An AAR (Association of American Railroads) reporting mark is two to four letters
that uniquely identifies the owner of a piece of railroad rolling stock. The
reporting mark is generally derived from the assigned company's initials. All
cars in interchange service must be labeled with a reporting mark.
| AA | Ann Arbor Railroad |
| AALX | Advanced Aromatics LP |
| AAMX | Arrendadora de Carros de Ferrocarril SA |
| AAR | Association of American Railroads |
| AATX | Ampacet Corporation |
| AB | Akron Barberton Cluster Railway Company |
| ABB | Akron and Barberton Belt Railroad Company |
| ABBX | Abbott Labs |
| ABIX | Anheuser-Busch Incorporated |
| ABL | Alameda Belt Line |
| ABOX | TTX Company |
| ABR | Athens Lines LLC |
| ABRX | AB Rail Investments Incorporated |
| ABWX | Asea Brown Boveri Incorporated |
| AC | Canadian National Railway (Algoma Central Railway) |
| ACAX | Honeywell International Incorporated |
| ACBL | American Commercial Barge Lines |
| ACCX | Consolidation Coal Company |
| ACDX | Honeywell International Incorporated |
| ACEX | Ace Cogeneration Company |
| ACFX | General Electric Rail Services Corporation |
| ACGX | Suburban Propane LP |
| ACIS | Canadian National Railway (Algoma Central Railway) |
| ACIX | Great Lakes Chemical Corporation |
| ACJR | Ashtabula Carson Jefferson Railroad Company |
| ACJU | American Coastal Lines Joint Venture Incorporated |
| ACL | CSX Transportation Incorporated |
| ACLU | Atlantic Container Line Limited |
| ACLX | American Car Line Company |
| ACMX | Voith Hydro |
| ACNU | AKZO Chemie B V |
| ACOU | Associated Octel Company Limited |
| ACPX | BP Products North America Incorporated |
| ACPZ | American Concrete Products Company |
| ACRX | American Chrome and Chemicals Incorporated |
| ACSU | Atlantic Cargo Services AB |
| ACSX | Honeywell International Incorporated |
| ACSZ | American Carrier Equipment |
| ACTU | Associated Container Transport (Australia) Limited |
| ACTX | Honeywell International Incorporated |
| ACUU | Acugreen Limited |
| ACWR | Aberdeen Carolina and Western Railway |
| ACWZ | Union Pacific Railroad Company |
| ACXU | Atlantic Cargo Services AB |
| ACXX | Anderson Columbia Company Incorporated |
| ACY | Norfolk Southern Railway Company |
| ACZX | A C Railroad Service Company |
| ADBF | Adrian and Blissfield Rail Road Company |
| ADCU | Flexi-Van Leasing Incorporated |
| ADKU | AGA A/S |
| ADMX | ADM Transportation Company |
| ADN | Arkansas Louisiana and Mississippi Railroad Company |
| ADRX | Addeleston Recycling Corporation |
| ADSX | Andrew Merrilees Limited |
| AEC | Atlantic and East Carolina Railway Company |
| AECX | Associated Electric Cooperative Incorporated |
| AEFR | Aurora Elgin and Fox River Electric |
| AEIX | Alan Eslisk |
| AEIZ | Farrell Lines Incorporated |
| AEPU | American Lines Incorporated |
| AEPX | American Electric Power Service |
| AERC | Albany and Eastern Railroad Company |
| AESX | General Electric Rail Services Corporation |
| AEVX | AKZO Coatings Incorporated |
| AEX | The Andersons |
| AF | Alabama and Florida Railway Company |
| AFCU | Afram Lines Incorporated |
| AFCX | Atel Capital Equipment Fund |
| AFCZ | Afram Lines Limited |
| AFIU | ABS Industrial Verification Incorporated |
| AFIZ | Agmark Foods |
| AFLR | Alabama and Florida Railroad Incorporated |
| AFPX | Honeywell International Incorporated |
| AFRX | AF Railway Industries Incorporated |
| AFSX | Astoria LLC |
| AG | Galveston Railroad LP |
| AGCR | Alamo Gulf Coast Railroad Company |
| AGCX | Procor Limited |
| AGEX | Nova Chemicals Limited |
| AGHX | Agrium US Incorporated |
| AGIX | AGRI Industries |
| AGLF | Knoxville and Holston River Railroad Company |
| AGLX | Andrews Petroleum Incorporated |
| AGMX | Terra Nitrogen Limited Partnership |
| AGPX | Ag Processing Incorporated |
| AGR | Alabama and Gulf Coast Railway LLC |
| AGRD | A and G Railroad LLC |
| AGRX | Agrifos LLC |
| AGS | Alabama Great Southern Railroad Company |
| AGYX | Centrex Construction Products Inc (American Gypsum Company) |
| AHCX | Arcadian Corporation |
| AHMX | Altos Homos de Mexico SA de CV |
| AHW | Fox Valley and Western Limited |
| AHWZ | Fox Valley and Western Limited |
| AIDU | Albermarle Corporation |
| AIEU | Aviation Import Export Incorporated |
| AIIZ | III Transportation |
| AINX | TTX Company - Acorn Division |
| AIPX | Atlas Iron Processors Incorporated |
| AITU | Western Intermodal |
| AJCU | Australia Japan Container Line |
| AJPX | IMC Chemicals |
| AKDN | Acadiana Railway Company |
| AKFX | AKF Corporation |
| AKLU | K Line |
| AKMD | Arkansas Midland Railroad Company |
| AKMX | Helm Financial Corporation |
| AKZX | AKZO Nobel Chemicals Incorporated |
| AL | Almanor Railroad Company |
| ALAB | Alabama Railroad Company |
| ALAX | Equistar Chemicals LP |
| ALCX | Alcan Smelters and Chemicals Limited |
| ALEX | AGRI Industries |
| ALGX | Amsterdam Leasing |
| ALLX | Alliance Machine Company |
| ALLZ | Alliance Shippers Incorporated |
| ALM | Arkansas Louisiana and Mississippi Railroad Company |
| ALMX | Trinity Rail Management Incorporated |
| ALNX | Alberta Government |
| ALPX | Alberta Government |
| ALQS | Aliquippa and Southern Railroad Company |
| ALRX | A and R Leasing LLP |
| ALS | Alton and Southern Railway Company |
| ALSX | Albis Canada Incorporated |
| ALTU | VTG Vereinigte Tanklage U Transportmittel GMBH |
| ALTX | Southern Illinois Railcar Incorporated |
| ALUX | Alumax of South Carolina Incorporated |
| ALY | Allegheny and Eastern Railroad Incorporated |
| AM | Arkansas and Missouri Railroad Company |
| AMAX | AMAX Coal Company |
| AMBU | Amber Line Incorporated |
| AMBX | American Boiler Works Incorporated |
| AMC | Arkansas Louisiana and Mississippi Railroad Company |
| AMCX | BP Amoco Chemical Company Chemical Division |
| AMCZ | Interbulk Incorporated |
| AMEX | Allied Entreprises |
| AMFU | Amphibious Container Leasing Limited |
| AMGX | AMG Resources Corporation |
| AMHR | Landisville Railroad Incorporated |
| AMIU | American Marine Industries |
| AMIX | Railcar Leasing Specialists Incorporated |
| AMIZ | American Marine Industries |
| AMLX | American Railcar Company |
| AMMU | Hyundai |
| AMMX | Kentucky-Tennessee Clay Company |
| AMNX | American Railcar Leasing Partners |
| AMOX | BP Products North America Incorporated |
| AMOZ | American Oil Company |
| AMPX | General Electric Rail Services Corporation |
| AMRU | Alaska Marine Lines Incorporated |
| AMRX | Consolidated Oil and Transportation Company Incorporated |
| AMRZ | American Chassis Leasing Incorporated |
| AMSX | AllTrans Management Services Corp |
| AMTK | National Railroad Passenger Corporation (AMTRAK) |
| AMTZ | Amtrak (National Railroad Passenger Corporation) |
| AMXU | Americas Marine Express Incorporated |
| AN | AN Railway LLC |
| ANAU | Alliance Navigation Line Incorporated |
| ANAX | General Electric Rail Services Corporation |
| ANCX | Norit Americas Incorporated |
| ANDX | Andesite Rock Company |
| ANIX | Associacion National de la Industria Quimca A.C. |
| ANKX | A and K Railroad Materials Incorporated |
| ANR | Angelina and Neches River Railroad |
| ANSX | Ansco Investment Company |
| ANY | Athabasca Northern Railway Limited (Cando) |
| AOCU | Associated Octel |
| AOCX | Aluminum Company of America |
| AOEX | American Orient Express Railway Company LLC |
| AOIX | Marathon Ashland Petroleum Company |
| AOK | Arkansas-Oklahoma Railroad Incorporated |
| AOR | The Aliquippa and Ohio River Railroad Company |
| AOUX | Alberta and Orient Glycol Company Limited |
| APA | Apache Railway Company |
| APAX | Cimentos Apasco SA de CV |
| APCU | American President Lines Limited |
| APCX | Allied Lime Company |
| APD | Albany Port District |
| APEX | Apex Tank Car Line |
| APHX | Air Products Polymers LP |
| APIX | The Commonwealth Plan Incorporated |
| APLU | American President Lines Limited |
| APLX | APL Land Transport Services Incorporated |
| APLZ | American President Lines Limited |
| APMU | Maersk Lines |
| APMX | Air Products Manufacturing Company |
| APMZ | Maersk Equipment Service Company |
| APNC | Appanoose County Community Railroad |
| APOX | Alabama Power Company |
| APRX | Air Products and Chemicals Incorporated |
| APSX | Arizona Public Service Company |
| APTX | Air Products and Chemicals Incorporated |
| APWX | Appalachian Power Company |
| APXX | Alberta Prairie Rail Excursions |
| AQCX | Aqua-Chem Incorporated Celaver Brooks Division |
| AR | Aberdeen and Rockfish Railroad Company |
| ARA | Arcade and Attica Railroad Corporation |
| ARC | Alexander Railroad Company |
| ARCX | Arizona Rail Car Incorporated |
| ARDP | Union Pacific Railroad Company |
| ARDU | CATU Containers SA |
