| 1 | NAFX | General Electric Rail Services Corp. | added 1/2000; 7/2000-7/2005 | | NAKINA |
| 2 | NAFX | General Electric Railcar Services Corp. | added 1/1984; 1/1994; eliminated 1/2000 | | NAKINA |
| 3 | NAFX | North American Car Corp. | added 1/1959; 4/1961-1/1980; eliminated 1/1984 | | NAKINA |
| 4 | NAFX | North American Car Corp. | added 1/59; 4/61-1/80 | | NRHS |
| 5 | NAFX | General Electric Railcar Services Corp. | 1/94; eliminated 1/2000 | | NRHS |
| 6 | NAFX | General Electric Rail Services Corp. | added 1/2000; 7/2000 | | NRHS |
| 7 | NAFX | (NATX) GENERAL ELECTRIC RAIL SERVICES CORPORATION | | | PWRC |
| 8 | NAFX | GE Rail Services | | | RSRV |
| 9 | NAFX | GENERAL ELECTRIC RAILCAR SERVICES C | | | SCAC4 |