| 2901 | DLGI | DEDICATED LOGISTICAL SERVICE INC | | | SCAC4 |
| 2902 | DLGL | DANS LOGISTICS LLC | | | SCAC4 |
| 2903 | DLGM | DE LEON GARCIA, JESUS | | | SCAC4 |
| 2904 | DLGS | DEFINED LOGISTICS SERVICES LLC | | | SCAC4 |
| 2905 | DLGU | DAILY LOGISTICS GROUP B.V. | | NL | BIC |
| 2906 | DLGV | DEDICATED LOGISTICS SERVICES INC | | | SCAC4 |
| 2907 | DLGX | Lewis Grain Co. | added 7/1977; 1/1980; eliminated 4/1989 | | NAKINA |
| 2908 | DLGX | Lewis Grain Co. | added 7/77; 1/80; eliminated 4/89 | | NRHS |
| 2909 | DLGX | LEWIS GRAIN CO. | | | PWRC |
| 2910 | DLGX | Lewis Grain | | | RSRV |
| 2911 | DLH | Deutsche Lufthansa AG | IATA: LH, Callsign: Lufthansa, IATA Prefix: 220, | D | AVCODES |
| 2912 | DLH | Lufthansa | IATA: LH | | ICAO1 |
| 2913 | DLHA | DALHART CONSUMERS FUEL ASSOCIATION | | | SCAC4 |
| 2914 | DLHBS | Traditionsgemeinschaft 50 3708 e.V | | DE | VKM |
| 2915 | DLHD | DAREON LOGISTICS HK CO LTD | | | SCAC4 |
| 2916 | DLHE | DLH ENTERPRISES & SERVICES INC | | | SCAC4 |
| 2917 | DLHG | DEAL HEATING OIL INC | | | SCAC4 |
| 2918 | DLHM | DE LOS ANGELES HERNANDEZ, MARIA | | | SCAC4 |
| 2919 | DLHO | DULAY HOLDING CARRIER | | | SCAC4 |
| 2920 | DLHT | DT LOGISTICS (HK) LTD | | | SCAC4 |
| 2921 | DLHU | HONGKONG DALIANG MARINE LIMITED | | PRC | BIC |
| 2922 | DLHU | LUFTHANSA (DEUTSCHE LUFTHANSA | | | SCAC3 |
| 2923 | DLHU | LUFTHANSA (DEUTSCHE LUFTHANSA | | | SCAC4 |
| 2924 | DLI | Delta Express International | Ceased operations. | UA | AVCODES |
| 2925 | DLI | Dalia Air | Callsign: Dalia, | MA | AVCODES |
| 2926 | DLI | Delta Express International | | | ICAO1 |
| 2927 | DLI | Die-Lei GmbH | | DE | VKM |
| 2928 | DLIC | DLA TRANSPORT INC | | | SCAC4 |
| 2929 | DLIE | DLS INTERNATIONAL SERVICES LLC | | | SCAC4 |
| 2930 | DLIF | DCT LOGISTICS INC | | | SCAC4 |
| 2931 | DLII | DERAGON LEASING INC | | | SCAC4 |
| 2932 | DLIJ | DNJ LOGISTICS INC | | | SCAC4 |
| 2933 | DLIK | DEPLOYED LOGISTICS INC | | | SCAC4 |
| 2934 | DLIL | DRIVELINE INTERNATIONAL INC | | | SCAC4 |
| 2935 | DLIM | DOWLING LOGISTICS INC | | | SCAC4 |
| 2936 | DLIN | Dollar Line | | USA | TRAFFIC |
| 2937 | DLIO | DEKOR LOGISTICS INC | | | SCAC4 |
| 2938 | DLIP | DOUGLASS LOGISTICS INC | | | SCAC4 |
| 2939 | DLIR | DELTA LINE INTERNATIONAL CORP | | | SCAC4 |
| 2940 | DLIV | D-LOGISTICS INCORPORATED | | | SCAC4 |
| 2941 | DLJ | Dinglong Business Aviation Co., Ltd. | Callsign: Ding Air, | PRC | AVCODES |
| 2942 | DLJJ | D L J & J INC | | | SCAC4 |
| 2943 | DLJS | DELBO, JOSEPH AND SON LLC | | | SCAC4 |
| 2944 | DLK | Deccan Aviation (Lanka) Private Limited | Callsign: Dekkanlanka, | CL | AVCODES |
| 2945 | DLK | Deccan Aviation (Lanka) | | | ICAO1 |
| 2946 | DLKA | DELKA TRUCKING INC | | | SCAC4 |
| 2947 | DLKG | D A L TRUCKING INC | | | SCAC4 |
| 2948 | DLKI | D-LINE TRUCKING INC | | | SCAC4 |
| 2949 | DLKN | DL TRUCKING | | | SCAC4 |
| 2950 | DLKS | D & L TRUCK SUPPLY INC | | | SCAC4 |