| ARE | A and R Line Incorporated |
| AREX | Aeropres Corporation |
| ARGX | Associated Railcar Incorporated |
| ARHU | CATU Containers SA |
| ARHX | Arch Mineral Corporation |
| ARIX | General Electric Rail Services Corporation |
| ARJX | Arch Chemicals |
| ARMH | Union Pacific Railroad Company |
| ARMN | Union Pacific Railroad Company |
| ARMX | American Rail and Marine Corporation |
| ARMZ | Armasal Line |
| ARN | Alberta RailNet Incorporated |
| AROX | General American Transportation Corporation |
| ARPX | BP Products North America Incorporated |
| ARR | Alaska Railroad Corporation |
| ARRX | Anthracite Railroads Historical Society Incorporated |
| ARSX | Sunoco Incorporated (R and M) |
| ART | American Refrigerator Transit Company |
| ARTU | CATU Containers SA |
| ARW | Arkansas Western Railway Company |
| ARWX | Alabama River Woodlands Incorporated |
| ARZC | Arizona and California Railroad Company |
| ASAB | Bay Line Railroad LLC |
| ASCX | Armco Steel Company LP |
| ASGX | Ash Grove Cement Company |
| ASHU | Maritainer France SA |
| ASHX | American Soda LLP |
| ASR | Allegheny Southern Railroad Incorporated |
| ASRX | Domino Sugar Company |
| ASRY | Ashland Railway Incorporated |
| ASRZ | Agri/Share Cooperative |
| ASTX | Asarco Incorporated |
| ATAX | Arizona Transit Assembly |
| ATCX | Southern Illinois Railcar Incorporated |
| ATEX | Asplundh Tree Expert Company Railroad Division |
| ATGU | Burlington Northern and Santa Fe Railway Company |
| ATGX | ATEL Leasing Corporation |
| ATIU | Societe Auxillaire De Transport Et D'Industries |
| ATIX | Alstom Transportation Incorporated |
| ATLT | AT and L Railroad Company |
| ATLU | American Marine Industries |
| ATLX | Atlas Machine and Iron Works Incorporated |
| ATLZ | American Marine Industries |
| ATMX | US Department of Energy Albuquerque Operations Office |
| ATOU | Atochem |
| ATSF | Burlington Northern and Santa Fe Railway Company |
| ATTX | TTX Company |
| ATW | Atlantic and Western Railway |
| AUBX | US Plastic Lumber Limited |
| AUG | Augusta Railroad Corporation |
| AVL | Aroostook Valley Railroad Company |
| AVLU | Allied Van Lines |
| AVR | Allegheny Valley Railroad Company |
| AWCX | Airco Welding Products |
| AWDX | Atlantic of New York Incorporated |
| AWIX | Albright and Wilson Americas Incorporated |
| AWP | CSX Transportation Incorporated |
| AWW | Algers Winslow and Western Railway |
| AWXX | East Carbon Development Company |
| AWZZ | McCloud Railway Company |
| AXCU | Ace Transportation Company |
| AXXZ | Agricultural Express of America |
| AZCR | Arizona Central Railroad Incorporated |
| AZCX | Azcon Corporation |
| AZER | Arizona Eastern Railway Company |
| AZEX | Arizona Electric Power Cooperative Incorporated |
| AZMX | Arizona Railway Museum |
| AZXX | Arizona Chemical Company |
| BADX | Baden Investment Company |
| BAEX | The Andersons |
| BALX | Bayer Corporation |
| BANU | Bank Winter and Co Aktiengesellschaft |
| BAPX | Bay Area Piggyback Incorporated |
| BAR | Bangor and Aroostook Railroad Company now MMA |
| BARU | Barons Leasing Corporation |
| BARZ | Bangor and Aroostook Railroad Company now MMA |
| BASX | Bay State Milling Company |
| BAWX | Babcock and Wilcox Company |
| BAYL | Bay Line Railroad LLC |
| BAYU | Mobay Chemical Corporation |
| BAYX | Bayer Corporation |
| BB | Buckingham Branch Railroad Company |
| BBCX | ABB Power Generation Inc |
| BBRX | Bombardier Incorporated Transportation Equipment Group |
| BBSZ | Barbar Steamship Lines Inc |
| BBTU | Bress Bulk International Bulk Transport and Consulting |
| BCAX | Blue Circle Incorporated |
| BCCX | Border Chemical Company Limited |
| BCDX | Borden Chemical Incorporated |
| BCGX | Bay Cities Gas Corporation |
| BCH | Southern Railway of British Columbia Limited |
| BCIT | BC Rail Limited |
| BCIU | Bay Cities Leasing Company |
| BCIX | Blue Circle Incorporated |
| BCJU | Bay Cities Leasing Company |
| BCLR | Bay Colony Railroad Corporation |
| BCLU | Bibby Bros Company |
| BCMX | Bullet Concrete Materials Company |
| BCNE | Canadian National Railway |
| BCOL | BC Rail Limited |
| BCRX | General Electric Rail Services Corporation |
| BCRY | Barrie-Collingwood Railway (Cando) |
| BCTZ | Boise Cascade Corporation |
| BCVX | West Coast Express |
| BCWX | Union Tank Car Company |
| BCYU | Bay Cities Leasing Company (Union Pacific) |
| BDCX | Anchor Glass Container |
| BDLX | BDL Company |
| BDMX | Blue Diamond Mining Incorporated |
| BDNX | Baroid Drilling Fluids Incorporated |
| BDRV | Belvidere and Delaware River Railway Company Incorporated |
| BDTL | Ballard Terminal Railroad Company |
| BDW | Bighorn Divide and Wyoming Railroad Incorporated |
| BECX | FMC Corporation |
| BEEM | Beech Mountain Railroad Corporation |
| BENX | Investors Property Service |
| BFCX | Berwick Freight Car Company |
| BFGX | Oxy Vinyls LP |
| BFHU | Bailee Freight Services Limited |
| BFIX | Bethlehem Steel Corporations |
| BFRX | Bakery Trading Company |
| BFSU | Bailee Freight Services Limited |
| BGEX | General American Marks Company |
| BGFX | Barnabas Group Foundation |
| BGKU | Schering AG |
| BGSX | Strata Corporation |
| BH | B and H Rail Corporation |
| BHCU | Bridgehead Container Service |
| BHP | BHP Nevada Railroad Company |
| BHTX | Bernhart Crane and Rigging Company |
| BHWY | Boot Hill and Western Railway Company LLC |
| BIAX | Ocala Recycling Recycling |
| BIDU | Universal Bulk-Handling Limited |
| BIGX | Air Liquide America Corporation |
| BIRR | Bellingham International Railroad LLC |
| BISX | Brandenburg Industrial Service Co |
| BITY | Penn Eastern Rail Lines Incorporated |
| BJGX | BJ Gas Supply Incorporated |
| BJHX | BJ Titan Services Company |
| BJOX | Citicorp Railmark Incorporated |
| BJRY | Burlington Junction Railway |
| BKLU | Bank Line Limited |
| BKRR | Batten Kill Railroad Company Incorporated |
| BKRU | Baker Tanks |
| BKTY | Union Pacific Railroad Company |
| BLCX | The Commonwealth Plan Incorporated |
| BLE | Bessemer and Lake Erie Railroad Company |
| BLKM | Black Mesa and Lake Powell |
| BLKU | Bulkhaul Company Limited |
| BLKZ | Mid-American Intermodal Equipment Corporation |
| BLMR | Blue Mountain Railroad Incorporated |
| BLOL | Bloomer Line |
| BM | Boston and Maine Corporation |
| BMAZ | Transamerica Leasing (Better Asset Management) |
| BMCX | Bluewater Michigan Chapter Incorporated |
| BMDZ | Minnesota Dakota and Western Railway Company |
| BMH | Beaufort and Morehead Railroad Co |
| BMIZ | Burlington Motor Carriers |
| BML | Belfast and Moosehead Lake Railroad |
| BMRG | Blue Mountain and Reading Railroad |
| BMS | St. Lawrence and Atlantic Railroad Company (GWI) |
| BMSX | Bemis Company Incorporated |
| BMZ | Boston and Maine Corp |
| BN | Burlington Northern and Santa Fe Railway Company |
| BNAU | Burlington Northern and Santa Fe Railway Company |
| BNAZ | Burlington Northern and Santa Fe Railway Company |
| BNFE | Burlington Northern and Santa Fe Railway Company |
| BNIU | British and Irish Steam Packet Company |
| BNML | Burlington Northern (Manitoba) Limited |
| BNO | Burlington Northern and Santa Fe Railway Company |
| BNPZ | Pacific Rail Services |
| BNQ | Burlington Northern and Santa Fe Railway Company |
| BNRQ | Burlington Northern and Santa Fe Railway Company |
| BNRZ | Burlington Northern and Santa Fe Railway Company |
| BNSF | Burlington Northern and Santa Fe Railway Company |
| BNXU | Burlington Northern and Santa Fe Railway Company |
| BNZ | Burlington Northern and Santa Fe Railway Company |
| BO | CSX Transportation Incorporated |
| BOBX | Freeman Gas of N.C. Incorporated |
| BOCT | Baltimore and Ohio Chicago Terminal Railroad Company |
| BOCX | BOC Gases |
| BOGU | BSL Transport |
| BONU | Bond International Limited |
| BOP | Border Pacific Railroad Company |
| BORX | US Borax Incorporated |
| BORZ | Ecorail Incorporated |
| BOSU | W. BOS Vloeistof Transport B.V. |
| BOZ | CSX Transportation Incorporated |
| BPAX | US Dept of Energy Bonneville Power Administration |
| BPAZ | Acme Markets Incorporated |
| BPCU | B P Chemicals Belgium |
| BPCX | Basin Electric Power Cooperative |
| BPIX | Nova Chemicals Incorporated |
| BPLU | M1 Engineering Limited |
| BPLX | Nova Chemicals Incorporated |
| BPOX | BP Amoco Chemical Company (BP Oil Division) |
| BPPX | General American Marks Company |
| BPRR | Buffalo and Pittsburgh Railroad Incorporated |
| BR | Bradford Industrial Rail Incorporated |
| BRAN | Brandon Corporation |
| BRAX | CIT Group/Capital Finance Incorporated |
| BRBX | Bombardier Transportation |
| BRC | Belt Railway Company of Chicago |
| BRCX | Bunge North America Incorporated |
| BRCY | Cando Contracting Limited |
| BREX | Big Rivers Electric Corporation |
