| C&A | The Chicago and Alton R.R. Co. | 23-Jul |
| Alton R.R. | 4/38-1/52 | |
| CA | Chesapeake & Albemarie R.R. Co., Inc. | added 7/90; 1/94; eliminated 7/96; 7/2000 |
| CAAX | Arrow Industries, Inc. | added 4/90; eliminated 10/92 |
| MHC Inc., Wholly Owned Subsidiary of ConAgra, Inc. | added 10/92; 1/94-7/2000 | |
| CABX | Cabot Carbon Co. | 4/38-10/57 |
| Cabot Corp. | 4/61-7/2000 | |
| CACV | Cooperstown and Charlotte Valley Ry. Corp. | 1/75; added 4/75; 1/80; eliminated 10/88; 1/94 |
| The New York, Susquehanna and Western Ry. Corp. | eliminated 4/96 | |
| CACX | The Columbia Alkali Corp. | Apr-38 |
| Cracker Asphalt Corp. | 7/65-4/70 | |
| Young Refining Corp. | eliminated 10/72 | |
| CAD | Cadiz R.R. Co. | 1/75-1/80; eliminated 1/89; eliminated 4/89 |
| CADX | C.E. Cadieux | Apr-38 |
| Cadillac Tank Car Co. | 1/52-4/70; eliminated 4/71 | |
| CAN DO, Inc. | Jul-00 | |
| CAEX | Canadian Arsenals Ltd. | 1/52-7/65; eliminated 1/66 |
| CAGX | MHC Inc., Wholly Owner Subsidiary of ConAgra, Inc. | 1/80-7/2000 |
| CAGY | Columbus and Greenville Ry. Co. | 1/80-7/2000 |
| CAIX | Cominco American, Inc. | added 4/66; 10/66-1/80; eliminated 5/83 |
| CALA | The Carolina Southern R.R. Co. | added 7/97; 7/2000 |
| CALX | The Calco Chemical Co., Inc. | Apr-38 |
| Calco Chemical Division, American Cyanamid Co. | 1/52; eliminated 10/53 | |
| American Cyanamid Co., Calco Chemical Division | added 10/53; eliminated 4/54 | |
| American Cyanamid Co. | added 4/54 | |
| Calhoun Trading Co., Inc. | added 10/74; 1/75; eliminated 7/76 | |
| California Railcar Corp. | added 7/79; 1/80-7/2000 | |
| CAMX | Canamax Commodity Corp. | added 10/81; eliminated 1/85 |
| Chrysler Capital Transportation Services, Inc. | added 4/87; eliminated 1/88 | |
| Chrysler Rail Transportation Corp. | added 1/88; 1/94; eliminated 1/97 | |
| CANX | The Canfield Tank Line | 4/38-1/52; eliminated 10/53 |
| John H. Grace Co. | added 10/53; eliminated 4/54 | |
| Canadian Industries Ltd., Explosives and Ammunition Division | added 1/66; 10/66-1/75 | |
| Canadian Industries Ltd., De Salaberry Works, Explosives and Ammunition Division | eliminated 4/78 | |
| Canadian National Ry. Co. | eliminated 10/93 | |
| CANAC International, Inc. | added 1/93; 1/94-7/2000 | |
| CAOX | The B.F. Goodrich Co. & Chemical Group | added 10/95 |
| B.F. Goodrich Co.--Chemical Group | eliminated 7/99 | |
| Westlake CA & O | added 7/99; 7/2000 | |
| CAPX | The Capital City Products Co. | 1/52-4/61; eliminated 7/65 |
| TransAlta Utilities Corp. | added 10/81; 1/94-7/2000 | |
| CARR | The Carrollton R.R. | 1/75-1/94; eliminated 4/96; 7/2000 |
| CARW | Carolina Western | Jan-75 |
| CARX | Cargo Carriers Inc. | added 7/55; 10/57-7/65; eliminated 10/65 |
| Carlon Division, Indian Head, Inc. | added 10/72; 1/75 | |
| Carlon, an Indian Head Co. | 1/80; eliminated 7/84 | |
| Carlon | added 7/84; 1/94; eliminated 1/95 | |
| Lamson & Sessions | added 1/95; eliminated 1/99; 7/2000 | |
| CASO | Canada Southern Ry. | 1/52-7/65 |
| Canada Southern Ry. (New York Central System) | Oct-66 | |
| Penn Central Transportation Co. (Canada Southern Ry.) | Jan-75 | |
| Penn Central Transportation Co., Robert W. Blanchette, Richard C. Bond and John H. McArthur, Trustees | eliminated 4/76 | |
| Consolidated Rail Corp. | added 4/76; 1/80 | |
| CP Rail (CASO) | eliminated 10/87; 1/94-7/2000 | |
| CBC | Carbon County Ry. Co. | 1/52-10/66 & 1/75-1/80; eliminated 7/84 |
| Chemin de fer Baie des Chaleurs Inc. | Jul-00 | |
| CBCX | Colonial Brick Company, Inc. | added 7/87; 1/94; eliminated 10/96 |
| Morton International, Inc. | added 10/96; eliminated 1/2000; 7/2000; added 10/2000; eliminated 4/2001 | |
| CBGR | Council Bluffs Ry. Co. | added 1/92; 1/94 |
| Council Bluffs Ry. Co./Great Western Ry. of Iowa | eliminated 10/95 | |
| Council Bluffs Ry. Co./Great Western Ry. of Iowa, L.L.C. | added 10/95; 7/2000; eliminated 7/2001 | |
| CBIX | Continental Blacks, Inc. | added 4/54; 10/57; eliminated 10/58 |
| Central Bi-Products | added 4/81; 1/94-7/2000 | |
| CBL | Conemaugh & Black Lick R.R. Co. | 4/38-1/94; eliminated 10/99; 7/2000 |
| CBMX | Olin Mathieson Chemical Corp. | 10/57-7/65; eliminated 10/66 |
| CBNS | Cape Breton & Central Nova Scotia Ry. | 1/94; added 4/97; 7/2000 |
| CBOA | Council Bluffs and Ottumwa Ry., Inc. | added 1/90; eliminated 7/91 |
| CBPX | Cattle Car Leasing Co. | 4/70-1/80; eliminated 4/80 |
| CB&Q | Burlington Route (Chicago, Burlington & Quincy R.R.) | 23-Jul |
| Chicago, Burlington & Quincy R.R. | 4/38-10/66 | |
| CBQ | Burlington Northern Inc. | 1/75-1/80; eliminated 7/81 |
| Burlington Northern R.R. Co. | added 7/81; 1/94 | |
| Burlington Northern Santa Fe Ry. Co. | Jul-00 | |
| CBRM | Chillicothe-Brunswick Rail Maintenance Authority | added 7/94; added 7/95; eliminated 4/97; 7/2000 |
| CBRW | Columbia Basin R.R. Co., Inc. | added 4/97; 7/2000 |
| CBRX | The Columbiana Boiler Co. | 4/61-7/65; eliminated 4/66 |
| CBRY | Copper Basin Ry., Inc. | added 10/86; eliminated 7/92; added 10/92; 1/94-7/2000 |
| CBX | Canadian Breweries Ltd. | Jan-52 |
| Carling Brewing Co. | 10/57-4/61 | |
| CBYN | Crosbyton Ry. Co. | added 7/91; eliminated 1/92 |
| Crosbyton Ry. Co., Inc. | added 1/92; eliminated 1/93; 1/94-7/2000 | |
| CC | Chicago Central & Pacific R.R. Co. | added 4/86; 1/94-7/2000 |
| C&CA | Canton & Carthage R.R. | 4/38-4/61 |
| CCAX | California Contemporary Trust | added 10/86; eliminated 10/87 |
| FDJ Leasing | added 10/87; eliminated 10/93; 1/94-7/2000 | |
| CCBX | Carbide and Carbon Chemicals Corp. | Apr-38 |
| Carbide and Carbon Chemicals Co., a Division of Union Carbide and Carbon Corp. | Jan-52 | |
| Union Carbide Corp. | 10/57-4/61 | |
| Union Carbide Corp., Chemicals Division | 7/65-10/66; eliminated 10/67 | |
| Union Carbide Corp., Chemicals and Plastics | added 10/67; eliminated 1/68 | |
| Union Carbide Corp., Chemicals and Plastics Operations Division | added 1/68; 4/70-1/75; eliminated 1/79 | |
| Union Carbide Corp., Chemicals and Plastics Division | added 1/79; 1/80; eliminated 7/80 | |
| Union Carbide Corp. | added 7/80; eliminated 10/80 | |
| Union Carbide Corp., Chemicals and Plastics Division | added 10/80; eliminated 5/83 | |
| Union Carbide Corp. | added 5/83; eliminated 1/93 | |
| Union Carbide Chemicals and Plastics Co., Inc. | added 1/93; 1/94; eliminated 1/95; eliminated 4/95 | |
| Union Carbide Corp. | added 1/95; added 4/95; 7/2000 | |
| CCCL | Connecticut Central R.R. Co. | added 1/88; 1/94; eliminated 10/98; 7/2000 |
| CCCT | Central California Traction Co. | Apr-38 |
| CCCX | Continental Carbon Co. | 1/52-10/57; eliminated 7/59 |
| Coastal Chemical Corp. | added 7/60; 4/61-4/70; eliminated 10/72 | |
| Carondelet Coke Corp. (captive service) | Jan-94 | |
| CCD | The Colorado Springs & Cripple Creek District Ry. (Colorado Springs & Cripple Creek R.R.) | 23-Jul |
| CCDX | Dayton Power and Light Co. | added 4/78; 1/80-1/94; eliminated 10/98; 7/2000 |
| CCEX | Chipman Chemical Co., Inc. | 4/38-10/66; eliminated 7/67 |
| CCGX | Cando Contracting Ltd. | added 7/97; eliminated 1/2000; 7/2000 |
| CCHX | Columbian Carbon (Canada) Inc. | added 10/66; 10/66-4/70; eliminated 4/71 |
