| 2801 | KLDB | K & L DISTRIBUTORS INC | | | SCAC4 |
| 2802 | KLDI | K L D COMPANY INC | | | SCAC3 |
| 2803 | KLDK | KLEIN, DOYLE TRUCKING | | | SCAC4 |
| 2804 | KLDN | KILDARE NAVIGATION S A | | | SCAC4 |
| 2805 | KLDO | KALDO EXPRESS INC | | | SCAC4 |
| 2806 | KLDS | KLAMATH DISPOSAL INC | | | SCAC3 |
| 2807 | KLDT | KELDORN TRUCKING | | | SCAC3 |
| 2808 | KLDU | KALKEDON INTERNATIONAL TRANSPORT & TRADE LTD | | TR | BIC |
| 2809 | KLDV | KENLINE DISTRIBUTION SERVICES LTD | | | SCAC4 |
| 2810 | KLE | Rusaero, Center For Civil Aviation Services | | RUS | AVCODES |
| 2811 | KLE | Rusaero | | | ICAO1 |
| 2812 | KLE | Fa. Klefenz GmbH, Gleisbau, Tief- und Straßenbau | | DE | VKM |
| 2813 | KLED | KELLEY, ED TRUCKING | | | SCAC3 |
| 2814 | KLEE | KILLEEN TRUCKING INC | | | SCAC3 |
| 2815 | KLEG | K-LEE TRUCK LEASING | | | SCAC3 |
| 2816 | KLEI | KELLEYS TRANSPORTATION INC | | | SCAC3 |
| 2817 | KLEJ | KLEINJAN BROS | | | SCAC3 |
| 2818 | KLEL | KALEELS EXPRESS, INC | | | SCAC3 |
| 2819 | KLEL | KEHLER, DAVE | | | SCAC4 |
| 2820 | KLEM | K-LINE EXPRESS | | | SCAC3 |
| 2821 | KLEM | KLEIMAR LTD | | | SCAC4 |
| 2822 | KLENK | Klenk Gleis und Tiefbau GmbH & Co KG | | DE | VKM |
| 2823 | KLEO | KLENSKE BROTHERS TRUCKING | | | SCAC3 |
| 2824 | KLEQ | KLEMM TANK LINES | | | SCAC3 |
| 2825 | KLEQ | KLEMM TANK LINES | | | SCAC4 |
| 2826 | KLES | KLEINSMITH TRUCKING | | | SCAC3 |
| 2827 | KLET | KLEYSEN TRANSPORT LTD | | | SCAC3 |
| 2828 | KLET | KLEYSEN GROUP LP | | | SCAC4 |
| 2829 | KLEV | KLEVELANDS TOWING SERVICE | | | SCAC3 |
| 2830 | KLEX | Kleysen Transport Ltd. | 7/2005 (not listed) | | NAKINA |
| 2831 | KLEX | *KLEYSEN TRANSPORT LTD. | | | PWRC |
| 2832 | KLEX | +KAYWAY INDUSTRIES INC. | | | PWRC |
| 2833 | KLEX | KAYWAY INDUSTRIES INC | | | SCAC4 |
| 2834 | KLEY | KELLEYTOWN TRANSPORTATION INC | | | SCAC4 |
| 2835 | KLEY | Kley\'s Baumaschinen | | DE | VKM |
| 2836 | KLFL | KELLY FUELS INC | | | SCAC4 |
| 2837 | KLFM | K & L FREIGHT | | | SCAC4 |
| 2838 | KLFS | KELLY FREIGHT SERVICES, INC | | | SCAC3 |
| 2839 | KLFS | KELLY FREIGHT SERVICES INC | | | SCAC4 |
| 2840 | KLFT | KELLER, FRED B TRUCKING | | | SCAC3 |
| 2841 | KLFT | K & L EXPRESS LLC | | | SCAC4 |
| 2842 | KLFU | KAWASAKI KISEN KAISHA LTD - K LINE | | J | BIC |
| 2843 | KLFU | "K" Line | | | SCAC2 |
| 2844 | KLFU | KAWASAKI KISEN KAISHA LTD | | | SCAC4 |
| 2845 | KLG | Karlog Air A/S | Callsign: Karlog, | DK | AVCODES |
| 2846 | KLG | Karlog Air Charter | | | ICAO1 |
| 2847 | KLGA | KLOKKENGA, LELAND N | | | SCAC3 |
| 2848 | KLGC | K LINE LOGISTICS LLC | | | SCAC4 |
| 2849 | KLGD | KIMBALL, LLOYD G | | | SCAC4 |
| 2850 | KLGE | KLG EXPRESS LLC | | | SCAC4 |
| 2851 | KLGN | KERRY LOGISTICS INC | | | SCAC4 |