| BRFD | Branford Steam Railroad |
| BRG | Brownsville and Rio Grande International Railroad |
| BRIX | Union Tank Car Company |
| BRNU | Brun SA |
| BRNZ | Comtrak Incorporated |
| BROU | Swedish Transocean Lines |
| BRRC | Borinstein Railroad Company |
| BRRX | Brooklyn Resource Recovery Incorporated |
| BRW | Black River and Western Corporation |
| BS | Birmingham Southern Railroad Company |
| BSCX | Bethlehem Steel Corporation |
| BSDA | BSDA Railroad |
| BSIX | Bethlehem Steel Corporation |
| BSLU | Blue Star Line Limited |
| BSMX | Bay State Milling Company |
| BSOR | Buffalo Southern Railroad Incorporated |
| BSPX | Otter Tail Power Company |
| BSRX | Branson Scenic Railway Incorporated |
| BSTX | Trinitas Corporation |
| BSVY | Boone and Scenic Valley Railroad |
| BTAX | Air Liquide America Corporation |
| BTC | Birmingham Terminal |
| BTCO | Boston Terminal Company |
| BTCU | Bulkmatic Transport Co |
| BTCZ | Bulkmatic Transport Company |
| BTEX | BTE Equipment LLC |
| BTLZ | Intermodal Services Incorporated |
| BTRX | Rocky Mountain Transportation Services |
| BTTX | TTX Company |
| BUDX | Budd Company (temporary) |
| BUDZ | Bud Antle Incorporated |
| BUGX | Bruggere and Monson |
| BUKX | Louisville Gas and Electric Company |
| BUNZ | Burnside International Trucks Limited |
| BVCX | West Coast Express |
| BVHX | BV Heddrick Gravel and Sand Company |
| BVRY | Brandywine Valley Railroad Company |
| BWCX | GE Plastics |
| BXBX | BXB Corporation |
| BXN | Bauxite and Northern Railway Company |
| BYCX | Battle Ground Yacolt and Chelatchie Prairie Railroad |
| CA | Chesapeake and Albemarle Railroad |
| CABU | Bacardi and Company Limited |
| CABX | Cabot Corporation |
| CACZ | Comacasa Line |
| CADX | CAN DO Incorporated |
| CAFU | Bay Cities Leasing Company |
| CAGX | MHC Incorporated Subsidiary of ConAgra |
| CAGY | Columbus and Greenville Railway Company |
| CAGZ | Columbus and Greenville Railway |
| CALA | Carolina Southern Railroad Company |
| CALX | California Railcar Corporation |
| CANX | CANAC International Incorporated |
| CAOX | Westlake CA and O |
| CAPX | TransAlta Utilities Corporation |
| CARR | Carrollton Railroad |
| CARX | Lamson and Sessions |
| CARZ | Anton Caraton and Son |
| CASO | Canadian Pacific Railway (CASO) |
| CATU | CATU Containers SA |
| CAXU | Container Applications International Incorporated |
| CBC | Chemins de fer Baie des Chaleurs Incorporated |
| CBCX | Colonial Brick Company Incorporated |
| CBGR | Council Bluffs Railway Company/Great Western Railway of Iowa LLC |
| CBHU | China Ocean Shipping Company |
| CBIU | Combi Line-Lash |
| CBIX | Central Bi-Products |
| CBL | Conemaugh and Black Lick Railroad |
| CBLU | Cooper Brothers Containers Limited |
| CBNS | Cape Breton and Central Nova Scotia Railway (RailAmerica) |
| CBPU | CBSL Transportation Services Limited |
| CBQ | Burlington Northern and Santa Fe Railway Company |
| CBQZ | Burlington Northern and Santa Fe Railway Company |
| CBRM | Chillicothe-Brunswick Rail Maintenance Authority |
| CBRW | Columbia Basin Railroad Company |
| CBRX | Charles Barthoid |
| CBRY | Copper Basin Railway Incorporated |
| CBYN | Crosbyton Railway Company Incorporated |
| CC | Chicago Central and Pacific Railroad Company |
| CCAX | FDJ Leasing |
| CCBX | Union Carbide Corporation |
| CCCL | Connecticut Central Railroad Company |
| CCCU | Compass Container Co Incorporated |
| CCCZ | Compass Container Co Incorporated |
| CCDX | Dayton Power and Light Company |
| CCEZ | Chicago Central and Pacific Railroad Company |
| CCFZ | Chi-Can Freight Forwarding |
| CCGX | Cando Contracting Limited |
| CCHX | Columbian Chemicals Canada Limited |
| CCIM | Corpus Christie Terminal |
| CCIZ | Crete Intermodal |
| CCKX | CCKX Incorporated |
| CCKY | Chattooga and Chickamauga Railway Company |
| CCLU | Char Ching Shipping (USA) Limited |
| CCLX | Crystal Car Line Incorporated |
| CCPX | Canadian Chemical Producers Association |
| CCR | Kansas City Southern Railway Company |
| CCRA | Camp Chase Industrial Railroad Corporation |
| CCRR | Claremont Concord Railroad Corporation |
| CCRU | Compagnie Des Containers Reservoir |
| CCRX | Coastal Refining and Marketing Incorporated |
| CCRY | Charles City Railway Lines Incorporated |
| CCRZ | Kansas City Southern Railway Company |
| CCSU | Trans Ocean Limited |
| CCT | Central California Traction Company |
| CCTU | Coordinated Caribbean Transport Incorporated |
| CCTX | Central Power and Light Company |
| CCTZ | Crowley Maritime Corporation |
| CCUO | Chicago-Chemung Railroad Corporation |
| CCWX | Coastal Chem Incorporated |
| CCX | Columbian Chemicals Co (Subsidiary of Phelps Dodge Corporation) |
| CCXU | Char Ching Shipping (USA) Limited |
| CCXX | Costain Coal Incorporated |
| CDAC | Bangor and Aroostook Railroad Company (Canadian American Railroad Company) |
| CDAU | Canadian Tire Corporation Limited |
| CDAZ | Canadian Tire Corporation Limited |
| CDCX | Air Liquide America Corporation |
| CDGX | Chatham Oil Company (Bridgeview Systems LLC) |
| CDHX | Caledonian Rail Lines LLC |
| CDLZ | Cardinal Freight Carriers |
| CDNU | Carotrans International |
| CDTX | California Department of Transportation |
| CDVX | Caddo Valley Railcar Repair Incorporated |
| CEBX | Combustion Engineering Incorporated |
| CEDR | Cedar River Railroad Company |
| CEFX | CIT Group/Capital Finance Incorporated |
| CEI | Union Pacific Railroad Company |
| CEIW | Central Indiana and Western RR Company |
| CELX | Celtran Incorporated Subsidiary of Celanese International Corporation |
| CEMR | Central Manitoba Railway Incorporated (Cando) |
| CEMX | Cemex Mexico SA de CV |
| CENX | Western Aggregates Incorporated |
| CEPX | Trinity Industries Leasing |
| CERA | Central Railroad Company of Indianapolis |
| CERX | ER Carpenter LLP |
| CETU | Custom Environmental Transport Incorporated |
| CEWX | Canadian Enterprise Gas Products |
| CF | Cape Fear Railways Incorporated |
| CFKZ | XTRA Intermodal |
| CFLX | Crestbrook Forest Industries (captive service) |
| CFMX | Cargill Incorporated |
| CFNR | California Northern Railroad Company |
| CFRU | Cardinal Freight Carriers |
| CFSX | C and T Refinery Incorporated |
| CFTX | Canadian Fertilizers Limited |
| CFWR | Caney Fork and Western Railroad |
| CG | Norfolk Southern Railway Company |
| CGAX | Cargill Incorporated C.G.D. Division |
| CGBX | Dow Chemical Canada Incorporated |
| CGCX | Cargill Incorporated C.G.D. Division |
| CGDX | Eastern Propane Gas (Country Gas Distributors Incorporated) |
| CGEX | Cargill Incorporated C.G.D. Division |
| CGFX | Consolidated Gas Company of Florida |
| CGLX | GATX Rail Canada Corporation |
| CGMU | Compagnie Generale Maritime (French Line) |
| CGMX | GATX Rail Canada Corporation |
| CGMZ | Compagnie Generale Maritime (French Line) |
| CGNE | Champagne Railroad Incorporated |
| CGOX | Cargill Incorporated |
| CGR | CG Railway Incorporated |
| CGRX | Consolidated Grain and Barge Company |
| CGSX | Proflame Incorporated |
| CGT | Canada and Gulf Terminal Railway |
| CGTU | Compagnie Generale Maritime (French Line) |
| CGTX | GATX Rail Canada Corporation |
| CGW | Union Pacific Railroad Company |
| CHAU | Combined Transport Group Incorporated |
| CHAX | Chartrand's Tank Car Service Incorporated |
| CHEX | Equistar Chemicals |
| CHFU | Challenge International |
| CHIU | Chimco - Bulgaria |
| CHLX | Chemleco Incorporated |
| CHMX | First Union Rail |
| CHP | Ferrocarriles Nacionales de Mexico |
| CHR | Chestnut Ridge Railway Company |
| CHRC | Chaparral Railroad Company Incorporated |
| CHRR | Chesapeake Railroad Company |
| CHRX | The Chesapeake Division |
| CHSX | Cenex Harvest States Cooperative |
| CHSZ | Intermodal Services Incorporated |
| CHTS | Penn Eastern Rail Lines Incorporated |
| CHTT | Union Pacific Railroad Company |
| CHVX | Chevron Chemical Company |
| CHW | Norfolk Southern Railway Company |
| CI | Cambria and Indiana Railroad Company |
| CIC | Cedar Rapids and Iowa City Railway |
| CIIX | Contico International Incorporated |
| CIND | Central Railroad Company of Indiana |
| CIPX | Ameren Energy Generating Company |
| CIR | City of Rochelle Illinois |
| CIRR | Chattahoochee Industrial Railroad |
| CIRX | Consbec Incorporated |
| CIRY | Central Illinois Railroad Company |
| CISD | Colonel's Island Railroad Company |
| CITU | Citroen |
| CITX | PLM International Incorporated |
| CIW | Illinois Central Railroad Company (CN) |
| CIXX | Calciner Industries Incorporated |
| CJPX | General Electric Rail Services Corporation |
| CKIX | C.K. Industries |
| CKP | Colorado Kansas and Pacific Railway Company |
| CKRY | Kansas and Oklahoma Railroad Incorporated |