| Cities Service Chemicals, Ltd. | added 4/71; 1/75-1/80; eliminated 4/81 | |
| Columbian Chemicals Canada Ltd. | added 4/81; 1/94-7/2000 | |
| CCIM | Corpus Christie Terminal | 1/94-7/2000 |
| CCIX | Consolidated Chemical Industries | 4/38-1/52 |
| Consolidated Chemical Industries, Division of Stauffer Chemical Co. | 10/57; eliminated 10/58 | |
| Stauffer Chemical Co., Consolidated Chemical Industries Division | added 10/58 | |
| Consolidated Chemical Industries, Division of Stauffer Chemical Co. | Apr-61 | |
| Consolidated Chemical Division (Stauffer Chemical Co., Consolidated Chemical Division) | 7/65-4/70 | |
| Stauffer Chemical Co., Consolidated Chemical Division | 1/75-1/80 | |
| Rhone-Poulenc Basic Chemicals Co. | eliminated 1/94 | |
| CCK | Campbell's Creek R.R. Co. | 7/23-4/61 |
| CCKX | California Contemporary, Inc. | added 4/62; 7/65-1/80; eliminated 4/86 |
| CCKX, Inc. | added 4/86; 1/94; eliminated 7/99; 7/2000 | |
| CCKY | Chattooga & Chickamauga Ry. Co. | added 1/90; 1/94-7/2000 |
| CCLX | Crystal Car Line, Inc. | 4/38-7/2000 |
| CCMX | Crossett Chemical Co. | 4/38-4/61 |
| Georgia-Pacific Corp., Crossett Division Chemical | 7/65-4/70 | |
| Calcium Carbonate Co. | 1/80; eliminated 5/83; 1/94 | |
| CCNX | Catalin Corp. of America | 4/38-7/65; eliminated 10/65 |
| Catalin Corp. | added 10/65; 10/66; eliminated 4/68 | |
| Ashland Chemical Co., Division of Ashland Oil & Refining Co. | added 4/68; eliminated 10/68 | |
| Ashland Oil & Refining Co. | added 10/68; eliminated 4/70 | |
| Ashland Chemical Co., Division of Ashland Oil, Inc. | added 4/70; 4/70-1/75 | |
| CC&O | Carolina, Clinchfield & Ohio Ry. | 23-Jul |
| Clinchfield R.R. | 4/38-10/57 | |
| CCO | Clinchfield R.R. Co. | 1/75-1/80 |
| CCOX | Chickasha Cotton Oil Co. | 4/38-10/66; eliminated 10/67 |
| CCPR | Chelatchie Prairie R.R., Inc. | added 4/82; eliminated 4/87 |
| CCPX | Crown Central Petroleum Corp. | 4/38-1/52 |
| Continental Chemical Products of Los Angeles, Inc. | added 4/65; 7/65-4/70; eliminated 4/72 | |
| Canadian Chemical Producers' Association | added 1/92; 1/94-7/2000; eliminated 7/2001 | |
| CCQX | Construction Carrier, Inc. | added 1/75; 1/75-1/80; eliminated 1/85 |
| CCR | Corinth & Counce R.R. Co. | 10/66 & 1/75-1/80; eliminated 4/92 |
| TennRail Corp. | added 4/92; 1/94; eliminated 7/94 | |
| Kansas City Southern Ry. Co. | added 7/94; 7/2000 | |
| CCRA | Camp Chase Industrial R.R. Corp. | Jul-00 |
| CCRR | Claremont Concord R.R. Corp. | added 1/89; 1/94-7/2000 |
| CCRX | Consumers' Co-operative Refineries Ltd. | 4/38-4/70; eliminated 4/70 |
| Coastal Refining & Marketing, Inc. | 1/94-7/2000 | |
| CCRY | Charles City Ry. Lines, Inc. | added 1/88; 1/94-7/2000 |
| CCSX | Columbia Cellulose Co., Ltd. | 10/57; eliminated 7/59 |
| CCT | Central California Traction Co. | 1/52-1/94; eliminated 10/98; 7/2000 |
| CCTX | Central Power and Light Co. | 1/80; added 4/80; 1/94-7/2000 |
| CCUO | Chicago-Chemung R.R. Corp. | added 7/91; 1/94-7/2000 |
| CCWX | California Consolidated Water Co. | Apr-38 |
| Coastal Chem, Inc. | 1/94-7/2000 | |
| CCX | Columbian Carbon Co. | 1/52-4/61; 7/65-10/66; eliminated 4/70 |
| Cities Service Co., Columbian Division | added 4/70; 4/70-1/75; eliminated 4/78 | |
| Cities Service Co. | added 4/78; eliminated 4/79 | |
| Cities Service Co., Columbian Division | added 4/79; eliminated 1/80 | |
| Columbian Chemicals Co.--A Subsidiary of Cities Service Co. | added 1/80; 1/80 | |
| Columbian Chemicals Co., Wholly Owned Subsidiary of Consolidated Mining & Industries, S.A. | eliminated 10/87 | |
| Columbian Chemicals Co., Wholly Owned Subsidiary of Phelps-Dodge Corp. | added 10/87; 1/94-7/2000 | |
| CCXX | Costain Coal Co. | added 1/97; 7/2000 |
| CCY | Central Canada Ry. Co. | 23-Jul |
| CCYR | Colleton County R.R. Co., Inc. | added 4/87; eliminated 4/88 |
| CDAC | Canadian American R.R. Co. | added 4/95; 7/2000; eliminated 4/2001 |
| Bangor and Aroostook Rd. Co. | added 4/2001 | |
| CDBX | Consolidated Dressed Beef Co., Inc. | added 7/67; 4/70; eliminated 11/73 |
| CD&C | Cumberland Ry. & Coal Co. | 7/23-4/61 |
| CDCX | Merchants Despatch Transportation Corp. | added 7/55; 10/57-10/66; eliminated 7/69 |
| Liquid Air Corp. | added 4/90; 1/94; eliminated 1/95 | |
| Air Liquide America Corp. | added 1/95; 7/2000 | |
| CDGX | Carolinas Domestic Gas Co., Inc. | added 4/66; 10/66-1/80; eliminated 10/87 |
| Service Oil Co. | added 7/91; 1/94-7/2000 | |
| CDKX | Cliffs Dow Chemical Co. | 4/38-10/66; eliminated 10/68 |
| Royal Oak Charcoal Co., Northern Division | added 10/68; eliminated 10/69 | |
| CDLX | California Dispatch Line | 4/38-1/52 |
| CDLX | General American Transportation Corp. | Oct-57 |
| CD&M | Clinton, Davenport & Muscatine R.R. | 23-Jul |
| CDM | Clinton, Davenport & Muscatine Ry. | Apr-38 |
| CDPX | Cloverland Dairy Products Co., Inc. | Apr-38 |
| CDTX | California Dept. of Transportation | 1/94-7/2000 |
| CDX | General American Transportation Corp. | 1/52; eliminated 7/55 |
| CEBX | Charles E. Brown, Estate | Apr-38 |
| CEBX | Combustion Engineering, Inc. | added 1/74; 1/75-7/2000 |
| CEDR | Cedar River R.R. Co. | added 4/92; 1/94-7/2000 |
| CEFX | Transportation Corp. of America | added 10/96; eliminated 1/98 |
| The CIT Group/Capital Finance, Inc. | added 1/98; 7/2000 | |
| C&EI | Chicago & Eastern Illinois Ry. Co. | 23-Jul |
| Chicago & Eastern Illinois R.R. | 4/38-10/66 | |
| CEI | Chicago & Eastern Illinois R.R. | 1/75; eliminated 1/77 |
| Missouri Pacific System | added 1/77 | |
| Missouri Pacific R.R. Co. | Jan-80 | |
| Missouri Pacific System | 1/94; eliminated 4/97 | |
| Union Pacific R.R. Co. | added 4/97; 7/2000 | |
| CEIW | Central Indiana & Western R.R. Co., Inc. | added 1/87; eliminated 7/89; 1/94-7/2000 |
| CELX | Celanese Corp. of America | eliminated 1/65 |
| Celtran Inc., a Subsidiary of Celanese Corp. of America | added 1/65 | |
| Celtran, Inc. | Jul-65 | |
| Celtran Inc., a Subsidiary of Celanese Corp. of America | 10/66; eliminated 4/67 | |
| Celtran Inc., a subsidiary of Celanese Corp. | added 4/67; 4/70-1/80; eliminated 7/87 | |
| Celtran Inc., a Subsidiary of Hoechst Celanese Corp. | added 7/87; 1/94-7/2000; eliminated 4/2001 | |
| Celtran Inc., a Subsidiary of Celanese International Corp. | added 4/2001 | |
| CEMR | Central Manitoba Ry., Inc. | Jul-00 |
| CEMX | Cementos Mexicanos, S.A. | added 4/84; eliminated 7/91 |
| Sunbelt Cement, Inc. | added 7/91; 1/94-7/2000; eliminated 1/2001 | |
| Cemex Mexico SA de CV | added 1/2001 | |
| CENX | Central Chemical Co. | Apr-38 |
| Central Chemical, Division of Wilson & Co. | 1/52; eliminated 4/54 | |
| General American Transportation Corp. | added 4/54; 10/57; eliminated 10/60; 4/61 | |
| Western Aggregates, Inc. | added 1/81; 1/94-7/2000; eliminated 7/2000 | |
| CEPX | Certain-teed Products Corp. | Apr-38 |
| Cajun Electric Power Cooperative, Inc. | added 1/79; 1/80-1/94; eliminated 4/95; 7/2000 | |
| Trinity Industries Leasing Co. | added 10/2000 | |
| CERA | Central R.R. Co. of Indianapolis | added 7/89; eliminated 7/93; 1/94-7/2000 |
| CERX | Custom Truck Rental Corp. | added 1/62 |
| Custom Equipment Rentals, Inc. | added 4/66 | |
| Custom Equipment Rentals, Inc. Division of United States Freight Co. | eliminated 7/66 | |