| 2852 | KLGO | KILGO TRUCKING INC | | | SCAC3 |
| 2853 | KLGQ | KITCHENS, L G TRANSPORTATION INC | | | SCAC3 |
| 2854 | KLGT | KELLOGG TRANSFER | | | SCAC3 |
| 2855 | KLGX | Alan Kelling/KLGX | added 10/1987; eliminated 1/1989 | | NAKINA |
| 2856 | KLGX | Alan Kelling/KLGX | added 10/87; eliminated 1/89 | | NRHS |
| 2857 | KLGX | ALAN KELLING/KLGX | | | PWRC |
| 2858 | KLH | KLM Helicopter N.V. | Callsign: KLM Heli, | NL | AVCODES |
| 2859 | KLH | KLM Helicopter | | | ICAO1 |
| 2860 | KLH | v. Kintzel & Lauser GmbH & Co.K | | DE | VKM |
| 2861 | KLHC | KELLEHER CORPORATION | | | SCAC4 |
| 2862 | KLHD | KOLEHOUSE, DONALD | | | SCAC3 |
| 2863 | KLHG | KROPIUS LIVESTOCK HAULING | | | SCAC4 |
| 2864 | KLHR | KLH TRANSPORT | | | SCAC4 |
| 2865 | KLHW | KELLEY, HAROLD W TRUCKING INC | | | SCAC3 |
| 2866 | KLHY | KELSEY-HAYES CO | | | SCAC3 |
| 2867 | KLI | Kolyma-Avia | Callsign: Kolyma, | RUS | AVCODES |
| 2868 | KLIA | KLEIMAR N V | | | SCAC3 |
| 2869 | KLIA | KLEIMAR N V | | | SCAC4 |
| 2870 | KLIB | K-LINES INC | | | SCAC3 |
| 2871 | KLIB | KLEINE, DENIS SCULPTOR | | | SCAC4 |
| 2872 | KLID | KIRKLAND LOWBED INC | | | SCAC4 |
| 2873 | KLIE | K LINE AMERICA INC (KAWASAKI KISEN | | | SCAC4 |
| 2874 | KLIJ | KCOM LINES INC | | | SCAC4 |
| 2875 | KLIK | KLINKENBORG, ELMORE JACK | | | SCAC3 |
| 2876 | KLIL | KASE LOGISTICS INTERNATIONAL LIMITE | | | SCAC4 |
| 2877 | KLIM | K-LIMITED CARRIER LTD | | | SCAC4 |
| 2878 | KLIN | KLIN (SENT IN BY MCCU) | | | SCAC3 |
| 2879 | KLINGF | Gerda Klingenfuß GmbH | | D | TRAFFIC |
| 2880 | KLIQ | KANSAS LOGISTICS INC | | | SCAC4 |
| 2881 | KLIR | KLEIER TRANSPORTATION INC | | | SCAC3 |
| 2882 | KLIS | K LINE PTE LTD | | | SCAC4 |
| 2883 | KLIT | KLINSTIVERS INC | | | SCAC3 |
| 2884 | KLIU | KLINGE CORPORATION | | USA | BIC |
| 2885 | KLIU | Klinge Corporation | | | RSRV |
| 2886 | KLIU | KEYSTONE LEASING INTERNATIONAL LTD | | | SCAC4 |
| 2887 | KLIW | KLINE, W C, INC | | | SCAC3 |
| 2888 | KLIW | KLINE, W C, INC | | | SCAC4 |
| 2889 | KLJ | JSC Verslo Skrydziai t/a KlasJet | Callsign: Class Line, Name changed to JSC KlasJet. | LT | AVCODES |
| 2890 | KLJ | JSC KlasJet | Callsign: Class Line, Name changed from JSC Verslo Skrydziai t/a KlasJet. | LT | AVCODES |
| 2891 | KLJB | KLUG, JOSEPH BERNARD | | | SCAC3 |
| 2892 | KLJC | KASY LOGISTICS (TIANJIN) CO LTD | | | SCAC4 |
| 2893 | KLJT | KELLY, L J TRUCKING | | | SCAC3 |
| 2894 | KLKC | KLINKS CARRIERS LTD | | | SCAC3 |
| 2895 | KLKE | KLENKE FARMS INC | | | SCAC3 |
| 2896 | KLKG | KELSO TRUCKING INC | | | SCAC3 |
| 2897 | KLKH | KOLKHORST PETROLEUM CO INC | | | SCAC4 |
| 2898 | KLKI | K L K LEASING INC | | | SCAC3 |
| 2899 | KLKK | KLOKKENGA BROS | | | SCAC3 |
| 2900 | KLKL | KELLEY KELLEY TRUCKING INC | | | SCAC3 |