| CKSI | Carthage Knightstown and Shirley Railroad |
| CLC | Columbia and Cowlitz Railway Company |
| CLCX | Chatahoochee Locomotive Company |
| CLCZ | Complete Logistics Company |
| CLDZ | Celadon Trucking Services Incorporated |
| CLEX | Cieco Corporation |
| CLGU | Costa Line Cargo Services |
| CLIX | Calumet Lubricants |
| CLMX | Cyprus Sierrita Corporation |
| CLNA | Carolina Coastal Railway Incorporated |
| CLOU | CLOU Container Leasing GmbH |
| CLOX | Clark Refining and Marketing Incorporated |
| CLP | Clarendon and Pittsford Railroad Company |
| CLPX | Boulder Scientific Company |
| CLPZ | Clarendon and Pittsford Railroad Company |
| CLRX | Clayton Rail |
| CLSL | Columbia and Silver Creek Railroad |
| CLSX | Cargill Incorporated - Salt Division |
| CLTU | Chemical Leaman Tank Lines Incorporated |
| CLTX | Cloro de Tehuantepec SA de CV |
| CM | Central Montana Rail Incorporated |
| CMBU | CMB SA |
| CMC | CMC Railroad Incorporated |
| CMCU | Crowley Maritime Corporation |
| CMCX | Sweetman Construction Company |
| CMCZ | Crowley Maritime Corporation |
| CMDX | Cargill Incorporated |
| CMGN | Central Michigan Railway Company |
| CMHX | CarMath Incorporated |
| CMIX | Consolidated Minerals Incorporated |
| CMLU | Containers Marine Lines (Division of American Export) |
| CMLX | Craggy Mountain Line Incorporated |
| CMLZ | Containers Marine Lines Isbrandtsen |
| CMMU | Medcontainers |
| CMO | Union Pacific Railroad Company |
| CMPA | Madison Railroad Division of City of Madison Port Authority |
| CMPU | Complete Logistics Company |
| CMSN | Crowley Marine Services |
| CMU | Columbus Charter Service |
| CMUU | Canada Maritime Agencies Limited |
| CN | Canadian National Railway |
| CNA | Canadian National Railway |
| CNAZ | Grand Trunk Western Railroad Incorporated (CN) |
| CNDX | Connecticut Department of Transportation |
| CNEU | Canadian National Railway |
| CNEZ | Canadian National Railway |
| CNGU | Sicng (Ind. Chim. Du Nord de la Grece SA) |
| CNGX | CONAG Finance Incorporated-CNG Transmission Corporation |
| CNHX | Ontario Power Generation Incorporated |
| CNIS | Canadian National Railway |
| CNLX | CANAC International Incorporated |
| CNMZ | Consolidated Rail Corporation |
| CNNU | Compania Nacional de Nabegacao (US African Line) |
| CNOR | Cincinnati Northern |
| CNOW | Columbia and Northern Railway Company |
| CNPU | Canadian National Railway |
| CNPZ | Canadian National Railway |
| CNQ | Canadian National Railway |
| CNRR | California Northern Railroad |
| CNRU | Canadian National Railway |
| CNRX | Canadian National Railway |
| CNRZ | Canadian National Railway |
| CNSX | Consolidated Oil and Transportation Company Incorporated |
| CNTP | Cincinnati New Orleans and Texas Pacific Railway Company |
| CNTX | Continental Tank Car Corporation |
| CNUR | C and NC Railroad Corporation |
| CNVX | Convoyeur National Incorporated |
| CNW | Union Pacific Railroad Company |
| CNWX | Canadian Wheat Board |
| CNWZ | Union Pacific Railroad Company |
| CNYX | Central New York Locomotive Company |
| CNZR | Central New England Railroad Company |
| CO | CSX Transportation Incorporated |
| COAX | Trinity Rail Management Incorporated |
| COBX | Cobre Mining Company Limited |
| COCX | Chevron Oronite Company LLC |
| COEH | Conecuh Valley Railroad |
| COER | Crab Orchard and Egyptian Railroad |
| COEZ | Crab Orchard and Egyptian Railroad |
| COLX | Alliant Energy |
| COMX | Commonwealth Edison Company |
| CONU | Contrans |
| CONX | Conoco Incorporated |
| COOK | Cook Transit |
| COOX | First Union Rail |
| COP | City of Prineville Railway |
| COPX | CanadianOxy Industrial Chemicals Limited Partnership |
| CORP | Central Oregon and Pacific Railroad Incorporated |
| CORU | CATU Containers SA |
| CORX | Coors Brewing Company |
| COSU | China Ocean Steamship Limited |
| COSX | Cabot Corporation CAB-O-SIL Division |
| COTX | GLNX Corp |
| COZ | CSX Transportation Incorporated |
| CP | Canadian Pacific Railway Company |
| CPAA | Canadian Pacific Railway Company |
| CPAX | CITGO Petroleum Corporation |
| CPBU | Soo Line Railroad (CPR) |
| CPBZ | Soo Line Railroad (CPR) |
| CPCX | Chevron Phillips Chemical Company LP |
| CPDR | Carolina Piedmont Division/South Carolina Central Railroad Company |
| CPDU | Delaware and Hudson Railway Company Incorporated |
| CPDX | Chevron USA Incorporated |
| CPDZ | Delaware and Hudson Railway Company Incorporated |
| CPGZ | ContainerPort Group Incorporated |
| CPHX | Ontario Power Generation Incorporated |
| CPI | Canadian Pacific Railway Company |
| CPIX | ICI Acrylics Incorporated |
| CPLX | CPLX Leasing Limited |
| CPOX | Consumers Power Company |
| CPPU | Canadian Pacific Railway Company |
| CPPX | Consolidated Papers Incorporated |
| CPPZ | Canadian Pacific Railway Company |
| CPRS | Canadian Pacific Railway Company |
| CPRX | Carolina Power and Light Company |
| CPRZ | Canadian Pacific Railway Company |
| CPT | Canadian Pacific Railway Company |
| CPVU | Containers and Pressure Vessels Limited |
| CPWX | Canadian Wheat Board |
| CQPA | Central Columbiana and Pennsylvania Railway Incorporated |
| CR | Norfolk Southern Railway Company |
| CRAZ | Cornucopia Transportation Incorporated |
| CRCX | Consolidated Rail Corporation |
| CRCZ | Norfolk Southern Railway Company |
| CRDX | Chicago Freight Car Leasing Company |
| CRE | Consolidated Rail Corporation (Eastern District) |
| CREU | Canadian Retail Shippers Association |
| CREX | Citicorp Railmark Incorporated |
| CREZ | Canadian Retail Shippers Association |
| CRGX | Cargill Incorporated |
| CRIJ | Carolina Rail Services Incorporated |
| CRIX | Citicorp Railmark Incorporated |
| CRL | Chicago Rail Link |
| CRLE | Coe Rail Incorporated |
| CRLU | Carlisle Leasing International |
| CRLX | Canadian Railserve Limited |
| CRMU | Norfolk Southern Railway Company |
| CRMZ | Norfolk Southern Railway Company |
| CRN | Norfolk Southern Railway Company |
| CRPU | Norfolk Southern Railway Company |
| CRPX | Centennial Gas Liquide LLC |
| CRQU | Norfolk Southern Railway Company |
| CRR | CSX Transportation Incorporated |
| CRRX | Canon City and Royal Gorge Railroad LLC |
| CRSX | Cost Rail Service |
| CRTZ | Norfolk Southern Railway Company |
| CRXU | Cronos Containers (U.K.) |
| CRYX | Cryo-Trans Incorporated |
| CRZ | Norfolk Southern Railway Company |
| CS | Burlington Northern and Santa Fe Railway Company |
| CSAU | Costa Line |
| CSBX | Cargill Incorporated - Salt Division |
| CSCD | Cascade and Columbia River Railroad Company |
| CSCX | Coal Supply Corporation |
| CSDX | Metropolitan Water Reclamation District of Greater Chicago |
| CSKR | C and S Railroad Corporation |
| CSKU | Consolidated Services Incorporated |
| CSL | Chicago Short Line Railway Company |
| CSMX | Carol and Andy Muller |
| CSNX | Trident NGL Incorporated |
| CSO | Connecticut Southern Railroad |
| CSOX | CITGO Petroleum Corporation |
| CSP | Camas Prairie RailNet Incorporated |
| CSPX | Chesapeake Speciality Products |
| CSRX | Conway Scenic Railroad |
| CSRZ | CSX Transportation Incorporated |
| CSS | Chicago SouthShore and South Bend Railroad |
| CSTX | Canada Starch Company Incorporated |
| CSUX | City of Colorado Springs Department of Electric Generation |
| CSVU | Compania Sud Americana de Vapores GmbH |
| CSWX | Central and South West Services Incorporated |
| CSXE | CSX Transportation Incorporated |
| CSXT | CSX Transportation Incorporated |
| CSXU | CSX Transportation Incorporated |
| CSXZ | CSX Transportation Incorporated |
| CSYX | Central Soya Company Incorporated |
| CT | City of Columbia (Columbia Terminal) |
| CTCU | Container Trading Company |
| CTCX | Endasa SA de CV |
| CTE | Cen-Tex Rail Link Limited |
| CTEU | Spanish Lines |
| CTEX | PLM International Incorporated |
| CTGZ | Combined Transport Group Incorporated |
| CTIE | Kansas City Southern Railway Company |
| CTIU | CTI-Container Transport International Incorporated |
| CTIX | Southeastern Industrial Enterprises Incorporated |
| CTIZ | CTI-Container Transport International Incorporated |
| CTKU | Container Tank Services Limited |
| CTLX | Endasa SA de CV |
| CTML | Cairo Terminal Railroad Company |
| CTN | Canton Railroad Company |
| CTNX | General Electric Rail Services Corporation |
| CTOU | Chem-Rail Logistics LLC |
| CTPX | Courtesy Corporation |
| CTR | Clinton Terminal Railroad Company |
| CTRN | Union Pacific Railroad Company |
| CTRR | Cloquet Terminal Railroad Company Incorporated |
| CTRU | Container Trading Company |
| CTRW | Carlton Trail Railway Company (OmniTRAX) |
| CTRX | C and T Refinery Incorporated |
| CTSU | Bibby Bros Company |
| CTSX | CTS Cement Manufacturing Incorporated (Chem Comp Systems) |
| CTSZ | Carotrans International |
