| 1 | KCL | Jubilee Airways Ltd. | Callsign: Losalt, ICAO callsign changed to Tartan | GB | AVCODES |
| 2 | KCL | Jubilee Airways Ltd. | Callsign: Tartan, ICAO callsign changed from Losalt | GB | AVCODES |
| 3 | KCL | KUBE CON logistics GmbH | | DE | VKM |
| 4 | KCLA | K & C LOGISTICS INC | | | SCAC4 |
| 5 | KCLD | K C LOCAL DELIVERY INC | | | SCAC3 |
| 6 | KCLD | KASE CONTAINER LINE LTD | | | SCAC4 |
| 7 | KCLG | KITCHENS, L G | | | SCAC3 |
| 8 | KCLH | KINGDOM COACH LLC | | | SCAC4 |
| 9 | KCLI | K & C LOGISTICS LLC | | | SCAC4 |
| 10 | KCLL | KINGSMEN COACH LINE LLC | | | SCAC4 |
| 11 | KCLO | K-C LOGISTICS CO | | | SCAC4 |
| 12 | KCLQ | KINSELLA, CLAUDE | | | SCAC3 |
| 13 | KCLU | JIANGSU KTK LOCOMOTIVE & ROLLING STOCK CO.,LTD | | PRC | BIC |
| 14 | KCLV | K C LIVESTOCK | | | SCAC4 |
| 15 | KCLX | Kansas City Power & Light Co. | added 4/1971; 1/1975-1/1994; eliminated 7/1997; 7/2000-7/2005 (not listed) | | NAKINA |
| 16 | KCLX | Kansas City Power & Light Co. | added 4/71; 1/75-1/94; eliminated 7/97; 7/2000 | | NRHS |
| 17 | KCLX | KANSAS CITY LIGHT & POWER CO. | | | PWRC |
| 18 | KCLX | Kansas City Power and Light | | | RSRV |
| 19 | KCLX | KANSAS CITY POWER & LIGHT CO. | | | SCAC4 |
| 20 | KCLX | Kansas City Power & Light Co. | | USA | TRAFFIC |
