| 1 | KMC | Kahama Mining Corporation | Callsign: Kahama, | EAT | AVCODES |
| 2 | KMC | Kahama Mining Corporation | | | ICAO1 |
| 3 | KMCD | KMC TRADING | | | SCAC3 |
| 4 | KMCI | KODIAK MOTOR CARRIER INC | | | SCAC3 |
| 5 | KMCM | K M CONSTRUCTION | | | SCAC4 |
| 6 | KMCO | KEMCO TRUCKING, INC | | | SCAC3 |
| 7 | KMCP | K M C TRANSPORTATION INC | | | SCAC4 |
| 8 | KMCT | KMC TRANSPORT INC | | | SCAC3 |
| 9 | KMCT | K, MICHAEL TRUCKING | | | SCAC4 |
| 10 | KMCU | KMARIN OCEAN LOGISTICS (KOL) | | ROK | BIC |
| 11 | KMCU | MITSUI O.S.K. LINES, LTD | | | PWRC |
| 12 | KMCU | Mitsui O.S.K. Lines | | | RSRV |
| 13 | KMCU | KENNECOTT GREENS CREEK MINING CO | | | SCAC4 |
| 14 | KMCW | KEOJE MARINE CO LTD | | | SCAC4 |
| 15 | KMCX | Kerr-McGee Coal Corp. | added 1/1995; eliminated 7/1998; 7/2000-7/2005 (not listed) | | NAKINA |
| 16 | KMCX | Kerr-McGee Chemical Corp. | reporting marks changed from APMX 1/1971; eliminated 11/1973; added 11/1977; 1/1980; eliminated 4/1993; added 10/1993; 1/1994; eliminated 1/1995 | | NAKINA |
| 17 | KMCX | Knappen Milling Co. | added 7/1964; 7/1965-10/1966; eliminated 7/1968 | | NAKINA |
| 18 | KMCX | Knappen Milling Co. | added 7/64; 7/65-10/66; eliminated 7/68 | | NRHS |
| 19 | KMCX | Kerr-McGee Chemical Corp. | reporting marks changed from APMX 1/71; eliminated 11/73; 1/80; eliminated 4/93; added 10/93; 1/94; eliminated 1/95 | | NRHS |
| 20 | KMCX | Kerr-McGee Coal Corp. | added 1/95; eliminated 7/98; 7/2000 | | NRHS |
| 21 | KMCX | *KNAPPEN MILLING CO. | | | PWRC |
| 22 | KMCX | +KERR-MCGEE COAL CORPORATION | | | PWRC |
| 23 | KMCX | Kerr-Mcgee Coal Corporation | | | RSRV |
| 24 | KMCX | KNAPPEN MILLING CO | | | SCAC3 |
| 25 | KMCZ | KELLERMEYER COMPANY | | | PWRC |