| Choate Chemical Co., a subsidiary of E.R. Carpenter Co., Inc. | added 7/73; 1/75 | |
| Carpenter Chemical Co., a subsidiary of E.R. Carpenter Co., Inc. | Jan-80 | |
| Carpenter Chemical Co. | eliminated 1/91; 1/94 | |
| Carpenter Co. | added 1/2000; eliminated 4/2000 | |
| E.R. Carpenter Co., L.P. | added 4/2000; 7/2000 | |
| CEWX | Canadian Enterprise Gas Products Ltd. | added 7/82; 1/94-7/2000 |
| CEX | Chilhowee Co. (The Mead Corp.) | Apr-38 |
| CF | Cape Fear Rys., Inc. | 7/65 & 1/75-1/80; eliminated 10/84; 1/94-7/2000 |
| CFAX | Combustion By-Products Co. | added 7/63; 7/65-1/75 |
| CFBX | CFBX, Inc. | added 1/80; 1/80; eliminated 1/83 |
| CFIX | The Colorado Fuel & Iron Corp. | 4/38-7/65; eliminated 10/66 |
| CF&I Steel Corp. | added 10/66; 10/66-1/75; eliminated 1/79 | |
| CFLX | Crestbrook Forest Industries, Inc. (captive service) | 1/94-7/2000 |
| CFMX | Cargill, Inc. | added 7/94; 7/2000 |
| CFNR | California Northern R.R. Co., L.P. | 1/94-7/2000 |
| CFPX | Chartrand's Traffic Service | Jan-52 |
| Chartrand's Tank Car Service | eliminated 7/55 | |
| North American Car Corp. | added 10/72; 1/75-1/80 | |
| General Electric Railcar Services Corp. | 1/94; eliminated 10/94 | |
| CFRW | Caney Fork and Western R.R., Inc. | added 7/84 |
| CFRX | Chicago Freight Car & Parts Co. | 1/52-10/57 |
| Chicago Freight Car Co. | Apr-61 | |
| Chicago Freight Car Leasing Co. | 7/65-1/80; eliminated 1/83 | |
| CFSX | C&F Refinery, Inc. | Jan-80 |
| C&T Refinery, Inc. | added 4/80; 1/94-7/2000 | |
| CFTX | Canadian Fertilizers Ltd. | Jul-00 |
| CFVX | C.F. Vissman & Co. | Apr-38 |
| CFWR | The Caney Fork and Western R.R. | added 1/86; eliminated 4/87; 1/94-7/2000 |
| CG | Central of Georgia Ry. Co. | 23-Jul |
| Central of Georgia Ry. | 4/38-10/66 | |
| Central of Georgia R.R. Co. | Jan-75 | |
| Central of Georgia Ry. Co. | Jan-80 | |
| Southern Ry. System | eliminated 1/91 | |
| Norfolk Southern Ry. Co. | added 1/91; 1/94-7/2000 | |
| C&G | Columbus & Greenville R.R. Co. | 23-Jul |
| Columbus & Greenville Ry. Co. | 4/38-10/66 | |
| CGA | Central of Georgia R.R. Co. | Jan-75 |
| Central of Georgia Ry. Co. | Jan-80 | |
| CGAX | Cumberland Gasoline Corp. | 1/52-4/61 |
| General American Transportation Corp. | eliminated 10/59 | |
| Cumberland Gasoline Corp. | added 10/59 | |
| Shippers' Car Line Division of ACF Industries, Inc. | 7/65; eliminated 4/66 | |
| Cargill Inc. | added 1/96 | |
| Cargill Inc. -- C.G.D. Division | added 7/96; 7/2000 | |
| CGBX | Canadian General Transit Co., Ltd. | added 4/57; 10/57-1/80; eliminated 1/81 |
| CGTX, Inc. | added 1/81; eliminated 7/82 | |
| Procor Ltd. | added 7/82; 1/94 | |
| Dow Chemical Canada, Inc. | added 4/97; 7/2000 | |
| CGCX | Consolidated Food Processors, Inc. | 1/52-10/57; eliminated 1/58 |
| Monarch Foods, Canners & Processors | added 1/58 | |
| Columbia Foods, a Division of Consolidated Foods Corp. | Apr-61 | |
| Columbia Food, a Division of Michigan Fruit Canners, Inc. | eliminated 7/64 | |
| County Gas Co. | added 4/70; 4/70-1/80; eliminated 7/81 | |
| Continental Grain Co. | added 10/84; 1/94; eliminated 1/2000 | |
| Cargill Inc.--C.G.D. Division | added 1/2000; 7/2000 | |
| CGDX | Country Gas Distributors, Inc. | added 5/83; 1/94-7/2000 |
| CGEX | Canadian General Electric Co. Ltd. | added 4/67; 4/70-1/80; eliminated 10/89 |
| Cargill, Inc. | added 1/98; eliminated 4/98 | |
| Cargill, Inc. -- C.G.D. Division | added 4/98; 7/2000 | |
| CGFX | Consolidated Gas Co. of Florida, Inc. | 1/80; eliminated 1/94; 7/2000 |
| CGIX | Cook's Gas, Inc. | added 1/74; 1/75; eliminated 4/79 |
| CGLX | Canadian General Transit Co., Ltd. | added 4/57; 10/57-1/80; eliminated 1/81 |
| CGTX Inc. | added 1/81; 1/94-7/2000 | |
| CGMX | CGTX Inc. | added 7/82; 1/94-7/2000 |
| CGNE | Champagne R.R., Inc. | added 4/93; 1/94; eliminated 10/96; 7/2000 |
| CGOX | Cargill, Inc. | added 10/97; 7/2000 |
| CG&P | Cincinnati, Georgetown & Portsmouth R.R. | 23-Jul |
| CGR | Canadian Government Rys. (Canadian National Rys.) | 23-Jul |
| Central Gulf Ry. Inc. | added 1/2001 | |
| CGRX | Canadian General Transit Co., Ltd. | added 4/61; 4/61 |
| Consolidated Grain and Barge Co. | added 7/88; 1/94-7/2000 | |
| CGSX | California Gas Service Co. | eliminated 1/79 |
| Proflame, Inc. | added 1/79; 1/80-7/2000 | |
| CGT | The Canada and Gulf Terminal Ry. Co. | 1/75-1/94; eliminated 4/95; 7/2000 |
| CGTX | Canadian General Transit Co., Ltd. | 4/38-1/80; eliminated 1/81 |
| CGTX Inc. | added 1/81; 1/94-7/2000 | |
| CGW | Chicago Great Western Ry. Co. | 4/38-10/66 |
| Chicago and North Western Transportation Co. | 1/75-1/94; eliminated 1/95 | |
| Chicago and North Western Ry. Co. | added 1/95; eliminated 10/95 | |
| Union Pacific Ry. Co. | added 10/95; 7/2000 | |
| CGX | Calor Gas Co. | 1/52-10/57; eliminated 10/60 |
| Calor Gas Ltd. | added 10/60; eliminated 4/61 | |
| Suburban Gas of Canada, Ltd. | added 4/61; 4/61 | |
| CHAX | John W. Chartrand (Chartrand's Traffic Service) | Jan-52 |
| Chartrand's Tank Car Service | 10/57; eliminated 1/58 | |
| Chartrand's Tank Car Rentals | added 1/58; eliminated 10/58 | |
| Chartrand's Tank Car Service, Inc. | added 10/58; 4/61-7/2000 | |
| CHBX | The California Conserving Co., Inc. | Apr-38 |
| CHCX | Chapman Chemical Co. | Apr-61 |
| Cedar Heights Clay Co. | added 4/69; 4/70-1/80; eliminated 4/81 | |
| CHDX | Church & Dwight Co., Inc. | added 10/60; 4/61-7/65; eliminated 7/66 |
| CHEX | Chemplex Co. | added 10/67; 4/70-1/80; eliminated 4/85 |
| Northern Petrochemical Co. | added 4/85 | |
| NORCHEM | eliminated 1/86 | |
| NORCHEM, Inc. | added 1/86; eliminated 10/86 | |
| Enron Chemical Co. | added 10/86; eliminated 4/87 | |
| USI Chemicals Co., Inc. | added 4/87 | |
| U.S. Industrial Chemicals Co., Division of National Distillers and Chemical Corp. | eliminated 7/87 | |
| USI Chemicals Co., Division of National Distillers & Chemical Corp. | added 7/87; eliminated 7/88 | |
| Quantum Chemical Corporation, USI Division | added 7/88; 1/94; eliminated 4/98 | |
| Equistar Chemicals, LP | added 4/98; 7/2000 | |
| CH&G | Chicago, Harvard & Geneva Lake Ry. Co. | 23-Jul |
| CHH | Cheswick & Harmar | 1/75-1/80 |
| CHIX | Consolidated Holdings Co., Inc. | added 4/75; 1/80; eliminated 1/83 |
| CHLX | Cutler-Hammer Inc. | added 7/58; 4/61-4/70 |
| Chemleco, Inc. | added 7/81; 1/94-7/2000; eliminated 4/2001 | |
| CHMX | C.H. Masland & Sons | added 10/78; 1/80; eliminated 1/86 |
| Charter Meridian Corp. | Jan-94 | |
| Southern Illinois Railcar Co. | added 4/95; 7/2000; eliminated 4/2001 | |
| First Union Rail | added 4/2001 | |
| CHNY | Cheney R.R. Co., Inc. | Jan-94 |
| CHP | Ferrocarril del Chihuahua Al Pacifico, S.A. | 1/75; eliminated 4/78 |
| Ferrocarril del Chihuahua Al Pacifico, S.A. de C.V. | added 4/78; 1/80 | |
| Ferrocarril del Chihuahua Al Pacifico, S.A. de C.V. (transferred to Ferrocarriles Nacionales de Mexico) | eliminated 10/88 | |
| Ferrocarriles Nacionales de Mexico | added 10/88; 1/94-7/2000 | |
| CHR | Chestnut Ridge Ry. Co. | 1/75-1/80; eliminated 4/81; 1/94-7/2000 |
| CHRC | Chaparral R.R. Co., Inc. | added 7/90; 1/94; eliminated 7/94; 7/2000 |
| CHRR | Chesapeake R.R. Co. | Jul-00 |
