| 1 | KLG | Karlog Air A/S | Callsign: Karlog, | DK | AVCODES |
| 2 | KLG | Karlog Air Charter | | | ICAO1 |
| 3 | KLGA | KLOKKENGA, LELAND N | | | SCAC3 |
| 4 | KLGC | K LINE LOGISTICS LLC | | | SCAC4 |
| 5 | KLGD | KIMBALL, LLOYD G | | | SCAC4 |
| 6 | KLGE | KLG EXPRESS LLC | | | SCAC4 |
| 7 | KLGN | KERRY LOGISTICS INC | | | SCAC4 |
| 8 | KLGO | KILGO TRUCKING INC | | | SCAC3 |
| 9 | KLGQ | KITCHENS, L G TRANSPORTATION INC | | | SCAC3 |
| 10 | KLGT | KELLOGG TRANSFER | | | SCAC3 |
| 11 | KLGX | Alan Kelling/KLGX | added 10/1987; eliminated 1/1989 | | NAKINA |
| 12 | KLGX | Alan Kelling/KLGX | added 10/87; eliminated 1/89 | | NRHS |
| 13 | KLGX | ALAN KELLING/KLGX | | | PWRC |
