Ferromex | 19 |
GTW
| Grand Trunk Western | 260 |
GVSR
| Galveston Railroad L.P. | 3 |
HCRC
| Hillsdale County Ry. Co., Inc. | 1 |
IHXX
| IHXX | 1 |
ITTX
| TTX Company | 6 |
KCS
| Kansas City Southern | 170 |
KCSM
| Kansas City Southern De Mexico | 12 |
KNA
| KNA | 1 |
NAFX
| General Electric Rail Services | 2 |
NKCR
| Nebraska, Kansas & Colorado RailNet, Inc | 378 |
NOKL
| Northwestern Oklahoma | 13 |
NS
| Norfolk Southern | 579 |
ONT
| Ontario Northland Railway | 1 |
PW
| Providence and Worcester | 307 |
QNSL
| Quebec, North Shore and Labrador | 1 |
RBBX
| Ringling Bros. and Barnum and Bailey | 14 |
RCTH
| RCTH | 1 |
RP
| Railpool | 1 |
SBD
| Seaboard System | 1 |
SFLC
| BNSF Railway | 123 |
SLFC
| SLFC | 3 |
SLSF
| Saint Louis-San Francisco | 1 |
SOO
| Soo Line | 306 |
SOU
| Southern | 22 |
SOXX
| SMBC RAIL SERVICES LLC | 1 |
SP
| Southern Pacific | 485 |
SSW
| St Louis Southwestern (Cotton Belt) | 225 |
T
| T | 1 |
TGGX
| TGGX | 2 |
TGX
| TGX | 2 |
THRX
| Transportation Corporation of America | 1 |
TOAX
| TTX Company - Autoracks | 15 |
TOCX
| TTX Company - Autoracks | 73 |
TOEX
| TOEX | 4 |
TSFX
| TSFX | 1 |
TTBX
| TTX Company | 4 |
TTCX
| TTX Company | 1 |
TTDX
| TTX Company - DOD Service Flats | 1 |
TTEX
| TTX Company - Articulated Flat Cars (TOFC/COFC) | 1 |
TTFX
| TTX Company | 2 |
TTG
| TTG | 3 |
TTGX
| TTX Company-Autoracks | 30071 |
TTGZ
| TTGZ | 1 |
TTNX
| TTX Company | 1 |
TTOX
| TTX Company | 1 |
TTQX
| TTX Company-Autoracks | 214 |
TTRX
| TTX Company-Spine Cars | 1 |
TTUX
| TTX Company | 164 |
TTX
| TTX Company | 2 |
TTXX
| TTX Company | 1 |
TTYX
| TTX Company | 1 |
TTZX
| TTX Company-Centerbeam Flats | 1 |
TUGX
| Texas Utilities Mining Company | 1 |
UCRY
| Utah Central | 125 |
UP
| Union Pacific Railroad Company | 94 |
WC
| Wisconsin Central | 5 |
WMTA
| WMTA | 1 |
WRW
| WRW | 2 |
WRWK
| Providence & Worchester Railroad | 223 |