| CTTX | TTX Company |
| CTUU | Container Trading Company |
| CTVX | Cleveland Terminal and Valley Railway Incorporated |
| CTWU | Container Trading Company |
| CTZZ | Continental Transportation Company |
| CUEX | Colorado-Utility Electric Association |
| CUOH | Columbus and Ohio River Rail Road Company |
| CUST | Chicago Union Station Company |
| CUVA | ISG Cleveland Works Railway Company |
| CV | Grand Trunk Western Railroad Incorporated (CN) |
| CVC | Canadian National Railway |
| CVQ | Grand Trunk Western Railroad Incorporated (CN) |
| CVR | Cimarron Valley Railroad LC |
| CVRX | Locomotive and Tower Preservation Fund Limited |
| CVRY | Caddo Valley Railroad Company |
| CVRZ | Grand Trunk Western Railroad Incorporated (CN) |
| CVYR | Caddo Valley Railroad Company |
| CW | Colorado and Wyoming Railway Company |
| CWBX | C. W. Brooks Incorporated |
| CWCX | Canandaigua Wine Company Incorporated |
| CWCY | Caldwell County Railroad Company |
| CWEX | Midwest Generation LLC |
| CWIU | Con-Way Intermodal |
| CWIZ | Con-Way Intermodal |
| CWMX | Chemical Waste Management Incorporated |
| CWP | Chicago Rail Link |
| CWR | CWR Incorporated |
| CWRL | Central Western Railway Corporation (RailAmerica) |
| CWRO | ISG Cleveland Works Railway Company (Cleveland Works Railway Company) |
| CWRY | Commonwealth Railway Incorporated |
| CWRZ | Providence and Worcester Railroad Company |
| CWTX | ChemWest Industries Incorporated |
| CWTZ | Con-Way Truckload Services |
| CXCZ | CSX Lines LLC |
| CXPZ | CSX Transportation Incorporated |
| CXRZ | CSX Transportation Incorporated |
| CXVZ | CSX Intermodal Incorporated |
| CYCY | Crystal City Railroad Incorporated |
| CYDX | Conrad Yelvington Distributors Incorporated |
| CYTX | Construcciones Y Trituaraciones SA de CV |
| CZCX | Crown Zellerbach Corporation |
| CZRY | Carrizo Gorge Railway Incorporated |
| DA | Canadian Pacific Railway Company |
| DACX | VIP Tank Services |
| DAFU | Dafra Lines SA |
| DAFX | Department of Defense Troop Support and Aviation Material Readiness |
| DAFZ | Dafra Lines SA |
| DAIR | D and I Railroad Company |
| DAKR | Dakota Rail Incorporated |
| DAKS | Dakota Short Line |
| DAKX | DAK Americas LLC |
| DALT | Dallas Terminal Railway |
| DALZ | D and A Leasing Incorporated |
| DAPX | Dairyland Power Cooperative |
| DARU | Dart Containerline Incorporated |
| DARZ | Dart Intermodal Incorporated |
| DATU | Dart Containerline Incorporated |
| DATX | DATX Associates |
| DAVX | W. R. Grace and Company - Conn. Davison Chemical Division |
| DAWX | D.A. Walmsley and Company |
| DAX | Occidental Chemical Corporation |
| DBCX | BASF Corporation |
| DBSU | Donbar Steamship Company Incorporated |
| DBUX | CIT Group/Capital Finance Incorporated |
| DC | Delray Connecting Railroad Company |
| DCAX | Tarmac Fla. Incorporated |
| DCBX | Degussa Corporation |
| DCCU | Dow Corning Corporation |
| DCCX | McDonnell Douglas Corporation |
| DCFX | PLM International Incorporated |
| DCIU | Dana Container Incorporated |
| DCIX | Danella Construction Corporation |
| DCLU | Dutch Container Leasing B.V. |
| DCLX | Dow Chemical Canada Incorporated |
| DCOU | Dow Corning Corporation |
| DCPX | Dart Container Corporation of Pennsylvania |
| DCRR | Dubois County Railroad |
| DCSU | Delta Conteneur Service |
| DCTX | PLM International Incorporated |
| DDDX | Frontier Cooperative Company |
| DDEX | Dupont Dow Elastomers LLC |
| DDNX | Didion Incorporated |
| DEBX | Ceres AG Products |
| DEEX | Detroit Edison Company |
| DEGX | Mississippi Power Company |
| DEMX | Demeter Incorporated |
| DETX | Detroit Edison Company |
| DFTX | DTE Transportation Services Limited |
| DGBY | Digby Trucklines |
| DGCX | Dakota Gasification Company |
| DGHX | IMC Chemicals |
| DGIX | D and G Enterprises LLC |
| DGNO | Dallas Garland and Northeastern Railroad Incorporated |
| DH | Delaware and Hudson Railway Company Incorporated |
| DHNY | Delaware and Hudson Railway Company Incorporated |
| DHPX | Degussa Corporation |
| DHRU | Den Hartogh NV |
| DIIU | Dart Intermodal Incorporated |
| DJBX | Gandy Dancer Incorporated (Donald J. Bertel) |
| DJJX | Joseph Transportation Incorporated |
| DJLX | Joseph Leasing Limited |
| DJMX | Daniel John Marnell |
| DJPX | Joseph Transportation Incorporated |
| DJRX | Joseph Transportation Incorporated |
| DJTX | Joseph Transportation Incorporated |
| DKPX | Duke Power Company (Scale Test Cars) |
| DKS | Union Pacific Railroad Company |
| DKUX | Exxon Mobil Corporation |
| DL | Delaware-Lackawanna Railroad Company |
| DLC | Drummond Lighterage |
| DLFX | Diversified Lease Funding Incorporated |
| DLKU | Deltank Limited |
| DLMX | Daylight Locomotives and Machine Works Incorporated |
| DLPX | DeGussa Canada Limited |
| DLRX | General Electric Rail Services Corporation |
| DLSX | Diesel Supply Company Incorporated |
| DLTX | Dale L. Thornborough |
| DLVX | Thiokol Corporation |
| DLWR | Depew Lancaster and Western Railroad Company Incorporated |
| DLWX | D.L. and W. Incorporated |
| DM | Lake State Railway Company |
| DME | Dakota Minnesota and Eastern Railroad Corporation |
| DMHX | Davenport Mammoet LLC |
| DMIR | Duluth Missabe and Iron Range Railway Company |
| DMIX | ADM Transportation |
| DMLX | General Electric Rail Services Corporation |
| DMLZ | DML Containers |
| DMM | Dansville and Mount Morris Railroad Company |
| DMVW | Dakota Missouri Valley and Western Railroad Incorporated |
| DNAX | Dana Railcare |
| DNE | Duluth and Northeastern Railroad Company |
| DOCX | Du Pont Canada Incorporated |
| DODU | Department of Defense (US) |
| DODX | Deptartment of Defense Military Traffic Management Command |
| DODZ | Department of Defense (US) 20' chassis |
| DOEX | Doe Run Resources Corporation (The Doe Run Company) |
| DOLX | Dolese Brothers Company |
| DOTX | USDOT/Federal Railroad Administration |
| DOWU | Dow Chemical Company |
| DOWX | Dow Chemical Company |
| DPDZ | Delaware and Hudson Railway Company Incorporated |
| DPGX | Tractech Systems |
| DPIX | Dufour Petroleum Incorporated |
| DQE | De Queen and Eastern Railroad Incorporated |
| DR | Dardanelle and Russellville Railroad Incorporated |
| DREX | ProTrade Steel Company Limited |
| DRGW | Union Pacific Railroad Company |
| DRGX | Denver and Royal Gorge Railway LLC |
| DRI | Rock Island and North Western RR Company Davenport |
| DRIR | Denver Rock Island Railroad |
| DRMX | Danbury Railway Museum Incorporated |
| DRSX | D.O.T. Rail Services Incorporated |
| DRTU | Dart Intermodal Incorporated |
| DRTZ | Dart Intermodal Incorporated |
| DSA | Soo Line Railroad (CPR) |
| DSBU | Ameribrom Incorporated |
| DSCX | DIFCO Incorporated |
| DSIX | Dowell Schlumberger Incorporated |
| DSLX | DeGussa Corporation |
| DSLZ | Intermodal Services Incorporated |
| DSRC | Dakota Southern Railway Company |
| DSRR | Delta Southern Railroad Company |
| DSSX | Detroit Salt Company LLC |
| DT | Decatur Junction Railway Company |
| DTCX | DTE Transportation Services Incorporated |
| DTEX | Dresser Transportation Equipment Division of Dresser Industries |
| DTI | Grand Trunk Western Railroad Incorporated (CN) |
| DTIZ | Grand Trunk Western Railroad Incorporated (CN) |
| DTLX | Delta Tank Line Company |
| DTRR | Housatonic Rail Road Company |
| DTS | Grand Trunk Western Railroad Incorporated (CN) |
| DTTX | TTX Company |
| DTZZ | Direct Transit Incorporated |
| DUCX | Du Pont Canada Incorporated |
| DUFX | Duffy and Sons Incorporated |
| DUKX | Dupps Company |
| DUPX | Du Pont De Nemours and Company Incorporated |
| DUT | Denver Union Terminal Railway Company |
| DUTC | Dallas Union Terminal |
| DV | Delaware Valley Railway Company |
| DVLX | Freeport-McRo-Ran Sulphur Company |
| DVR | Devco Railway Cape Breton Development Corporation (Coal Division) |
| DVRU | Dover Limited |
| DVS | Delta Valley and Southern Railway Company |
| DVSZ | Delta Valley and Southern Railway Company |
| DWAU | Degussa Antwerpen NV |
| DWC | Canadian National Railway |
| DWCX | David Witherspoon Incorporated |
| DWP | Duluth Winnipeg and Pacific Railway |
| DYLX | Transportation Equipment |
| DYNX | Dyno Nobel Incorporated |
| EACH | East Camden and Highland RR Company |
| EACU | East Asiatic Company Limited |
| EAGX | Eaglebrook Incorporated |
| EARY | Eastern Alabama Railway |
| EASO | EASX Corporation (EASX Railroad Corporation) |
| EASU | Waterfront Container Leasing Company Incorporated |
| EASZ | Waterfront Container Leasing Company Incorporated |
| EBAX | Albermarle Corporation |
| EBBX | Ed Burrier and Associates |
| EBPX | Empire Builder Private Cars |
| ECBR | East Cooper and Berkeley Railroad Company |
| ECCX | Ethyl Canada Incorporated |
| ECDU | ECDC Environmental LC |
