| 1 | KLI | Kolyma-Avia | Callsign: Kolyma, | RUS | AVCODES |
| 2 | KLIA | KLEIMAR N V | | | SCAC3 |
| 3 | KLIA | KLEIMAR N V | | | SCAC4 |
| 4 | KLIB | K-LINES INC | | | SCAC3 |
| 5 | KLIB | KLEINE, DENIS SCULPTOR | | | SCAC4 |
| 6 | KLID | KIRKLAND LOWBED INC | | | SCAC4 |
| 7 | KLIE | K LINE AMERICA INC (KAWASAKI KISEN | | | SCAC4 |
| 8 | KLIJ | KCOM LINES INC | | | SCAC4 |
| 9 | KLIK | KLINKENBORG, ELMORE JACK | | | SCAC3 |
| 10 | KLIL | KASE LOGISTICS INTERNATIONAL LIMITE | | | SCAC4 |
| 11 | KLIM | K-LIMITED CARRIER LTD | | | SCAC4 |
| 12 | KLIN | KLIN (SENT IN BY MCCU) | | | SCAC3 |
| 13 | KLINGF | Gerda Klingenfuß GmbH | | D | TRAFFIC |
| 14 | KLIQ | KANSAS LOGISTICS INC | | | SCAC4 |
| 15 | KLIR | KLEIER TRANSPORTATION INC | | | SCAC3 |
| 16 | KLIS | K LINE PTE LTD | | | SCAC4 |
| 17 | KLIT | KLINSTIVERS INC | | | SCAC3 |
| 18 | KLIU | KLINGE CORPORATION | | USA | BIC |
| 19 | KLIU | Klinge Corporation | | | RSRV |
| 20 | KLIU | KEYSTONE LEASING INTERNATIONAL LTD | | | SCAC4 |
| 21 | KLIW | KLINE, W C, INC | | | SCAC3 |
| 22 | KLIW | KLINE, W C, INC | | | SCAC4 |
