| 1 | KCI | Aeromech Commuter Airlines | Callsign: Aeromech, | USA | AVCODES |
| 2 | KCI | KRAPFS COACHES INC | | | SCAC4 |
| 3 | KCIA | K C I AIRPORT EXPRESS | | | SCAC3 |
| 4 | KCIA | KERSHAW CONTRACTING INC | | | SCAC4 |
| 5 | KCIB | KCI CUSTOMS BROKERS INC | | | SCAC4 |
| 6 | KCIE | KRICK CARRIERS INC | | | SCAC4 |
| 7 | KCIH | KEARNEY COMPANIES INC, THE | | | SCAC4 |
| 8 | KCII | KC INTERNATIONAL INC. | | | SCAC3 |
| 9 | KCII | KC INTERNATIONAL INC. | | | SCAC4 |
| 10 | KCIM | KEY CITY MOVING AND STORAGE | | | SCAC3 |
| 11 | KCIN | KCI INC | | | SCAC3 |
| 12 | KCIN | KEY CURBING INC | | | SCAC4 |
| 13 | KCIO | KUNZLER & CO INC | | | SCAC4 |
| 14 | KCIQ | KL-CHEMPAK INC | | | SCAC4 |
| 15 | KCIR | KCI ROADRUNNER | | | SCAC3 |
| 16 | KCIR | KCI ROADRUNNER | | | SCAC4 |
| 17 | KCIS | KIMBERLY-CLARK INTERGRATED SERVICES | | | SCAC3 |
| 18 | KCIT | KC INDUSTRIES TRUCKING LLC | | | SCAC4 |
| 19 | KCIU | KING CHEONG LOGISTICS LIMITED | | | SCAC4 |
| 20 | KCIX | Nova Chemicals Inc. | added 4/1997; eliminated 7/2000; 7/2000 (not listed) | | NAKINA |
| 21 | KCIX | ARCO Chemical Co. | added 10/1982; 1/1994; eliminated 4/1997 | | NAKINA |
| 22 | KCIX | ARCO Polymers, Inc. | added 10/1979; 1/1980; eliminated 10/1982 | | NAKINA |
| 23 | KCIX | ARCO/Polymers, Inc. | added 10/1974; 1/1975; eliminated 10/1979 | | NAKINA |
| 24 | KCIX | Arco Polymers, Inc. | added 1/1974; eliminated 10/1974 | | NAKINA |
| 25 | KCIX | Sinclair-Koppers Co. | added 4/1966; 10/1966-4/1970; eliminated 1/1974 | | NAKINA |
| 26 | KCIX | Koppers Co., Inc. | added 1/1965; 7/1965; eliminated 4/1966 | | NAKINA |
| 27 | KCIX | Kaiser Steel Corp. | 1/1950 | | NAKINA |
| 28 | KCIX | Kaiser Co., Inc., Iron and Steel Division | 1/1945-4/1947 | | NAKINA |
| 29 | KCIX | Koppers Co., Inc. | added 1/65; 7/65; eliminated 4/66 | | NRHS |
| 30 | KCIX | Sinclair-Koppers Co. | added 4/66; 10/66-4/70 | | NRHS |
| 31 | KCIX | ARCO/Polymers, Inc. | Jan-75 | | NRHS |
| 32 | KCIX | ARCO Polymers, Inc. | 1/80; eliminated 10/82 | | NRHS |
| 33 | KCIX | ARCO Chemical Co. | added 10/82; 1/94; eliminated 4/97 | | NRHS |
| 34 | KCIX | Nova Chemicals Inc. | added 4/97; 7/2000; eliminated 7/2000 | | NRHS |
| 35 | KCIX | *KAISER STEEL CORP. | | | PWRC |
| 36 | KCIX | *SINCLAIR-KOPPERS CO. [KOPPERS CO., INC.] | | | PWRC |
| 37 | KCIX | *ARCO CHEMICAL COMPANY [ARCO POLYMERS] | | | PWRC |
| 38 | KCIX | *NOVA CHEMICALS INCORPORATED | | | PWRC |
| 39 | KCIX | ARCO Chemical (Nova Chemicals) | | | RSRV |
| 40 | KCIX | KOPPERS CO INC | | | SCAC3 |