| ECDX | Ethyl Petroleum Additives Incorporated |
| ECGX | Alabama Power Company |
| ECIX | Erman Corporation |
| ECLX | ELM-Central Rail Leasing LP |
| ECO | Ecorail Incorporated |
| ECOX | Eco East |
| ECOZ | Ecorail Incorporated |
| ECPX | E.C.C. America Incorporated |
| ECQX | Engineered Carbons Incorporated |
| ECRX | Econo-Rail Corporation |
| ECRZ | Norfolk Southern Railway Company |
| ECTB | East Chattanooga Belt Railway Company |
| ECUX | Exxon Mobil Corporation |
| ECXX | ECDC Environmental LC |
| EDCX | El Dorado Chemical Company |
| EDEX | Empire District Electric Company |
| EDGX | Alliant Energy |
| EDIU | EDI Incorporated |
| EDIZ | EDI Incorporated |
| EDW | El Dorado and Wesson Railway Company |
| EDZX | Envases de Zacatecas SA de CV |
| EE | Ellis and Eastern Company |
| EEC | East Erie Commercial Railroad |
| EEIX | Electric Energy Incorporated |
| EELX | General Electric Rail Services Corporation |
| EFRR | Effingham Railroad Company |
| EGSX | Entergy Gulf States Incorporated |
| EHSX | Essex Hybrid Seed Company Incorporated |
| EICX | Edlow International Company |
| EIDU | Ethyl S A |
| EIRC | Eastern Illinois Railroad Company |
| EIRR | Eastern Idaho Railroad Incorporated |
| EISU | Evergreen International (USA) |
| EJE | Elgin Joliet and Eastern Railway Company |
| EJR | East Jersey Railroad and Terminal |
| EKBU | Keiserling (UK) Limited |
| EKLU | K Line |
| EL | Norfolk Southern Railway Company |
| ELCX | Eli Lilly and Company |
| ELFX | Electric Fuels Corporation |
| ELKR | Elk River Railroad Incorporated |
| ELKX | Elkem Metals Company |
| ELS | Escanaba and Lake Superior Railroad Company |
| ELSX | Kentucky May Coal Company Incorporated |
| ELTX | Soltex Polymer Corporation |
| EM | Edgemoor and Manetta Railway |
| EMAX | EMAS |
| EMCU | Evergreen Marine Corporation |
| EMCZ | Evergreen International (USA) Corporation |
| EMEU | East Med Tanks Limited |
| EMHR | East Mahanoy and Hazelton Railroad Company |
| EMHU | EMP |
| EMIX | Environmental Management Incorporated |
| EMMU | Eastern Mediterranean Container Company Limited |
| EMPU | REZ-1 |
| EMPX | Empiregas Equipment Corporation |
| EMRY | Eastern Maine Railway Company |
| EMTU | East-Med Tanks International |
| EMUU | REZ-1 |
| EN | Canadian Pacific Railway Company |
| ENDX | GATX de Mexico SA de CV |
| ENGX | Englehard Corporation |
| ENR | E and N Railway Company (1998) Limited (RailAmerica) |
| ENRX | United States Enrichment Corporation |
| ENSZ | Norfolk Southern Railway Company |
| EOGX | Union Carbide Ethylene Oxide/Glycol Company |
| EPAX | Exxon Mobil Corporation |
| EPCX | Enterprise Products Company |
| EPIX | EPIC |
| EPRY | East Penn Railway Incorporated |
| EPTC | East Portland Traction Company |
| EQUX | Equistar Chemicals |
| ERBU | Containers for Bulk Haul Kieserling |
| ERCU | Erco Industries Limited |
| ERCX | EXCEL Railcar Corporation |
| ERFU | Ermefer SA |
| ERIX | Eric Dewayne Hopp |
| ERLX | General Electric Rail Services Corporation |
| ERSX | Excel Railcar Services Incorporated |
| ESCX | First Security Bank National Association |
| ESHR | Eastern Shore Railroad Incorporated |
| ESLJ | East St. Louis Junction Railroad |
| ESLZ | East St. Louis Junction Railroad |
| ESRX | Empire State Railcar Incorporated |
| ESSU | K Line |
| ESSX | Colonial Chemical Company |
| ETC | East Texas Central Railroad |
| ETCX | Eastman Chemical Company Incorporated |
| ETL | Essex Terminal Railway Company |
| ETMX | Etarco Rail Services Incorporated |
| ETRX | Arkansas Power and Light Company |
| ETRY | East Tennessee Railway LP |
| ETSX | Emery Tree Service Incorporated |
| ETTX | TTX Company |
| EUGX | Farmland Industries Incorporated |
| EURX | Eurocan Pulp and Paper Company |
| EUSX | Exxon Mobil Corporation |
| EV | Everett Railroad Company |
| EVAU | Eisenbahn-Vverkehrsmittel A.G. |
| EVT | Evansville Terminal Company Incorporated |
| EWR | Elkhart and Western Railroad Company |
| EWSX | Indianapolis Power and Light Company |
| EXEX | Commonwealth Edison Company |
| EXFU | Exsif |
| EXMX | Express Marco Incorporated |
| FAIX | FAIX Leasing |
| FALX | Falk Corporation |
| FANU | Brenner Tank Incorporated |
| FAPR | Floydada and Plainview Railroad Company |
| FBAU | Ahlers Lines NV |
| FBDC | Ford County Historical Railroad Preservation Foundation |
| FBFU | Marine Transworld Equipment Corporation |
| FBMU | CIE Maritime Belge SA |
| FBMX | Fayblock Materials |
| FBSU | Franco Belgian Services |
| FBZU | China Ocean Shipping Company |
| FC | Fulton County Railroad Incorporated |
| FCCM | Compania de Ferrocarriles Chiapas Mayab SA de CV |
| FCCX | Finova Capital Corporation |
| FCEN | Florida Central Railroad Company Incorporated |
| FCEX | Cenex Harvest States Cooperative |
| FCHZ | Flexi-Van Leasing Incorporated |
| FCM | Ferrocarriles Nacionales de Mexico |
| FCOX | FLO CO2 Incorporated |
| FCP | Ferrocarriles Nacionales de Mexico |
| FCPZ | National Railways of Mexico (Ferrocarriles Nacionales) |
| FCSX | Florida Crushed Stone Company |
| FCTX | Farmers Commodities Transportation |
| FDDM | Union Pacific Railroad Company |
| FDSU | Foodsource Incorporated |
| FDSZ | Foodsource Incorporated |
| FEC | Florida East Coast Railway Company |
| FECU | Yamashita-Shinnihon Line |
| FECZ | Florida East Coast Railway Company |
| FEIX | Farmers Elevator Incorporated of Grace City |
| FEXZ | Florida Express Carriers Incorporated |
| FFEZ | Frozen Food Express |
| FFFZ | Flexi-Van Leasing Incorporated |
| FFIX | Procor Limited |
| FFTX | Fun Trains Incorporated |
| FGCX | Florida Gulf Coast Railroad Museum Incorporated |
| FGER | Fruit Growers Express Company |
| FGGX | Farmers Grain Co-Operative |
| FGLK | Finger Lakes Railway Corporation |
| FGLX | Factor Gas Liquids Incorporated |
| FGMR | Fruit Growers Express Company |
| FGWX | Federal Grain Inspection Service (USDA) (Scale Test Cars) |
| FILX | Wellman Incorporated |
| FIMX | Franklin Industrial Minerals (FIM) |
| FINU | Interpool Limited |
| FINX | Trinity Rail Management Incorporated |
| FIR | Flats Industrial Railroad Company |
| FISZ | Ecorail Incorporated |
| FJLX | Big West Oil Company |
| FLAX | Flexsys America LP |
| FLAZ | Flexi-Van Leasing Incorporated |
| FLCX | Flex Leasing Corporation |
| FLDX | DTE Transportation Services Incorporated |
| FLEX | RailLease Incorporated |
| FLGZ | Flexi-Van Leasing Incorporated |
| FLIX | Farmland Industries Incorporated |
| FLJX | Big West Oil Company |
| FLNX | Ohio Railway Supply (R.P. Flynn Incorporated) |
| FLOX | Flex Leasing Corporation |
| FLRX | ADM Milling Company |
| FLSX | Great Miami Incorporated |
| FLT | Foss Launch and Tug |
| FLTZ | Flexi-Van Leasing Incorporated |
| FLXU | Flexi-Van Containers/Chassis |
| FLXZ | Flexi-Van Leasing Incorporated |
| FMCU | FMC Corporation Industrial Chemical Group |
| FMGU | Flota Mercante Grancolombiana SA |
| FMID | Florida Midland Railroad Company Incorporated |
| FMIX | CCKX Incorporated |
| FMLX | FMC Corporation |
| FMOX | FMC Corporation |
| FMRC | Farmrail Corporation |
| FNAX | Ferrellgas LLP |
| FNE | TFM SA de CV |
| FNOR | Florida Northern Railroad Company Inc |
| FORZ | Flexi-Van Leasing Incorporated |
| FP | Fordyce and Princeton Railroad Company |
| FPAX | Formosa Transrail Corporation |
| FPBX | International Paper Corporation |
| FPCX | Oxy Vinyls LP |
| FPN | Ferrocarriles Nacionales de Mexico |
| FPPX | Fayette Power Project |
| FPXZ | Flexi-Van Leasing Incorporated |
| FRDN | H and S Railroad Company Incorporated |
| FREU | ABS Industrial Verification Incorporated |
| FRLU | Farrell Lines Incorporated |
| FRR | Falls Road Railroad Company Incorporated |
| FRRX | Feather River Rail Society |
| FRSU | China Ocean Shipping Company |
| FRTX | Farm-City Transport Incorporated |
| FRVR | Fox Valley and Western Limited |
| FSFL | Burlington Northern and Santa Fe Railway Company |
| FSHX | General Electric Rail Services Corporation |
| FSIX | FSIX Incorporated |
| FSR | Fort Smith Railroad Company |
| FSRR | Ferrocarril del Sureste SA de CV |
| FST | Ferrocarriles Nacionales de Mexico |
| FSTU | Fastrac Intermodal LLC |
| FSTX | Fuel Supply Trust |
| FSTZ | Fastrac Intermodal LLC |
| FSUD | Fort Street Union Depot Company |
| FSVB | Fort Smith and Van Buren Railway Co |
| FTCU | Firsttank Corporation |
| FTMZ | Fruit Growers Express Company |
| FTSX | Fairmont Tamper |
| FTTX | TTX Company |
| FUCU | Shinko Pantec Company Limited |
| FURX | First Union Rail |
| FUS | Ferrocarriles Nacionales de Mexico |
| FVIU | Flexi-Van Incorporated |
| FVIZ | Flexi-Van Leasing Incorporated |
| FVLZ | Venezuelan Line |
| FVPZ | Flexi-Van Leasing Incorporated |
| FVRR | Fredonia Valley Railroad Incorporated |