| CHRX | Canadian Hidrogas Resources Ltd. | added 7/69; 4/70-1/80; eliminated 1/83 |
| The Chesapeake Division | 1/94-7/2000 | |
| CHSR | Chillicothe Southern R.R. Co. | added 4/86; eliminated 10/87 |
| CHSX | Cenex Harvest States Cooperative | added 4/99; 7/2000 |
| CHTS | Penn Eastern Rail Lines Inc. | added 4/98; 7/2000 |
| CHTT | Chicago Heights Terminal Transfer R.R. Co. | 1/75-1/80 |
| Missouri Pacific System | added 4/81; 1/94; eliminated 4/97 | |
| Union Pacific Ry. Co. | added 4/97; 7/2000 | |
| CHTX | Charlotte Refining Co. | Jan-52 |
| CHV | Chattahoochee Valley Ry. Co. | 7/23-10/66 & 1/75-1/80; eliminated 10/91 |
| CHVX | Chevron U.S.A. Inc. | added 4/80; 1/94; eliminated 4/96 |
| Chevron Chemical Co. | added 4/96; 7/2000 | |
| CHW | Chesapeake Western Ry. | 1/75; added 1/80; 1/80; eliminated 1/91 |
| Norfolk Southern Ry. Co. | added 1/91; 1/94-7/2000 | |
| CHX | Cutler-Hammer Inc. | Jan-52 |
| CI | Cambria and Indiana R.R. Co. | 1/75-1/94; eliminated 10/99; 7/2000 |
| C&IC | Cedar Rapids and Iowa City Ry. | 23-Jul |
| CIC | Cedar Rapids and Iowa City Ry. Co. | 4/38-7/2000 |
| CIFX | The City Ice and Fuel Co. | Apr-38 |
| CIIX | Contico International, Inc. | 1/94-7/2000; eliminated 10/2000 |
| Contico International, L.L.C. | added 10/2000 | |
| CI&L | Chicago, Indianapolis & Louisville Ry. (Monon Route) | 23-Jul |
| CIL | Chicago, Indianapolis & Louisville Ry. Co. (Monon R.R.) | 4/38-10/66 |
| Louisville and Nashville R.R. Co. (Chicago, Indianapolis & Louisville) | 1/75-1/80 | |
| Louisville and Nashville R.R. Co. | eliminated 1/83 | |
| CILX | Canadian Industries Ltd. | 4/38-1/52 |
| Canadian Industries (1954) Ltd. | eliminated 7/56 | |
| CILX | Union Tank Car Co. | added 7/56; 10/57; eliminated 1/58 |
| C&IM | Chicago & Illinois Midland Ry. Co. | 23-Jul |
| Chicago & Illinois Midland Ry. | 4/38-1/52 | |
| CIM | Chicago & Illinois Midland Ry. Co. | 10/57-1/94; eliminated 7/96 |
| Illinois & Midland R.R. Inc. | eliminated 4/97 | |
| CIND | Central Indiana Ry. Co. | Jan-75 |
| Consolidated Rail Corp. | Jan-80 | |
| The Central R.R. Co. of Indiana | added 4/92; 1/94-7/2000 | |
| CINR | Chicago & Indiana R.R. Co. | 1/80; eliminated 4/80 |
| CINX | Carbonic Industries Corp. | 1/75-1/80 |
| CIPX | Central Illinois Public Service Co. | added 10/74; 1/75-1/80; eliminated 4/93; 1/94; added 10/95; eliminated 1/99 |
| Ameren Energy Generating Co. | Jul-00 | |
| CIR | City of Rochelle, Illinois | Jul-00 |
| CIRC | Central Iowa Ry. Co. | added 4/74 |
| Central Iowa Transportation Cooperative d/b/a Central Iowa Ry. Co. | 1/75; eliminated 7/76; 1/80 | |
| CIRR | Chattahoochee Industrial R.R. | 1/75-7/2000 |
| CIRX | Consbec Inc. | added 4/97; 7/2000 |
| CISD | Colonel's Island R.R. Co. | added 10/82; 1/94; eliminated 1/99; 7/2000 |
| CISX | Carnegie-Illinois Steel Corp. | Apr-38 |
| CITX | PLM Railcar Management Services Canada Limited | added 1/87; eliminated 4/91 |
| PLM International, Inc. | added 4/91; 1/94-7/2000 | |
| CIVX | Cargill, Inc. | added 1/62; 7/65-4/70; eliminated 7/70 |
| Cargill, Inc., Vegetable Oil Division | Oct-66 | |
| C&IW | Chicago & Illinois Western R.R. | 4/38-1/52 |
| CIW | Chicago & Illinois Western R.R. | 10/57-10/66 & 1/75-1/80; eliminated 1/81 |
| Chicago & Illinois Western R.R. Co. | added 1/81 | |
| Illinois Central Gulf R.R. Co. | eliminated 4/88 | |
| Illinois Central R.R. Co. | added 4/88; 1/94-7/2000 | |
| CIWN | The Cincinnati, Indianapolis & Western R.R. Co. | 23-Jul |
| CIX | Champion-International Co. | 10/57; eliminated 10/58 |
| Oxford Paper Co., Inc. | added 10/58; eliminated 1/59 | |
| CIXX | Calciner Industries, Inc. | 1/94-7/2000 |
| CJPX | General Electric Rail Services Corp. | added 7/2000; 7/2000 |
| CJRR | C&J R.R. Investment Co., Inc. | added 1/86; eliminated 4/88 |
| CKBX | Cruikshank Brothers Co. | Apr-38 |
| CKIX | Cook Industries, Inc. | added 7/75; eliminated 4/78 |
| C.K. Industries, Inc. | added 10/2000 | |
| CKP | Colorado, Kansas and Pacific Ry. Co. | Jul-00 |
| CKRW | Central Kansas Ry., Inc. | added 10/93 |
| CKRX | Canadian Kodiak Refineries Ltd. | added 7/60; 4/61 |
| CKRY | Central Kansas Ry., Inc. | added 4/93; 1/94-7/2000 |
| CK&S | Chicago, Kalamazoo & Saginaw Ry. | Apr-38 |
| CKSI | Carthage, Knightstown & Shirley R.R. Inc. | added 1/89; eliminated 10/89; 1/94-7/2000 |
| CKSO | Condon, Kinzua & Southern R.R. Co. | Jan-75 |
| C&L | Cornwall & Lebanon R.R. (Penna. R.R. System) | 23-Jul |
| CLBX | Can-Lease Produce Transportation Ltd. | added 1/72; eliminated 7/74 |
| CLC | Columbia & Cowlitz Ry. Co. | 1/75-7/2000 |
| CLCO | Claremont and Concord Ry. Co., Inc. | 7/65-10/66 & 1/75-1/80; eliminated 1/89 |
| CLCX | Commercial Molasses Corp. | Apr-38 |
| Cornwell Chemical Corp. | Jan-52 | |
| Collier Carbon and Chemical Corp. | added 10/66; 10/66-1/75; eliminated 7/78 | |
| Union Chemicals Division, Union Oil Co. of California | added 7/78; 1/80; eliminated 1/87 | |
| Unocal Chemicals Division, Union Oil Co. of California | added 1/87; 1/94; eliminated 7/94 | |
| Unocal Petroleum Products & Chemicals Division, Union Oil Co. of California | added 7/94 | |
| CLEX | Chemical Enterprises, Inc. | eliminated 4/90 |
| CLEX | Cleco Corp. | Jul-00 |
| CLG | Illinois Central Gulf R.R. Co. | 1/75-1/80 |
| CLGR | Central Louisiana & Gulf Ry. | added 10/82; eliminated 1/88 |
| CLIF | Cliffside R.R. Co. | 1/75-1/94 |
| CLIX | Choctaw Leasing, Inc. | 7/65-10/66; eliminated 4/68 |
| Calumet Lubricants | Jul-00 | |
| Calumet Lubricants, Inc. | added 4/2001 | |
| CLK | Cadillac & Lake City Ry. Co. | 7/65-10/66 & 1/75; eliminated 7/76; added 7/78; added 10/78; 1/80; eliminated 4/90; 1/94 |
| CLMX | California Milling Corp. | added 7/56; 10/57-4/61 |
| Cyprus Sierrita Corp. | Jul-00 | |
| CLNA | Carolina Coastal Ry. Inc. | added 7/89; 1/94-7/2000 |
| CLNX | C.F. Claussen & Sons, Inc. | Apr-38 |
| CLOX | Canada Linseed Oil Mills, Ltd. | 4/38-4/61; eliminated 7/65 |
| Clark Refining & Marketing, Inc. | Jul-00 | |
| CLP | The Clarendon and Pittsford R.R. Co. | 1/75; added 1/77; 1/80-7/2000 |
| CLPX | Boulder Scientific Co. | 1/94-7/2000 |
| CLRX | Chas. L. Read & Co., Inc. | 1/52-10/66; eliminated 4/69 |
| Chas. L. Read & Co., Division of Hogan Solvents & Chemicals Corp. | added 4/69; eliminated 10/69 | |
| Hogan Solvents & Chemicals Corp. | added 10/69; 4/70; eliminated 7/70 | |
| Clayton Rail | added 1/93; 1/94-7/2000 | |
| CLSL | Columbia & Silver Creek R.R. Co. | added 7/82; eliminated 4/89; added 1/90; eliminated 10/91; 1/94-7/2000 |
| CLSX | Columbia Sugar Co. (Monitor Sugar, Division of Robert Gage Coal Co.) | Apr-38 |
| CLSX | Cargill Inc. -- Salt Division | added 1/91; 1/94-7/2000 |
| CLTX | Coltexo Corp. | 4/38-4/61; eliminated 1/62 |
| Cominco Ltd. | added 4/67; eliminated 7/68 | |
| Union Tank Car Co. | added 7/68; 4/70; eliminated 4/70 | |
| Cloro de Tehuantepec, S.A. de C.V. | added 1/88; eliminated 4/89; 1/94-7/2000 | |
| CLUX | Chillicothe Lumber Co. | added 10/74; 1/75 |
| CLX | Crew Levick Co. (The Cities Service Oil Co. of Pennsylvania) | Apr-38 |
| Crossett Lumber Co. | 1/52; eliminated 10/53 | |
| CM | The Colorado Midland R.R. Co. (Midland Terminal Ry. Co.) | 23-Jul |
