| 1 | KLN | Kaliningrad Air Enterprise | Callsign: Kaliningrad Air, | RUS | AVCODES |
| 2 | KLNA | K-LINE TRANSIT | | | SCAC3 |
| 3 | KLNA | K-LINE TRANSPORTATION INC | | | SCAC4 |
| 4 | KLNC | K-LINE INC | | | SCAC3 |
| 5 | KLNC | KLASSEN CONSTRUCTION | | | SCAC4 |
| 6 | KLND | KLN STEEL PRODUCTS COMPANY | | | SCAC3 |
| 7 | KLNE | KLINE, H. O | | | SCAC3 |
| 8 | KLNG | KLINGSHIRN & SONS TRUCKING INC | | | SCAC4 |
| 9 | KLNI | K LINES INC | | | SCAC3 |
| 10 | KLNI | K LINES INC | | | SCAC4 |
| 11 | KLNK | KLINK, FAY V AND BARBARA L KLINK | | | SCAC3 |
| 12 | KLNL | KLEINS LOGGING INC | | | SCAC3 |
| 13 | KLNL | KLN CONTAINER LINE LIMITED | | | SCAC4 |
| 14 | KLNM | KILIAN MANUFACTURING CORPORATION | | | SCAC4 |
| 15 | KLNP | KELLEY, NIP EQUIPMENT CO INC | | | SCAC3 |
| 16 | KLNQ | KILIAN CORPORATION, THE | | | SCAC3 |
| 17 | KLNR | KELTNER, RUSSELL | | | SCAC3 |
| 18 | KLNR | K LINE TRANSPORTATION INC (REFRIGER | | | SCAC4 |
| 19 | KLNS | K LINE LNG SHIPPING (UK) LTD | | | SCAC4 |
| 20 | KLNT | KEELAN TRUCKING COMPANY | | | SCAC3 |
| 21 | KLNT | K-LINE TRAILERS LTD | | | SCAC4 |
| 22 | KLNU | KART (THAILAND) LIMITED | | T | BIC |
| 23 | KLNV | KLINE, VERNON L | | | SCAC3 |
