| 1 | KRG | Krimaviamontag | Callsign: Aviamontag, Ceased operations. | UA | AVCODES |
| 2 | KRG | Krimaviamontag | | | ICAO1 |
| 3 | KRGB | KRIGBAUM TRUCKING INC | | | SCAC3 |
| 4 | KRGE | KROGER GRAIN | | | SCAC3 |
| 5 | KRGF | KAY, R G FUEL OIL INC | | | SCAC4 |
| 6 | KRGL | KROGEL AIR FREIGHT SERVICE, INC | | | SCAC3 |
| 7 | KRGN | KIRCHGESSNER TRUCKING | | | SCAC3 |
| 8 | KRGO | KARGO MAX TRAILER ENCLOSURES LTD | | | SCAC4 |
| 9 | KRGP | KARGO TRANSPORTATION INC | | | SCAC4 |
| 10 | KRGR | KRUGER TRUCKING | | | SCAC3 |
| 11 | KRGS | KRINGS TRUCKING | | | SCAC3 |
| 12 | KRGT | KRIEGSMAN TRANSFER CO | | | SCAC3 |
| 13 | KRGU | KYRGYZSTANIAN RAILWAY ADMINISTRATIO | | | SCAC4 |