| Central Montana Rail, Inc. | 1/94-7/2000 | |
| CMB | The Cumberland R.R. Co. | 23-Jul |
| CMC | CMC R.R., Inc. | Jul-00 |
| CMCX | Chem-Met Corp. | 4/61; eliminated 7/64 |
| Sweetman Construction Co. | added 7/91; 1/94-7/2000 | |
| CMDX | Cargill, Inc. | added 10/93; 1/94-7/2000 |
| CMER | Curtis, Milburn and Eastern R.R. Co. | 1/80; eliminated 10/90 |
| CM&G | Chicago, Milwaukee and Gary Ry. Co. | 23-Jul |
| CMGN | Central Michigan Ry. Co. | added 1/88; 1/94-7/2000 |
| CMGX | Cities Service Co. | added 1/71; 1/75; eliminated 4/79 |
| Cities Service Co., Minerals Group | added 4/79; 1/80 | |
| CMHX | CarMath, Inc. | added 1/97; 7/2000 |
| CMIX | Consolidated Minerals, Inc. | added 1/90; 1/94; eliminated 1/96; 7/2000 |
| CMKX | Countrymark Cooperative, Inc. | added 1/93; 1/94; eliminated 4/95 |
| CMLX | The Ruberoid Co. | Apr-38 |
| CMNW | Chicago, Missouri and Western Ry. Co. | added 7/87; eliminated 4/90 |
| CMNW | Gateway Western Ry. | added 4/90; eliminated 7/92; 1/94 |
| CMO | Chicago, St. Paul, Minneapolis & Omaha Ry. Co. | 4/38-10/57 |
| Chicago, St. Paul, Minneapolis & Omaha Ry. Co. (Chicago and North Western Ry. Co.) | 4/61-10/66 | |
| Chicago and North Western Transportation Co. | 1/75-1/94; eliminated 1/95 | |
| Chicago and North Western Ry. Co. | added 1/95; eliminated 10/95 | |
| Union Pacific R.R. Co. | added 10/95; 7/2000 | |
| CMPA | Madison R.R., Division of City of Madison Port Authority | added 1/79; 1/80; eliminated 7/90; 1/94-7/2000 |
| CMPX | Chemical Products Corp. | 4/38-10/57; eliminated 4/61 |
| CMRX | Cimarron Gas Liquids Co. | added 10/88; eliminated 10/93 |
| Cimarron Gas Companies Inc. | added 10/93; 1/94; eliminated 1/96 | |
| CMSN | Crowley Marine Services | Jul-00 |
| CMSX | The Consolidated Mining and Smelting Company of Canada, Ltd. | 4/38-7/65; eliminated 10/66 |
| Cominco Ltd. | added 10/66; 10/66; eliminated 7/68 | |
| Union Tank Car Co. | added 7/68; 4/70; eliminated 4/70 | |
| CMTX | John E. Shatford, Agent | Apr-38 |
| N.I.K. Non-Stock Marketing Cooperative | added 1/91; eliminated 1/93; 1/94 | |
| CMWX | Commodities Car Co., Inc. | 1/52-1/80 |
| CMX | Chromium Mining and Smelting Corp. Ltd. | 1/52-10/66; eliminated 1/68 |
| CNYK | Central New York R.R. Corp. | added 4/74 |
| The New York, Susquehanna and Western Ry. Corp. | eliminated 4/96 | |
| CN | Canadian Northern Ry. (Canadian National Rys.) | 23-Jul |
| Canadian National Rys. | 4/38-7/2000 | |
| CNA | Canadian National Rys. | 1/75-7/2000 |
| CNCX | Columbia Nitrogen Corp. | 7/65-1/80; eliminated 7/90 |
| Arcadian Corp. | added 7/90; 1/94 | |
| CNDX | Connecticut Dept. of Transportation | Jul-00 |
| CNE | Central New England Ry. Co. | 23-Jul |
| CNGX | CONAG Finance, Inc.ãConsolidated Natural Gas Transmission Corp. | added 1/85 |
| CONAG Finance, Inc.ãConsolidated Gas Transmission Corp. | eliminated 4/88 | |
| CONAG Finance, Inc.-CNG Transmission Corp. | added 4/88; 1/94-7/2000; eliminated 10/2000 | |
| CONAG Finance, Inc.-Dominion Transmission Inc. | added 10/2000 | |
| CNHX | Ontario Hydro | 1/80; added 5/83; 1/94-7/2000; eliminated 4/2001 |
| Ontario Power Generation Inc. | added 4/2001 | |
| CNIS | Canadian National Rys. | 1/75-7/2000 |
| CNJ | Central R.R. Co. of New Jersey | 7/23-10/66 & 1/75 |
| Central R.R. Co. of New Jersey, Robert D. Timpany, Trustee | eliminated 4/76 | |
| Consolidated Rail Corp. | added 4/76; 1/80-1/94; eliminated 7/99 | |
| CNL | Columbia, Newberry and Laurens R.R. Co. | 1/75-1/80; eliminated 1/83 |
| CNLX | Canat Ltd. | added 1/89; eliminated 1/92 |
| Canadian National Ry. Co. | added 1/92; eliminated 1/93 | |
| CANAC International, Inc. | added 1/93; 1/94-7/2000 | |
| CNO | Canadian Northern Ontario Ry. (Canadian National Rys.) | 23-Jul |
| CNOR | Cincinnati Northern | 1/75-7/2000 |
| CNOW | Columbia & Northern Ry. Co. | Jul-00 |
| CNOX | Canadian Oil Cos. Ltd. | 4/38-4/61 |
| Shell Canada Ltd. | 7/65-1/80; eliminated 10/87 | |
| CNPX | Canadian International Paper Co. | Apr-38 |
| CNQ | Canadian Northern Quebec Ry. (Canadian National Rys.) | 23-Jul |
| Canadian National Rys. | 1/94-7/2000 | |
| CNRR | California Northern R.R. | Jul-00 |
| CNRX | Conroe Creosoting Co. | Jan-52 |
| CNSX | Consolidated Oil & Transportation Co., Inc. | added 1/99; 7/2000 |
| CNTP | The Cincinnati, New Orleans and Texas Pacific Ry. Co. | 1/75-7/2000 |
| CNTX | Continental Tank Car Corp. | 7/65-7/2000 |
| CNUR | C & NC R.R. Corp. | added 7/98; 7/2000 |
| CNVX | Convoyeur National Inc. | Jul-00 |
| CNW | Chicago and North Western Ry. Co. | 4/38-10/66 |
| Chicago and North Western Transportation Co. | 1/75-1/94; eliminated 1/95 | |
| Chicago and North Western Ry. Co. | added 1/95; eliminated 10/95 | |
| Union Pacific R.R. Co. | Jul-00 | |
| CNWS | Chicago and North Western Transportation Co. | Jan-80 |
| Carolina & Northwestern R.R., Inc. | added 10/90; 1/94; eliminated 1/95 | |
| CNWX | The Canadian Wheat Board | added 1/73; 1/75-7/2000 |
| CNYK | Central New York R.R. Corp. | Jan-75 |
| CNYS | Central New York Southern R.R. Corp. | 23-Jul |
| CNYX | Central New York R.R. Corp. | 1/80; eliminated 10/88 |
| Central New York R.R. Corp. (transferred to New York, Susquehanna and Western Ry. Corp.) | added 10/88 | |
| Central New York R.R. Corp. | Jan-94 | |
| CNZR | Central New England R.R. Co., Inc. | Jul-00 |
| C&O | C. & O. Lines (C. & O. Ry.) | 23-Jul |
| Chesapeake & Ohio Ry. | 4/38-10/66 | |
| CO | Chesapeake & Ohio Ry. Co. | 1/75-1/80; eliminated 10/87 |
| CSX Transportation, Inc. | added 10/87; 1/94-7/2000 | |
| COA | Central Ry. Co. of Arkansas | 23-Jul |
| COAX | Transcisco Leasing Co. | added 7/94; eliminated 7/97 |
| Trinity Rail Management, Inc. | added 7/97; 7/2000 | |
| COBX | Imperial Oil, Ltd. | Apr-38 |
| Transit Co., Ltd. | 1/52; eliminated 10/53 | |
| Union Tank Car Co. | added 10/53; 10/57 | |
| Cobre Mining Co., Inc. | eliminated 1/97 | |
| Cobre Mining Co. | added 1/97; eliminated 7/99; 7/2000 | |
| COCX | California Cotton Oil Corp. | Apr-38 |
| California Cotton Oil Co. | 1/52-4/61 | |
| California Cotton Oil Corporation | eliminated 7/65 | |
| Continental Chemical Co. | added 4/73; 1/75-1/80; eliminated 4/80 | |
| Chevron Oronite Co., L.L.C. | added 1/2001 | |
| COE | Colorado & Eastern Ry. Co. | added 7/82; eliminated 5/83 |
| Colorado & Eastern Rd. Co. | added 5/83; eliminated 1/88 | |
| COER | American Rail Heritage, Ltd. d/b/a Crab Orchard & Egyptian R.R. | added 1/78; added 4/79 |
| Crab Orchard & Egyptian R.R. | Jan-80 | |
| American Rail Heritage, Ltd. d/b/a Crab Orchard & Egyptian R.R. | 1/94; eliminated 1/99 | |
| Crab Orchard & Egyptian R.R. | added 1/99; 7/2000 | |
| COLI | Colonel's Island | 1/75-1/80 |
| COLX | Collins Construction Co. | Jan-52 |
| North American Car Corp. | added 1/66; 10/66-1/80; eliminated 7/82 | |
| Wisconsin Power & Light Co. | Jan-94 | |
| Alliant Energy | added 4/2000; 7/2000 | |
| COMX | Commonwealth Edison Co. | added 4/95; 7/2000 |
| CONX | Continental Oil Co. | 4/38-1/75; eliminated 1/80 |
| Conoco Inc. | added 1/80; 1/80-7/2000 | |
| COOK | Cook Transit | 1/94-7/2000 |
| COOX | Cooperative Producers, Inc. | added 7/80; eliminated 4/89 |
| Chrysler Rail Transportation Corp. | eliminated 1/93 | |
