| 1 | RKC | Das Airlines | Callsign: Das Congo, | ZRE | AVCODES |
| 2 | RKC | DAS Airlines | | | ICAO1 |
| 3 | RKCC | ROCKET CITY CHARTER SERVICE INC | | | SCAC3 |
| 4 | RKCE | ROCK CREEK EXPRESS INC | | | SCAC3 |
| 5 | RKCG | RUKY INTERNATIONAL COMPANY | | | SCAC4 |
| 6 | RKCL | RIMROCK COLONY | | | SCAC4 |
| 7 | RKCT | ROCK CREEK TRUCKING | | | SCAC4 |
| 8 | RKCW | RAKOWSKI CARTAGE & WRECKING LTD | | | SCAC4 |
| 9 | RKCX | Knox Kershaw, Inc. | added 1/1984; eliminated 4/1985; 1/1994-7/2005 (not listed) | | NAKINA |
| 10 | RKCX | Royce Kershaw Co., Inc. | eliminated 1/1984 | | NAKINA |
| 11 | RKCX | Knox Kershaw Co., Inc. | added 1/1969; 4/1970-1/1980 | | NAKINA |
| 12 | RKCX | Knox Kershaw Co., Inc. | added 1/69; 4/70-1/80; eliminated 4/85; 1/94-7/2000 | | NRHS |
| 13 | RKCX | *KNOX KERSHAW INC (ROYCE KERSHAW CO., INC.) | | | PWRC |
| 14 | RKCX | Knox Kershaw | | | RSRV |
| 15 | RKCX | KNOX KERSHAW INC | | | SCAC4 |
| 16 | RKCY | RANDOLPH PACKING CO | | | SCAC4 |