| FVW | Fox Valley and Western Limited |
| FWAZ | Flexi-Van Leasing Incorporated |
| FWCR | Florida West Coast Railroad Incorporated |
| FWD | Burlington Northern and Santa Fe Railway Company |
| FWDB | Fort Worth and Dallas Belt Railroad |
| FWDR | Fort Worth and Dallas Railroad Company |
| FWIU | Trans Ocean Limited |
| FWLX | Foster Wheeler Limited |
| FWRY | Fillmore Western Railway Company |
| FwTZ | Flexi-Van Leasing Incorporated |
| FWWR | Fort Worth and Western Railroad Company |
| FXE | Ferrocarril Mexicano SA de CV |
| GA | CSX Transportation Incorporated |
| GAAB | Georgia and Alabama Division South Carolina Central Railroad Company |
| GABX | General American Marks Company |
| GACX | General American Marks Company |
| GAEX | General American Marks Company |
| GAFX | Fuller Company |
| GALX | Georgia Power Company |
| GAMX | Arrendadora Nacional De Carros De Ferrocaril |
| GANO | Georgia Northern Railway Company |
| GAPX | Georgia Gulf Corporation-Plaquemine Division |
| GARX | GATX de Mexico SA de CV |
| GASX | General American Marks Company |
| GATU | Gateway Container Leasing |
| GATX | General American Marks Company |
| GBRX | Greenbrier Leasing Corporation |
| GBRY | Gettysburg Railway |
| GBRZ | Greenbrier Leasing Corporation |
| GBW | Fox Valley and Western Limited |
| GC | Georgia Central Railway LP |
| GCAU | G.C.A. Transport Limited |
| GCCX | General American Marks Company |
| GCDU | Overseas Container Limited |
| GCEU | Genstar Container Corporation |
| GCEZ | Genstar Container Corporation |
| GCFX | Alstom Canada Incorporated - Transport |
| GCIX | Gabriel Chemicals Incorporated |
| GCLX | Gold Coast Limited |
| GCLZ | Global Chassis Leasing Incorporated |
| GCMX | Gold Coast Chapter - National Railway Historical Society Incorporated |
| GCOX | Gold Coast Railroad Museum Incorporated |
| GCPU | Genstar (Burlington Northern and Santa Fe Railway Company) |
| GCPX | Georgia Gulf Corporation PVC Division |
| GCRX | Grand Canyon Railway Incorporated |
| GCSR | Gulf Colorado and San Saba Railway |
| GCSU | G.C.S. Containers Service SA |
| GCTU | Gulf Container Lines |
| GCTX | General Chemical Corporation |
| GCW | Garden City Western Railway Company |
| GCX | Honeywell International Incorporated |
| GDCX | General American Marks Company |
| GDJX | Grimmel Industries |
| GEAX | Trinity Rail Management Incorporated |
| GECX | General Electric Company Transportation Systems Business Operations |
| GECZ | GE Captial Container Finance Corporation |
| GEGX | GE Gas Turbine |
| GELX | Grain Marketing LC |
| GEMX | General Electric Rail Services Corporation |
| GENX | General Electric Rail Services Corporation |
| GEOX | GEO Specialty Chemicals |
| GEPX | Trinity Rail Management Incorporated |
| GETX | General American Marks Company |
| GETZ | Transport International Pool Incorporated |
| GEX | General Electric Company |
| GEXR | Goderich-Exeter Railway Company Limited (Rail America) |
| GF | Norfolk Southern Railway Company |
| GFAX | Gordon Fay Associates Incorporated |
| GFC | Grand Falls Central Railway Company Limited |
| GFCX | Glens Falls Lehigh Cement Company |
| GFCZ | General Foods Corporation |
| GFLX | Greenfield Logistics LLC |
| GFR | Grand Forks Railway Company |
| GFRR | Georgia and Florida Railroad Company |
| GFSX | General American Marks Company |
| GGCX | Georgia Gulf Corporation-Plaquemine Division |
| GGIX | Garvey International Garvey Grain Division |
| GGMX | Golden Gate Railroad Museum Incorporated |
| GGPX | General American Marks Company |
| GGS | Georgia Great Southern Division South Carolina CentralRailroad |
| GHBX | G. Heileman Brewing Company Incorporated |
| GHRD | Green Hills Rural Development (Chillicothe-Brunswick Rail Maintenance Authority) |
| GIEX | General American Marks Company |
| GIHX | Gifford Hill and Company (Cornerstone C and M Incorporated) |
| GILX | Gilman Paper Company |
| GIMX | General American Marks Company |
| GITM | Golden Isles Terminal Railroad Incorporated |
| GKLX | Gold Kist Incorporated |
| GLBZ | Trac Lease Incorporated |
| GLCU | Flex-Van Leasing Incorporated |
| GLCX | Great Lakes Carbon Corporation |
| GLKU | Great Lakes Chemical Corporation |
| GLKX | Great Lakes Chemical Corporation |
| GLNX | GLNX Corporation |
| GLRX | Georgetown Loop Railroad Incorporated |
| GLSR | Gloster Southern Railroad Corporation |
| GLSX | Glacier State Distribution Services Incorporated |
| GMGX | M and G Polymers USA LLC |
| GMHX | General American Marks Company |
| GMIX | Chicago Freight Car Leasing Company |
| GMO | Illinois Central Railroad Company (CN) |
| GMRC | Green Mountain Railroad Corporation |
| GMRY | Great Miami and Scioto Railway Company |
| GMSR | Kansas City Southern Railway Company |
| GN | Burlington Northern and Santa Fe Railway Company |
| GNA | Kansas City Southern Railway Company |
| GNAX | Holnam Incorporated |
| GNBC | Grainbelt Corporation |
| GNCU | Gallatin National Company |
| GNFX | City of Gainesville Florida |
| GNLX | Georgia Industrial Leasing Company |
| GNRR | Georgia Northeastern Railroad Company |
| GNWR | Genesee and Wyoming Railroad Company |
| GOCU | Greenfield Overseas Container Incorporated |
| GOCX | Chevron Phillips Chemical Company LP |
| GOHX | General American Marks Company |
| GONX | TTX Company |
| GOT | Toronto Area Transit Operating Authority |
| GOTU | Gulf Overseas Towing |
| GPBX | Georgia-Pacific Corporation |
| GPCX | Georgia-Pacific Corporation |
| GPDX | General American Marks Company |
| GPFX | General American Marks Company |
| GPIX | Sunbelt Cement |
| GPLU | Management Control and Maintenance SA |
| GPLX | General American Marks Company |
| GPMX | Georgia-Pacific Corporation - Mid Continent Wood Products Manufacturing Division |
| GPPX | Georgia-Pacific Corporation |
| GPSX | Georgia-Pacific Corporation Eastern Wood Products Manufacturing Division |
| GPUX | GPU Service Corporation |
| GR | Grand Rapids Eastern Railroad Incorporated |
| GRCX | Granite Rock Company |
| GRDX | Grand River Dam Authority |
| GREX | Georgetown Rail Equipment Company |
| GRFF | Georgia and Florida Railroad Company |
| GRIV | Gauley River Railroad LLC |
| GRMX | Gopher State Railway Museum |
| GRN | Carolina Piedmont Division South Carolina Central Railroad Company |
| GRNR | Grand River Railway Company |
| GROI | Genesee Rail-One Incorporated |
| GROX | First Union Rail |
| GRPX | CIT Group/Capital Finance Group |
| GRR | Georgetown Railroad Company |
| GRRX | Wampum Hardware |
| GRSX | Gunderson Rail Services |
| GRTX | Savage-Tolk Energy Services |
| GRWR | Great Walton Railroad Company |
| GRYX | Transmatrix Incorporated |
| GSAX | Granite State Concrete Company |
| GSCU | Eurotainer US Incorporated |
| GSCX | General American Marks Company |
| GSF | Georgia Southern and Florida Railway Company |
| GSIX | Williams Energy Ventures Incorporated |
| GSM | Great Smokey Mountains Railway |
| GSNX | Helm Financial Corporation |
| GSOR | Indiana Hi-Rail Corporation |
| GSRX | Golden Spike Railroad Services |
| GSSX | Gopher State Scrap and Metal |
| GSTU | Genstar Container Corporation |
| GSWR | Georgia Southwestern Division South Carolina Centrao Railroad Company |
| GTA | Grand Trunk Western Railroad Incorporated (CN) |
| GTAX | Harvest States Cooperative |
| GTEU | General Transport Equipment Co Inc |
| GTIS | Guilford Transportation Industries |
| GTIZ | G. T. Intermodal U.SA |
| GTLZ | G. T. Leasing |
| GTPZ | TIT Services |
| GTR | Great River Railroad; (Rosedale-Bolivar County Port Commission) |
| GTRA | Golden Triangle Railroad |
| GTTX | TTX Company |
| GTW | Grand Trunk Western Railroad Incorporated (CN) |
| GTWQ | Grand Trunk Western Railroad Incorporated (CN) |
| GTZZ | GT Trucking Incorporated |
| GU | Grafton and Upton Railroad Company |
| GUAX | Georgia Power Company |
| GUEX | General American Marks Company |
| GURZ | Grafton and Upton Railroad Company |
| GVDX | Oxy Vinyls LP |
| GVSR | Galveston Railroad LP |
| GWAX | Railroad Salvage and Restoration Incorporated |
| GWCX | Greenway Centre LLC |
| GWIX | GWI Leasing Corporation |
| GWR | Great Western Railway Company |
| GWRC | Georgia Woodlands Railroad Company |
| GWRS | Great Western Railway Company |
| GWSR | Great Western Railway Company |
| GWSW | GWI Switching Services LP |
| GWWE | Gateway Eastern Railway Company |
| GWWR | Gateway Western Railway |
| GYLX | Gaylord Container Corp |
| HABX | Habco International Incorporated |
| HALX | Holland American Line - Westours Incorporated |
| HAMU | Costa Line |
| HANU | Hansa Line |
| HANX | L. Hansen's Forwarding |
| HAPX | Helm-Atlantic Leasing LLP |
| HARX | General Electric Rail Services Corporation |