| U.S. Rail Services, Inc. | added 1/93; 1/94; eliminated 4/94 | |
| USL Capital Rail Services | added 4/94; eliminated 10/96 | |
| First Union Rail | added 10/96; 7/2000 | |
| CO&P | Chicago, Ottawa & Peoria Ry. (Illinois Traction, Inc.--Illinois Valley Division) | 23-Jul |
| COP | City of Prineville Ry. | 1/75-7/2000 |
| COPR | Copper Range R.R. Co. | 1/52-10/66 |
| COPX | Consolidated Products Co. | 1/52-10/57; eliminated 1/58 |
| Consolidated Products, Division of National Dairy Products Corp. | added 1/58; eliminated 7/58 | |
| Canadianoxy Industrial Chemicals Ltd. Partnership | 1/94; added 1/97; 7/2000 | |
| CORP | Central Oregon & Pacific R.R., Inc. | added 4/95; 7/2000 |
| CORX | Adolph Coors Co. | added 1/87; eliminated 7/89 |
| Coors Brewing Co. | added 7/89; 1/94-7/2000 | |
| COSX | Mid-Continent Petroleum Corp. | 4/38-1/52 |
| D-X Sunray Oil Co. | 10/57; eliminated 10/59 | |
| Cabot Corp., CAB-O-SIL Division | 1/94-7/2000; eliminated 10/2000 | |
| COT | Central Ontario Ry. (Canadian National Rys.) | 23-Jul |
| COTX | The Cudahy Oil Tank Line (Cudahy Car Lines) | Apr-38 |
| COTX | Consolidated Transportation Corp. | added 1/81; eliminated 1/89 |
| Jansen Rail Car, Inc. | added 4/89; 1/94; eliminated 1/96 | |
| GLNX Corp. | added 1/96; eliminated 7/98; 7/2000 | |
| CP | Canadian Pacific Ry. | 7/23-10/66 |
| CP Rail | 1/75-1/94 | |
| CP Rail System | eliminated 1/97 | |
| Canadian Pacific Ry. Co. | added 1/97; 7/2000 | |
| C&PA | Cumberland & Pennsylvania R.R. Co. | 23-Jul |
| CPA | Cumberland & Pennsylvania R.R. | 4/38-1/52 |
| Coudersport & Port Allegany | 1/75-1/80 | |
| CPAA | CP Rail | 1/75-1/94 |
| CP Rail System | eliminated 1/97 | |
| Canadian Pacific Ry. Co. | added 1/97; 7/2000 | |
| CPAX | Compania Mexicana de Petroleo "El Agila", S.A. | Apr-38 |
| CITGO Petroleum Corp. | added 7/93; 1/94-7/2000 | |
| CPBX | Cattle Car Leasing Co. | added 4/68 |
| CPCX | Cosden Petroleum Corp. | 4/38-4/61 |
| Chemical Products Corp. | added 1/69; 4/70-1/75 | |
| CPL Corp., Chemical Products Division | 1/80; eliminated 10/80 | |
| Whittaker Corp., Providence Coatings & Chemicals Division | added 10/80; eliminated 1/81 | |
| CPS Chemical Co., Inc. | 1/94-7/2000 | |
| Chevron Phillips Chemical Co. L.P. | added 1/2001 | |
| CPDR | Carolina Piedmont Division, South Carolina Central R.R. Co., Inc. | added 1/91; eliminated 10/91; 1/94; added 10/94; 7/2000 |
| CPDX | Fruit Growers Express Co. | Jan-52 |
| National Car Co. | eliminated 7/55 | |
| Chevron U.S.A. Inc. | added 10/95; 7/2000 | |
| CPF | Cotton Plant-Fargo Ry. Co. | 1/75; eliminated 7/77 |
| CPFX | Champion Paper and Fibre Co. | 4/38-4/61; eliminated 1/62 |
| Champion Papers, Inc. | added 1/62; eliminated 7/64 | |
| CPHX | Ontario Hydro | 1/80; added 5/83; 1/94-7/2000; eliminated 4/2001 |
| Ontario Power Generation Inc. | added 4/2001 | |
| CPI | CP Rail | 1/75-1/94 |
| CP Rail System | eliminated 1/97 | |
| Canadian Pacific Ry. Co. | added 1/97; 7/2000 | |
| CPIX | Cominco Products Inc. | 10/57-7/65; eliminated 4/66 |
| Continental Polymers Inc. | added 7/81; eliminated 1/93 | |
| ICI Acrylics Inc. | added 1/93; 1/94; eliminated 10/97; 7/2000 | |
| CPKX | Central City Pickle Co. | Jan-52 |
| CPLJ | Camp Lejeune R.R. Co. | 1/75-1/80 |
| CPLT | Camino, Placerville & Lake Tahoe R.R. Co. | 1/75-1/80; eliminated 1/87; eliminated 4/88 |
| CPLX | Currie Products Ltd. | 4/38-10/66; eliminated 10/68 |
| CanPac Leasing Ltd. | added 4/73; 1/75; eliminated 7/78 | |
| Roylease Ltd. | added 7/78; 1/80; eliminated 10/81 | |
| CPLX Leasing Ltd. | added 10/91; 1/94-7/2000 | |
| CPOX | City Point Oil Terminal, Inc. | Apr-38 |
| Consumer's Power Co. | added 7/79; 1/80; eliminated 7/93 | |
| Consumers Power Co. | added 7/93; 1/94; eliminated 1/96; added 10/96; eliminated 7/97; 7/2000 | |
| CPPX | Crystal Pearl Products Co. | Apr-38 |
| Consolidated Papers, Inc. | added 1/75; 1/75-1/80; eliminated 1/94; 7/2000 | |
| CPRS | Canadian Pacific Ry. | Jul-00 |
| CPRX | Carolina Power & Light Co. | added 7/77; 1/80-1/94; eliminated 7/98; 7/2000 |
| CPSX | California Cedar Products Co. | 1/52-10/57; eliminated 7/59 |
| Commercial Plastics Systems, Inc. | eliminated 10/84 | |
| CPT | CP Rail | added 7/88; 1/94 |
| CP Rail System | eliminated 1/97 | |
| Canadian Pacific Ry. Co. | added 1/97; 7/2000 | |
| CPTC | Chicago Produce Terminal | 1/75; eliminated 10/78 |
| CPVX | Cook Paint & Varnish Co. | 4/38-1/75; eliminated 1/78 |
| CPWX | The Canadian Wheat Board | added 1/73; 1/75-7/2000 |
| CPX | Central Packing Co., Inc. | 1/52-10/57; eliminated 4/61 |
| CQPA | Central Columbiana & Pennsylvania Ry., Inc. | Jul-00 |
| CR | Copper Range R.R. Co. | 7/23-10/66 |
| Consolidated Rail Corp. | added 4/76; 1/80-1/94; eliminated 7/99 | |
| Norfolk Southern R.R. Co. (Norfolk Southern) | added 7/99; 7/2000 | |
| CRAX | Crystal Hopper Associates | eliminated 7/86 |
| CR&C | Carlton & Coast R.R. | Apr-38 |
| CRC | Cumberland Ry. Co., Sydney and Louisburg Division | Oct-66 |
| CRCX | Calumet Refining Co. | Apr-38 |
| Calumet Refining Co., a Division of Calumet Industries, Inc. | added 10/65; 10/66 | |
| Calumet Refining Co. | 4/70-1/75 | |
| Calumet Refining Co., a Division of Calumet Industries, Inc. | 1/80; eliminated 10/80 | |
| Consolidated Rail Corp. | Jul-00 | |
| CRDX | Central West Refrigerator Despatch | 4/38-10/57; eliminated 7/59 |
| Chicago Freight Car Leasing Co. | added 7/59; 4/61-7/2000 | |
| CRE | Consolidated Rail Corp. (Eastern Division) | 1/80-7/2000 |
| CREX | Consolidated Railway Equipment Co. | 10/57-4/61 |
| Merchants Investment Co. | 7/65-1/80; eliminated 1/89 | |
| Railmark | added 1/89 | |
| Citicorp Railmark, Inc. | 1/94-7/2000 | |
| CRGX | Cushing Refining & Gasoline Co. | Apr-38 |
| Midland Cooperative Wholesale, Cushing Refining Division | 1/52; eliminated 4/54 | |
| Midland Cooperatives, Inc., Cushing Refining Division | added 4/54; 10/57-10/66 | |
| Midland Cooperatives, Inc. | eliminated 1/69 | |
| Cargill, Inc. | 1/94-7/2000 | |
| CRHX | Clapp Riley & Hall Equipment Co. | 1/52-4/61 |
| CRI | Chicago River & Indiana R.R. | 4/38-7/65 & 1/75; eliminated 4/76 |
| Consolidated Rail Corp. | added 4/76; 1/80; eliminated 1/83; 1/94 | |
| CRIJ | Carolina Rail Services, Co. | added 4/87; eliminated 1/90; 1/94-7/2000 |
| CRIX | North Western Refrigerator Line Co., a Division North American Car Corp. | eliminated 10/58 |
| North Western Refrigerator Line Division North American Car Corp. | added 10/58; 4/61 | |
| North American Car Corp. | 7/65-1/80 | |
| General Electric Railcar Services Corp. | eliminated 7/86 | |
| Citicorp Railmark, Inc. | added 7/90; 1/94-7/2000 | |
| CRI | Chicago River & Indiana R.R. Co. | 7/23 & 10/66 |
| CRL | Chicago Rail Link | added 7/89; 1/94-7/2000 |
| CRLE | Coe Rail, Inc. | eliminated 1/90; added 7/90; 1/94-7/2000 |
| CRLX | The Cudahy Refrigerator Car Line (Cudahy Car Lines) | Apr-38 |
| Cudahy Packing Co. | 1/52-7/65 | |
| Cudahy Car Lines | eliminated 10/65 | |
| Canadian Railserve Ltd. | Jul-00 | |
| CRMX | Cristales Mexicanos, S.A. | 1/52; eliminated 7/55 |
| The Cropmate Co. | eliminated 4/86 | |
| MHC, Inc., Wholly Owned Subsidiary of ConAgra, Inc. | 1/94; eliminated 1/2000; 7/2000 | |
