| 1 | RCP | Aerocorp, S.A. de C.V. | Callsign: Aerocorpsa, | MEX | AVCODES |
| 2 | RCP | Aerocorp | | | ICAO1 |
| 3 | RCPA | RECOLECTORA DE CARTON Y PAPEL | | | SCAC4 |
| 4 | RCPE | RED CARPET EXPRESS INC | | | SCAC3 |
| 5 | RCPI | R C TRANSPORTATION INC | | | SCAC3 |
| 6 | RCPM | R E C PETES | | | SCAC3 |
| 7 | RCPM | RCP TRUCKING | | | SCAC4 |
| 8 | RCPN | RICH-CO TRANSPORTATION | | | SCAC3 |
| 9 | RCPP | RESCRAFT PLASTIC PRODUCTS | | | SCAC4 |
| 10 | RCPQ | RENVILLE COUNTY CO-OP | | | SCAC3 |
| 11 | RCPR | RCP REMOVAL CO LTD | | | SCAC3 |
| 12 | RCPS | RED CARPET MOTOR COACH | | | SCAC3 |
| 13 | RCPX | SC Rail Leasing America, Inc. d/b/a Southern Illinois Railcar Co. | added 1/2008 | | NAKINA |
| 14 | RCPX | Southern Illinois Railcar Co. | added 10/2000; eliminated 10/2004; 7/2005 (not listed); eliminated 1/2008 | | NAKINA |
| 15 | RCPX | Railcar, Ltd. | added 7/1997; 7/2000; eliminated 10/2000 | | NAKINA |
| 16 | RCPX | Railcar, Ltd. | added 7/97; 7/2000; eliminated 10/2000 | | NRHS |
| 17 | RCPX | Southern Illinois Railcar Co. | added 10/2000 | | NRHS |
| 18 | RCPX | SC RAIL LEASING AMERICA, INC. D/B/A SOUTHERN ILLINOIS RAILCAR CO. [RAILCAR LIMITED] | | | PWRC |
| 19 | RCPX | Southern Illinois Railcar | | | RSRV |