| HATU | H A T Enterprises Incorporated |
| HATX | Helm Financial Corporation |
| HATZ | H A T Enterprises Incorporated |
| HB | Hampton and Branchville Railroad Company Incorporated |
| HBGX | HBG Enterprises of Tampa Incorporated |
| HBL | Harbor Belt Line |
| HBRY | Hudson Bay Railway Company (OmniTRAX) |
| HBT | Houston Belt and Terminal Railway |
| HBWX | Georgia Power Company |
| HCBX | Chevron Phillips Chemical Company LP |
| HCDU | ER Nahrungsmittel Ges.MBH and Company KG. |
| HCGX | North American Salt Company |
| HCIU | Steam Packet Yard |
| HCLX | Basell Canada Incorporated |
| HCMX | Harnischfeger CCorporation |
| HCPX | Occidental Chemical Corporation |
| HCRR | Honey Creek Railroad Incorporated |
| HCRY | Huron Central Railway (GWI) |
| HCSX | Helm Chesapeake LLP |
| HCTX | Martin Marietta Corporation |
| HDMU | Hyundai Merchant Marine (America) Incorporated |
| HDMZ | Hyundai Merchant Marine (America) Incorporated |
| HDSX | RailAmerica Equipment Corporation |
| HE | Hollis and Eastern Railroad Company |
| HECX | Hoosier Energy REC Incorporated |
| HELX | Helm Financial Corporation |
| HENU | Provincial Trailer Rentals |
| HENZ | Provincial Trailer Rentals |
| HEPX | Hydro One (Ontario) |
| HEQX | Helm Financial Corporation |
| HERX | General Electric Rail Services Corporation |
| HESR | Huron and Eastern Railway Company |
| HESU | Heritage Environmental Services Incorporated |
| HESX | Heritage Environmental Services |
| HESZ | Heritage Environmental Services Incorporated |
| HGPX | Harrison Gypsum Company |
| HHEX | H and H Engineering Construction Incorporated |
| HHHX | Public Service Company of Colorado |
| HHLX | H and H Locomotive Leasing Incorporated |
| HIIX | TTX Company - Hamburg Division |
| HINX | Heritage Inks International Corporation |
| HIPX | Reliant Energy HL and P |
| HJBX | H.J. Baker and Brothers Incorporated |
| HJCU | HANJIN Container Lines Limited |
| HJCZ | HANJIN Container Lines Limited |
| HJVX | Helm Financial Corporation |
| HKGU | Hong Kong Island |
| HKIU | Hong Kong Islands Line America SA |
| HKPU | Hong Kong Islands Line |
| HKTU | Hong Kong Islands Line America SA |
| HKUU | Hong Kong Islands Line America SA |
| HKZZ | Hong Kong Islands Line America SA |
| HLBZ | Hill Brothers Transportation |
| HLCU | Hapag-Lloyd A G |
| HLCX | Helm Financial Corporation |
| HLEX | Hunstman Polymers Corporation |
| HLGX | Helm Financial Corporation |
| HLLX | Helm Financial Corporation |
| HLMX | Helm Financial Corporation |
| HLSC | Hampton Railway Incorporated |
| HLTX | BP AMOCO Chemical Company Chemical Division |
| HMAX | Huntsman Corporation |
| HMCR | Huntsville and Madison County Railroad Authority |
| HMCX | HoltraChem Manufacturing Company LLC |
| HMFX | Florida Rock Industries Incorporated |
| HMIX | Henkels and McCoy |
| HMJX | Helm Financial Corporation |
| HMR | Hoboken Manufacturers |
| HMWX | Heckett MultiServ |
| HN | Hutchinson and Northern Railway Company |
| HNPU | Navale Et Commerciale Havraise Penninsulaire |
| HOCU | Hoegh Container Lines |
| HOEU | Hoechst Aktiengesellschaft |
| HOG | Heart of Georgia Railroad |
| HOKX | Occidental Chemical Corporation |
| HOMX | PLM International Incorporated |
| HONX | Honeymead Products Company (Division of Harvest States Cooperatives) |
| HOS | Hoosier Southern Railroad |
| HOWZ | Flex-Van Leasing Incorporated |
| HOYU | Hoyer GMBH Internationale |
| HPAX | International Paper Company |
| HPCX | Hercules Incorporated |
| HPIX | Besell USA Incorporated |
| HPJX | Helm-Pacific Leasing |
| HPLX | Exxon Mobil Corporation |
| HPPX | Huntsman Polypropylene Corporation |
| HPTD | High Point Thomasville and Denton Railroad |
| HPTU | Highway Pipeline |
| HRCX | Heritage Railcar |
| HRDX | Silver Star Enterprises Incorporated |
| HREX | Heavy Railroad Excavations Incorporated |
| HRLU | Hudson Railway Equipment Company (Division of Hudson Leasing Company) |
| HRLZ | Hudson Railway Equipment Company |
| HRRC | Housatonic Railroad Company |
| HRRX | On-Track Railcar Services Incorporated |
| HRS | Holidaysburg and Roaring Spring Railroad Company |
| HRSX | Harbor Rail Services of California Incorporated |
| HRT | Hartwell Railroad Company |
| HS | H and S Railroad Company Incorporated |
| HSCX | Steel Wheels Limited |
| HSFZ | Atchison Topeak and Santa Fe Railway |
| HSIX | Housing Starts Incorporated |
| HSLU | Haulage Services Limited |
| HSRR | Hardin Southern Railroad Incorporated |
| HSRZ | H and S Railroad Company Incorporated |
| HTCX | General Electric Rail Services Corporation |
| HTMU | Hansen and Tidemann Incorporated |
| HTSU | High Tech Transport Limited |
| HTSX | Herzog Transit Services Incorporated |
| HTTX | TTX Company |
| HTW | Hoosac Tunnel and Wilmington |
| HUBA | Burlington Northern and Santa Fe Railway Company |
| HUDX | Hudson Technologies Incorporated |
| HUKU | Huktra (UK) Limited |
| HUTX | Hutchinson Transportation Company |
| HWCX | Halliburton Company |
| HWPX | Hiram Walker and Sons Incorporated |
| HYDX | Praxair Incorporated |
| HYWX | Georgia Power Company |
| HZGX | Herzog Contracting Corporation |
| IAIS | Iowa Interstate Railroad Limited |
| IALU | Japan Line Limited |
| IANR | Iowa Northern Railway |
| IAPX | Air Liquide America Corporation |
| IASZ | Iowa Interstate Railroad Incorporated |
| IATR | Iowa Traction Railroad Company |
| IBCX | Indiana Boxcar Corporation |
| IBNU | Interpool Container Pty Limited |
| IBPX | Trinity Industries Leasing Company |
| IBT | International Bridge and Terminal Company |
| IBYU | Tuscola and Saginaw Bay Railway Company |
| IC | Illinois Central Railroad Company (CN) |
| ICCU | ICCU Containers Incorporated |
| ICCX | International Catalyst Corporation |
| ICE | Iowa Chicago and Eastern Railroad Corporation |
| ICEU | Inter-Continental Equipment Incorporated |
| ICEZ | GATX Capital Corporation |
| ICG | Illinois Central Railroad Company (CN) |
| ICG | Illinois Central Railroad Company (CN) |
| ICGU | Illinois Central Railroad Company (CN) |
| ICGZ | Illinois Central Railroad Company (CN) |
| ICHU | Ingetra AG |
| ICIU | Intermodal Containers Incorporated |
| ICIX | ICI Americas Incorporated |
| ICIZ | Intermodal Containers Incorporated |
| ICLU | International Container Leasing |
| ICLX | Intercoastal Leasing Incorporated |
| ICLZ | International Chassis Leasing Incorporated |
| ICMU | Interox America |
| ICMX | Cargill Dry Corn Ingredients Incorporated |
| ICOU | Japan Line Limited |
| ICPU | Intermodal Container Pool Inc |
| ICPZ | Intermodal Container Pool Inc |
| ICRK | Indian Creek Railroad Company |
| ICRU | Ingetra AG |
| ICRX | Island Creek Corporation |
| ICRZ | Illinois Central Railroad Company (CN) |
| ICSU | Transamerica Leasing Incorporated |
| ICSZ | Transamerica Leasing Incorporated (Union Pacific) |
| IDCU | Ideal Container |
| IDOX | US Deptartment of Energy Idaho Operations Office |
| IDSZ | Industrial Distribution Service Incorporated |
| IEAU | Intermodal Equipment Associates |
| IELZ | Iran Express Lines |
| IESX | Alliant Energy |
| IFBX | General Electric Rail Services Corporation |
| IFCX | Interstate Foods Corporation |
| IFLU | Interflow |
| IFSU | Interlink Freight Systems |
| IFWZ | Independent Freightway Incorporated |
| IGPX | Industrial Steam Products |
| IHAU | Ihora Chemical Industrial |
| IHB | Indiana Harbor Belt Railroad Company |
| IHCU | CSD Assignment-temporary |
| IHRC | Indiana Hi-Rail Corporation |
| IHSX | Western Vancouver Island Heritage Society (Alberni Pacific Railway) |
| IICZ | Illinois Central Railroad Company (CN) |
| IIIU | III Transportation |
| IIIZ | III Transportation |
| IILU | Independent Container Line |
| IILZ | Independent Container Line |
| IIRZ | III Transportation |
| IKCU | Interpool |
| IKKU | ICCU Containers Incorporated |
| IKSU | Transamerica Leasing Incorporated |
| ILDX | General Electric Company - Lighting Business Group |
| ILMU | Flow Line Transport |
| ILSX | Independent Locomotive Service |
| ILTU | International Liquid Transport Company Bv |
| ILW | Illinois Western Railroad |
| IMCX | IMC Global Operations Incorporated |
| IMEX | Indiana and Michigan Electric Company |
| IMMX | Industrial Minera Mexico SA |
| IMRL | Iowa Chicago and Eastern Railroad Corporation |
| IMRR | Illinois and Midland Railroad |
| IMSX | International Mill Service |
| IMSZ | Intermodal Systems Incorporated |
| IMTX | Ag Processing Incorporated |
| IMXZ | Intermodal Express Incorporated |
| IN | Indiana Northeastern Railroad Company |
| INCU | Intercontinental Transport B.V. (ICT) |
| INCX | INCO Limited |
| INCZ | Intercontinental Transport B.V. (ICT) |
| INCZ | Intercontinental Transport B.V. (ICT) |
| INDU | Dorothea |