| CR&N | Carolina & Northwestern Ry. | 4/38-10/66 |
| CRN | Carolina & Northwestern Ry. Co. | 1/75-1/80 |
| Southern Ry. System | eliminated 1/91 | |
| Norfolk Southern Ry. Co. | added 1/91; 1/94-7/2000 | |
| CRNX | Coosa River Newsprint Co. | 1/52; eliminated 4/55 |
| CROX | Crosby Chemicals, Inc. | 10/57-1/80; eliminated 10/82 |
| SCM Corp. | added 10/82; eliminated 1/83 | |
| Sylvachem Corp. | added 1/83 | |
| CRP | Central Railroad of Pennsylvania | Jan-52 |
| Central Railroad of New Jersey | 10/57-7/65 | |
| Central Railroad of Pennsylvania | 1/75-1/80 | |
| CRPX | Cairo Pickle Co. | 4/61; eliminated 1/62 |
| Centennial Gas Liquids, L.L.C. | added 1/98; 7/2000 | |
| CRR | Clinchfield R.R. Co. | 4/38-10/66 & 1/75-1/80; eliminated 1/83 |
| Seaboard System R.R., Inc. | added 1/83; eliminated 7/87 | |
| CSX Transportation, Inc. | added 7/87; 1/94-7/2000 | |
| CRRX | Canon City & Royal Gorge R.R. LLC | Jul-00 |
| CRSX | Cost Rail Service | Jul-00 |
| CRTX | Continental Turpentine & Rosin Corp., Inc. | 4/38-1/52 |
| CRVC | The Cimarron River Valley Ry. Co. | added 4/85; eliminated 10/89 |
| CRW | Colorado River Western Ry. | 10/57-7/65 |
| CRX | The Columbus Rendering Co. | Apr-38 |
| CRYX | Cryo-Trans, Co. | added 4/86; eliminated 4/87 |
| Cryo-Trans, Inc. | added 4/87; 1/94-7/2000 | |
| C&S | Colorado & Southern Ry. Co. | 23-Jul |
| Colorado & Southern Ry. | 4/38-10/66 | |
| CS | The Colorado and Southern Ry. Co. | 1/75-1/80; eliminated 4/82 |
| Burlington Northern R.R. Co. | added 4/82; 1/94 | |
| Burlington Northern Santa Fe Ry. Co. | Jul-00 | |
| CSAX | Crucible Steel Co. of America | 1/52; eliminated 7/56 |
| CSBX | Cargill, Inc. -- Salt Division | added 4/98; 7/2000 |
| CSCD | Cascade and Columbia River R.R. Co. | added 10/99; 7/2000 |
| CSCX | The Cincinnati Soap Co. (Hewitt Transportation Co.) | Apr-38 |
| Central Silica Co. | added 10/70; 1/75-1/80; eliminated 4/82 | |
| Oglebay Norton Co. | added 4/82; eliminated 4/89 | |
| Coal Supply Corp. | added 10/90; 1/94-7/2000 | |
| CSDX | Sanitary District of Chicago | 4/38-1/52; eliminated 7/56 |
| Metropolitan Sanitary District of Greater Chicago | added 7/56; 10/57-1/80; eliminated 10/89 | |
| Metropolitan Water Reclamation District of Greater Chicago | added 10/89; 1/94; eliminated 10/94; added 10/96; eliminated 1/97; 7/2000 | |
| C&SE | Colorado & Southeastern R.R. Co. | 23-Jul |
| Colorado & Southeastern R.R. | 4/38-1/52 | |
| CSGX | Transit Co., Ltd. | 4/38-1/52; eliminated 10/53 |
| Union Tank Car Co. | added 10/53; 10/57; eliminated 1/58 | |
| Central Sand and Gravel Co. | added 7/73; 1/75-1/80 | |
| CSKR | C&S R.R. Corp. | 1/94-7/2000 |
| CSKX | Central States Grain & Trading Co. | 1/80; eliminated 1/81 |
| Central States Enterprises, Inc. | added 1/81; eliminated 4/82 | |
| CSL | Chicago Short Line R.R. Co. | 1/75-7/2000 |
| CSLX | Concrete Supply Co. | added 1/75; 1/75; eliminated 1/80 |
| CSMX | Carol & Andy Muller | added 10/96; 7/2000; eliminated 7/2000 |
| CSNX | Fruit Growers Express Co. | Jan-52 |
| Cities Service Co. | added 4/78; eliminated 4/79 | |
| Cities Service Co., NGL Division | added 4/79; 1/80; eliminated 5/83 | |
| Cities Service Oil and Gas Corp. | added 5/83; eliminated 1/86 | |
| OXY Cities Service NGL Inc. | added 1/86; eliminated 7/88 | |
| OXY NGL Inc. | added 7/88 | |
| OXY USA Inc. | eliminated 4/92 | |
| Trident NGL, Inc. | added 4/92; eliminated 10/93; 1/94-7/2000 | |
| CSO | Connecticut Southern R.R. Inc. | added 4/97; 7/2000 |
| CSOX | Cities Service Oil Co. of Pennsylvania | Apr-38 |
| Cities Service Oil Co. | 1/52-10/66; eliminated 10/67 | |
| Cities Service Pipe Line Co. | added 10/67; 4/70-1/75; eliminated 4/78 | |
| Cities Service Co. | added 4/78; eliminated 4/79 | |
| Cities Service Pipe Line Co. | added 4/79; 1/80; eliminated 1/81 | |
| Cities Service Co., Petroleum Products Group | added 1/81 | |
| CITGO Petroleum Corp. | 1/94-7/2000 | |
| CSP | Camas Prairie R.R., Co. | 7/23-1/80; eliminated 1/90; 1/94 |
| Camas Prairie RailNet, Inc. | 7/2000; added 7/2001 | |
| CSPX | Cities Service Co., Chemicals Group | added 7/77; eliminated 4/78 |
| Cities Service Co. | added 4/78; eliminated 4/79 | |
| Cities Service Co., Chemicals Group | added 4/79; 1/80 | |
| Cities Service Co. | eliminated 7/84 | |
| Chesapeake Specialty Products, Inc. | eliminated 1/97; 7/2000 | |
| CSRX | Cities Service Refining Co. (Cities Service Oil Co. of Pennsylvania) | Apr-38 |
| Conway Scenic R.R. | Jul-00 | |
| CSS | Chicago South Shore & South Bend R.R. | 4/38-10/66 & 1/75-1/80; eliminated 4/90 |
| Chicago SouthShore & South Bend R.R. | added 4/90; 1/94-7/2000 | |
| CSPX | Cities Service Co., Chemicals Group | added 7/77; eliminated 4/78 |
| CSSL | Canada Steamship Lines | 1/75-1/80 |
| CSTX | Canada Starch Co., Ltd. | 4/38-1/80; eliminated 4/81 |
| Canada Starch Co. Inc. | added 4/81; 1/94; eliminated 1/95; 7/2000 | |
| CSUX | City of Colorado Springs, Dept. of Public Utilities | added 7/79; 1/80-1/94 |
| City of Colorado Springs, Dept. of Electric Generation | eliminated 1/99; 7/2000 | |
| CSVX | Commercial Solvents Corp. | 4/38-1/52; eliminated 7/56 |
| Union Tank Car Co. | added 7/56; 10/57-4/70; eliminated 7/73 | |
| CSWX | The Conway Springs Water Co. | Apr-38 |
| Central and South West Services Inc. | added 7/99; 7/2000 | |
| CSX | Central Soya Co., Inc. | Jan-52 |
| Central Transportation Co., Inc. | 10/57-1/80; eliminated 10/88 | |
| CSXE | CSX Transportation, Inc. | 1/94-7/2000 |
| CSXT | CSX Transportation, Inc. | added 10/87; 1/94-7/2000 |
| CSYX | Central Soya Co., Inc. | added 4/97; 7/2000 |
| CT | City of Columbia d/b/a Columbia Terminal | added 1/88; eliminated 7/89; added 1/88; 1/94-7/2000 |
| CTAX | Continental Tank Car Co. | Apr-38 |
| Coast to Coast Leasing, Inc. | added 4/69; 4/70-1/75; eliminated 7/77 | |
| CTCX | California Tank Car Line, Max Schulz, owner | 1/52-4/61 |
| California Tank Car Line | eliminated 7/65 | |
| California Tank Car Line, Inc. | added 7/65; 7/65-1/80; eliminated 4/81 | |
| North American Car Corp. | added 4/81 | |
| General Electric Railcar Services Corp. | eliminated 1/86 | |
| Endasa, S.A. de C.V. | eliminated 4/89; 1/94-7/2000 | |
| CTE | Cen-Tex Rail Link, Ltd. | Jul-00 |
| CTER | The Indiana & Ohio Rail System | added 4/95; eliminated 7/99 |
| CTEX | Canterra Energy, Ltd. | eliminated 4/91 |
| CTEX | PLM International, Inc. | added 4/91; 1/94-7/2000 |
| CTIE | The Kansas City Southern Ry. Co. | 1/94-7/2000 |
| CTIX | Commodity Traders, Inc. | added 4/65; 7/65-1/80; eliminated 7/81 |
| CTLX | Canadian Petroleum Tank Line | Apr-38 |
| California Tank Car Line de Mexico, S.A. | added 4/66; 10/66-1/75; eliminated 7/75 | |
| Equipo Nacional de Arrendamiento, S.A. | added 7/75; eliminated 1/79 | |
| Endasa, S.A. de C.V. | added 1/79; 1/80; eliminated 4/89; 1/94-7/2000 | |
| CTML | Cairo Terminal R.R. Co. | added 10/82; 1/94; eliminated 10/98; 7/2000 |
| CTN | The Canton R.R. | 23-Jul |
| CTN | Canton R.R. Co. | 4/38-1/80; eliminated 7/93; 1/94-7/2000 |
| CTNX | Continental Carbon Co. | added 7/96; eliminated 1/99 |
| General Electric Railcar Services Corp. | added 1/99; eliminated 1/2000 | |