| 2951 | DLKT | D L K TRUCKING INC | | | SCAC4 |
| 2952 | DLKU | STOLT TANK CONTAINERS LEASING LTD | | BM | BIC |
| 2953 | DLKU | DELTANK LTD | | | PWRC |
| 2954 | DLKU | Deltank | | | RSRV |
| 2955 | DLKU | STOLT TANK CONTAINERS INC | | | SCAC4 |
| 2956 | DLLA | DALLAS TRANSPORT LTD | | | SCAC4 |
| 2957 | DLLC | DRIVEN LLC | | | SCAC4 |
| 2958 | DLLD | DRIVEN LOGISTICS LLC | | | SCAC4 |
| 2959 | DLLE | DURANGO LIVESTOCK LTD | | | SCAC4 |
| 2960 | DLLH | DIVERSIFIED LOGISTICS LLC | | | SCAC4 |
| 2961 | DLLI | DL LOGISTICS INC | | | SCAC4 |
| 2962 | DLLJ | DILLER, JEREMY | | | SCAC4 |
| 2963 | DLLK | DILL TRUCKING INC | | | SCAC4 |
| 2964 | DLLN | D & L LEASING INC | | | SCAC4 |
| 2965 | DLLP | DEDICATED LOGISTICS LLC | | | SCAC4 |
| 2966 | DLLQ | DAKT LOGISTICS LLC | | | SCAC4 |
| 2967 | DLLS | D & L LOGISTICS LLC | | | SCAC4 |
| 2968 | DLLT | DELL TRANSPORT LTD | | | SCAC4 |
| 2969 | DLLW | DIVERSIFIED LOGISTICS LLC | | | SCAC4 |
| 2970 | DLLY | DONNELLEY, R R TRANSPORTATION | | | SCAC4 |
| 2971 | DLM | DLM AG | | CH | VKM |
| 2972 | DLMB | D L MATERIAL & SUPPLY INC | | | SCAC4 |
| 2973 | DLMD | DEL-MED INC | | | SCAC4 |
| 2974 | DLMH | DLM LOGISTICS INC | | | SCAC4 |
| 2975 | DLMJ | DLM TRUCKING LLC | | | SCAC4 |
| 2976 | DLMQ | DA-LEE MOTOR FREIGHT INC | | | SCAC4 |
| 2977 | DLMR | DILMAR OIL COMPANY INC | | | SCAC4 |
| 2978 | DLMS | DALLAS&MAVIS SPECIALIZED CARRIER CO. | | | SCAC1 |
| 2979 | DLMS | DALLAS & MAVIS SPECIALIZED CARRIER | | | SCAC4 |
| 2980 | DLMU | DLM DIENSTLEISTUNGEN & MANAGEMENT GMBH | | D | BIC |
| 2981 | DLMU | DLM DIENSTLEISFUNGEN & MANAGEMENT G | | | SCAC4 |
| 2982 | DLMV | DELAWARE MOVING & STORAGE INC | | | SCAC4 |
| 2983 | DLMW | DELMARVA WAREHOUSES INC | | | SCAC4 |
| 2984 | DLMX | Daylight Locomotives & Machine Works, Inc. | 1/1994-7/2005 (not listed) | | NAKINA |
| 2985 | DLMX | Daylight Locomotives & Machine Works, Inc. | 1/94-7/2000 | | NRHS |
| 2986 | DLMX | DAYLIGHT LOCOMOTIVES & MACHINE WORKS, INC. | | | PWRC |
| 2987 | DLMX | Daylight Locomotives and Machine Works | | | RSRV |
| 2988 | DLMX | DAYLIGHT LOCOMOTIVE, & MACHINE WORK | | | SCAC4 |
| 2989 | DLMX | Daylight Locomotives & Machine Works, Inc. | | USA | TRAFFIC |
| 2990 | DLN | Dalmatian d.o.o. | Callsign: Dalmatian, Ceased trading 24 June 2014. Operations never started. | HR | AVCODES |
| 2991 | DLNC | D & L TRANSPORT LLC | | | SCAC4 |
| 2992 | DLNL | DALEY, NOEL RACING STABLES LLC | | | SCAC4 |
| 2993 | DLNM | DELANEY MOVING AND STORAGE INC | | | SCAC4 |
| 2994 | DLNN | D LINES, INC | | | SCAC1 |
| 2995 | DLNN | D LINES INC | | | SCAC4 |
| 2996 | DLNO | DEKLEYNE, JOHN | | | SCAC4 |
| 2997 | DLNR | DILLNER, W J TRANSFER CO | | | SCAC4 |
| 2998 | DLNT | DILLON TRANSPORTATION LLC | | | SCAC4 |
| 2999 | DLNV | DALNAVE NAVIGATION INC | | | SCAC4 |
| 3000 | DLNW | GREAT WESTERN RAILWAY OF COLORADO [DENVER, LARAMIE AND NORTH WESTERN RAILROAD} | | | PWRC |
