| 1 | CASO | CP Rail (CASO) | added 7/1985; eliminated 10/1987; 1/1994-7/2005 | | NAKINA |
| 2 | CASO | Consolidated Rail Corp. | added 4/1976; eliminated 4/1977; 1/1980 | | NAKINA |
| 3 | CASO | Penn Central Transportation Co., Robert W. Blanchette, Richard C. Bond and John H. McArthur, Trustees | eliminated 4/1976 | | NAKINA |
| 4 | CASO | Penn Central Transportation Co. (Canada Southern Ry.) | 1/1975 | | NAKINA |
| 5 | CASO | Canada Southern Ry. (New York Central System) | 10/1966 | | NAKINA |
| 6 | CASO | Canada Southern Ry. | 1/1943-7/1965 | | NAKINA |
| 7 | CASO | Canada Southern Ry. | 1/52-7/65 | | NRHS |
| 8 | CASO | Canada Southern Ry. (New York Central System) | Oct-66 | | NRHS |
| 9 | CASO | Penn Central Transportation Co. (Canada Southern Ry.) | Jan-75 | | NRHS |
| 10 | CASO | Penn Central Transportation Co., Robert W. Blanchette, Richard C. Bond and John H. McArthur, Trustees | eliminated 4/76 | | NRHS |
| 11 | CASO | Consolidated Rail Corp. | added 4/76; 1/80 | | NRHS |
| 12 | CASO | *CONSOLIDATED RAIL CORP. [PENN CENTRAL TRANSPORTATION CO.; NEW YORK CENTRAL SYSTEM, CANADIAN SOUTHERN RWY.] | | | PWRC |
| 13 | CASO | +CP RAIL [CANADA SOUTHERN RY] | | | PWRC |
| 14 | CASO | Canada Southern Railway (Canadian Pacific Railway) | | | RSRV |
| 15 | CASO | CP RAIL (CASO) | | | SCAC3 |
| 16 | CASO | CP RAIL (CASO) | | | SCAC4 |
| 17 | CASO | Canada Southern Ry. | | CDN | TRAFFIC |