| General Electric Rail Services Corp. | added 1/2000; 7/2000 | |
| CTPX | Certain-teed Products Corp. | added 11/73; 1/75 |
| CertainTeed Corp. | 1/80; eliminated 4/86 | |
| Courtesy Corp. | added 7/92; eliminated 10/93; 1/94-7/2000 | |
| CTR | Clinton Terminal R.R. Co. | Jul-00 |
| CTRA | Connecticut Rail Systems, Inc. | added 10/93; eliminated 1/94 |
| CTRN | Central of Tennessee Ry. & Navigation Co. | added 4/93; added 7/93; 1/94-7/2000; eliminated 4/2001 |
| Union Pacific Rd. Co. | added 4/2001 | |
| CTRW | Carlton Trail Ry. Co. | added 4/98; 7/2000 |
| CTRX | Chemical Transit Co. | added 1/53; eliminated 4/55 |
| Continental Turpentine & Rosin Corp. | 10/57-10/66; eliminated 4/67 | |
| C&T Refinery, Inc. | 1/94; eliminated 1/2000 | |
| C&T Refinery, LLC | added 1/2000; 7/2000 | |
| CT&S | Cairo, Truman & Southern R.R. Co. | 23-Jul |
| CTSE | Chicago, Terre Haute & Southeastern Ry. | 4/38-7/65 |
| Chicago, Terre Haute and Southeastern Ry. Co. (Chicago, Milwaukee, St. Paul and Pacific R.R. Co.) | Oct-66 | |
| CTSX | Coordinated Transportation Systems, Inc. | added 7/56; 10/57; eliminated 1/58 |
| Chem Comp Systems, Inc. d/b/a CTS Cement Manufacturing, Inc.) | Jan-94 | |
| Chem Comp Systems, Inc. | added 1/97; eliminateed 4/97 | |
| Chem Comp Systems, Inc. d/b/a CTS Cement Manufacturing, Inc.) | Jul-00 | |
| CTTX | Canton Tank Car Co. | Apr-38 |
| Trailer Train Co. | added 4/61; 4/61-7/65 | |
| Trailer Train Co. (FC flat cars equipped with container adapters, trailer hitches and bridge plates) | 10/66-1/75 | |
| Trailer Train Co. | added 4/76 | |
| Trailer Train Co. (flat cars equipped with coverless enclosed tri-level auto racks furnished by participant railroads) | 1/80; eliminated 1/92 | |
| TTX Co. (flat cars equipped with coverless enclosed tri-level auto racks furnished by participant railroads) | added 1/92; 1/94-7/2000 | |
| CTVX | The Cleveland Terminal & Valley Ry., Inc. | Jul-00 |
| CTX | Caterpillar Tractor Co. | 1/52; eliminated 1/53 |
| CUDX | Cudahy Car Lines | Apr-38 |
| CUEX | Colorado-Ute Electric Association, Inc. | added 10/84; eliminated 1/85; 1/94-7/2000 |
| CUMX | Cuero Cotton Oil & Mfg. Co. | 1/52-7/65; eliminated 1/66 |
| CUNX | R.F. Cunningham & Co., Inc. | added 4/91; 1/94; eliminated 10/95 |
| CUOH | The Columbus & Ohio River Rail Road Co. | added 7/92; 1/94-7/2000 |
| CSPX | Cities Service Co., Chemicals Group | added 7/77; eliminated 4/78 |
| CURB | Curtis Bay R.R. Co. | 1/75-1/80 |
| CUST | Chicago Union Station Co. | 1/75-7/2000 |
| CUSX | Custom Car Service Corp. | added 7/59; 4/61-4/70 |
| E.L. Bride Co. | eliminated 1/75 | |
| CUVA | The Cuyahoga Valley Ry. Co. | 1/75-7/2000 |
| CV | Central Vermont Ry., Inc. | 1/52-1/94; eliminated 4/95 |
| Grand Trunk Western R.R., Inc. | added 4/95; 7/2000 | |
| CVAR | Cedar Valley R.R. Co. | added 4/85; eliminated 1/92 |
| CVC | Central Vermont Ry., Inc. | 1/75-1/80; eliminated 4/84 |
| Canadian National Rys. | added 4/84; 1/94-7/2000 | |
| CVDO | Chicago, Central & Pacific R.R. Co. | Jan-94 |
| CVOX | Co-op. Vegetable Oils Ltd. | added 7/58; 4/61-4/70; eliminated 1/71 |
| CVQ | Central Vermont Ry., Inc. | 1/94; eliminated 4/95 |
| Grand Trunk Western R.R., Inc. | added 4/95; added 7/95; 7/2000 | |
| CVR | Cimarron Valley R.R. L.C. | Jul-00 |
| CVRX | Locomotive & Tower Preservation Fund, Ltd. | Jul-00 |
| CVSR | Chippewa River R.R. Co. | added 7/80; eliminated 7/81 |
| CVX | A.P. Callagan & Co. | Apr-38 |
| CW | Colorado & Wyoming Ry. Co. | 1/75-7/2000 |
| CWBX | C.W. Brooks, Inc. | added 7/93; 1/94-7/2000 |
| C&WC | Charleston & Western Carolina Ry. Co. | 23-Jul |
| Charleston & Western Carolina R.R. | 4/38-7/65 | |
| Charleston & Western Carolina Ry. Co. (Atlantic Coast Line R.R. Co.) | Oct-66 | |
| CWC | Seaboard Coast Line R.R. Co. (Charleston & Western Carolina) | 1/75-1/80 |
| CWCX | Canandaigua Wine Co., Inc. | added 10/82; 1/94-7/2000 |
| CWCY | Caldwell County R.R. Co. | Jul-00 |
| CW&E | Chatham, Wallaceburg & Lake Erie Ry. Co. | 23-Jul |
| CWE | Chicago & Illinois Midland Ry. Co. | added 4/79; eliminated 7/79 |
| CWEX | Commonwealth Edison Co. | 4/38-7/65 |
| Commonwealth Edison Co. of Indiana (Wholly owned subsidiary of the Commonwealth Edison Co.) | added 1/66 | |
| Commonwealth Edison Co. | 10/66-7/2000; eliminated 10/2000 | |
| Midwest Generation LLC | added 10/2000 | |
| C&WI | Chicago & Western Indiana R.R. Co. | 23-Jul |
| CWI | Chicago & Western Indiana R.R. Co. | 4/38-1/94 |
| CWL | Cornwall R.R. Co. | 23-Jul |
| Cornwall R.R. | 4/38-4/61 | |
| CWMX | Chemical Waste Management, Inc. | added 1/87; 1/94-7/2000 |
| CWP | Chicago, West Pullman & Southern R.R. | 23-Jul |
| Chicago, West Pullman & Southern R.R. Co. | 4/38-1/94; eliminated 1/98 | |
| Chicago Rail Link | added 1/98; 7/2000 | |
| CWPX | Consolidated Water Power & Paper Co. | Jan-52 |
| CWR | California Western R.R. & Navigation Co. | 4/38-1/52 |
| California Western R.R., Inc. | 10/57-1/94; eliminated 1/97 | |
| CWRR, Inc. | added 1/97; eliminated 4/98 | |
| CWR Inc. | added 4/98; 7/2000 | |
| CWRC | Central Wisconsin R.R. Co. | added 4/81; eliminated 4/85 |
| CWRL | Central Western Ry. Corp. | 1/94-7/2000 |
| CWRY | Commonwealth Ry., Inc. | added 1/90; 1/94-7/2000 |
| CWSX | Department of the Army, Office of the Chief of Transportation, Movements Division, Tank Car Section | Jan-52 |
| Consolidation Western Steel Division, United States Steel Corp. | eliminated 7/64 | |
| American Bridge Division United States Steel Corp. | added 7/64; 7/65-1/80; eliminated 10/81 | |
| USS Fabrication Division United States Steel Corp. | added 10/81; eliminated 1/87 | |
| USS-Posco Industries | added 1/87; eliminated 4/90 | |
| CWTX | Central West Refrigerator Despatch Co. | added 4/55; 10/57; eliminated 7/59 |
| Chicago Freight Car Leasing Co. | added 7/59; 4/61-1/75; eliminated 4/78 | |
| Chem West Industries, Inc. | added 4/81 | |
| Chemwest Industries, Inc. | eliminated 4/92 | |
| ChemWest Industries, Inc. | 1/94-7/2000 | |
| CWX | Crystal Springs Water Co., Inc. | 1/52-10/57; eliminated 10/58 |
| CX | Colorado Southern (Burlington Refrigerator Express) | Apr-38 |
| CX | Burlington Refrigerator Express Co. | 1/52-10/57; eliminated 1/59 |
| CXIX | Chemical Exchange Co., Inc. | added 10/80; eliminated 1/81 |
| Chemical Exchange Industries, Inc. | added 1/81; eliminated 7/92 | |
| CYCX | Conley Tank Car Co. (Pennsylvania-Conley Tank Line, a Division of General American Transportation Corp.) | Apr-38 |
| General American Transportation Corp. | 1/52-10/57; eliminated 7/58 | |
| Cyanamid of Canada Ltd. | added 7/58; 4/61-1/80; eliminated 10/81 | |
| CYCY | Crystal City R.R., Inc. | 1/94-7/2000 |
| CYDX | Northbrook Corp. | Jan-94 |
| Conrad Yelvington Distributors, Inc. | Jul-00 | |
| CYTX | Construcciones Y Trituaraciones, S.A. de C.V. | added 10/94; 7/2000 |
| CYX | American Cyanamid Co. | 4/38-1/80; eliminated 5/83 |
| CSPX | Cities Service Co., Chemicals Group | added 7/77; eliminated 4/78 |
| CZ | Coahuila & Zacetecas Ry. | 1/75-1/80 |
| CZCX | Gaylord Container Division, Crown Zellerbach Corp. | added 7/60; eliminated 10/60 |
| Crown Zellerbach Corp. | added 10/60; 4/61-1/80; eliminated 5/83; 1/94-7/2000 |