| 3701 | ADUP | ALL CANADIAN COURIER CORPORATION | | | SCAC4 |
| 3702 | ADUR | ANDERSON, CURTIS R & SON TRUCKING | | | SCAC3 |
| 3703 | ADUR | ASIAN DESIGN SOURCING 2007 LTD | | | SCAC4 |
| 3704 | ADUS | ADS BUS | | | SCAC3 |
| 3705 | ADUS | ANDRUS, FRED | | | SCAC4 |
| 3706 | ADUT | ADVENTURE TOURS | | | SCAC3 |
| 3707 | ADUV | AMCO DISTRIBUTION SERVICES INC | | | SCAC4 |
| 3708 | ADV | Advance Air Charters | Callsign: Advance, | CDN | AVCODES |
| 3709 | ADV | Advanced Flight Training Ltd | Callsign: Advanced, | GB | AVCODES |
| 3710 | ADV | Advance Air Charters | | | ICAO1 |
| 3711 | ADVA | ADMIRAL VAN LINES LLC | | | SCAC4 |
| 3712 | ADVB | ADVANCED BUSINESS SERVICES INC | | | SCAC3 |
| 3713 | ADVB | ADVANCED EXPRESS INC | | | SCAC4 |
| 3714 | ADVC | ANDOVER COMPANY L P | | | SCAC3 |
| 3715 | ADVC | ADVANCED CARGO | | | SCAC4 |
| 3716 | ADVD | ADVANCED TRANSPORT INC | | | SCAC3 |
| 3717 | ADVD | ADVANCE LOGISTICS SOLUTIONS INC | | | SCAC4 |
| 3718 | ADVE | ACTION DELIVERIES INC | | | SCAC3 |
| 3719 | ADVF | ADVANCE FREIGHT LINES, INC | | | SCAC3 |
| 3720 | ADVF | Advenza Freight | | GB | TRAFFIC |
| 3721 | ADVG | ADVANCED PICKUP & DELIVERY SERVICE | | | SCAC3 |
| 3722 | ADVH | ADVANCE MOVING SERVICE INC (FREIGHT | | | SCAC3 |
| 3723 | ADVH | AUTOTRANSPORTES DE CARGA VALLE HERM | | | SCAC4 |
| 3724 | ADVI | ADVANCED WAREHOUSING & TRANSPORTATI | | | SCAC3 |
| 3725 | ADVI | ADVANCE TRANSPORT INC | | | SCAC4 |
| 3726 | ADVJ | ADVENTURE TRANSPORTATION | | | SCAC3 |
| 3727 | ADVJ | ATELIER DE VERRE CASSANDRE | | | SCAC4 |
| 3728 | ADVK | ADVANCE CARRIERS LTD | | | SCAC3 |
| 3729 | ADVK | ADVANCED TRUCKING | | | SCAC4 |
| 3730 | ADVL | ADVENTURE-LAND TRAVEL INC | | | SCAC3 |
| 3731 | ADVM | ADVANTAGE FULFILLMENT CORP | | | SCAC4 |
| 3732 | ADVN | ADVENTURA INC | | | SCAC4 |
| 3733 | ADVO | ADDISON, WAYNE SERVICES | | | SCAC3 |
| 3734 | ADVO | ADVO TRANSFER | | | SCAC4 |
| 3735 | ADVP | ADVANCED CARGO TRANSPORTATION INC | | | SCAC4 |
| 3736 | ADVQ | AAAAADCO MOVERS INC | | | SCAC4 |
| 3737 | ADVR | ADVANCE AIR FREIGHT INC | | | SCAC3 |
| 3738 | ADVR | ADVANTAGE MOVING & DELIVERY | | | SCAC4 |
| 3739 | ADVS | ADVANCE MOVING & STORAGE | | | SCAC3 |
| 3740 | ADVT | ADVANCE TRANSPORTATION SYSTEMS INC | | | SCAC3 |
| 3741 | ADVU | CKC | | RUS | BIC |
| 3742 | ADVU | ADVU, INC. | | | SCAC3 |
| 3743 | ADVV | AD-VIC FREIGHT CO | | | SCAC3 |
| 3744 | ADVV | ADVANCED PALLETS INC | | | SCAC4 |
| 3745 | ADVX | API Enterprises Inc. | 7/2005 (not listed) | | NAKINA |
| 3746 | ADVX | API ENTERPRISES | | | PWRC |
| 3747 | ADVX | API ENTERPRISES INC | | | SCAC4 |
| 3748 | ADVY | ADVANCED DAIRY SYSTEMS LIMITED | | | SCAC4 |
| 3749 | ADW | ADC Airways | | RL | AVCODES |
| 3750 | ADW | Air Andaman Corporation Limited | Callsign: Air Andaman, | T | AVCODES |
| 3751 | ADW | Air Andaman | | | ICAO1 |
| 3752 | ADWA | ADAMS, W A COMPANY INC | | | SCAC3 |
| 3753 | ADWC | ADMIRAL WAREHOUSE COMPANY | | | SCAC3 |
| 3754 | ADWE | ADVANCED WIRE DIE LIMITED | | | SCAC4 |
| 3755 | ADWF | ARDWIN FREIGHT | | | SCAC3 |
| 3756 | ADWF | ARDWIN FREIGHT | | | SCAC4 |
| 3757 | ADWG | AMWARE DISTRIBUTION WAREHOUSES OF G | | | SCAC4 |
| 3758 | ADWI | ADW INC | | | SCAC3 |
| 3759 | ADWL | ANDERSON, WILLIE L | | | SCAC3 |
| 3760 | ADWL | ADCOM WORLDWIDE | | | SCAC4 |
| 3761 | ADWM | ANDREWS TRUCKING INC | | | SCAC3 |
| 3762 | ADWO | ANDREW COUNTY OIL INC | | | SCAC4 |
| 3763 | ADWS | ANDREWS TRUCKING | | | SCAC3 |
| 3764 | ADWT | ANDREWS TRUCKING | | | SCAC3 |
| 3765 | ADWU | AKER DRILLING AS | | | SCAC3 |
| 3766 | ADWV | ANDREWS CREW SERVICE | | | SCAC3 |
| 3767 | ADWW | ANDREWS TRANSPORT INC | | | SCAC3 |
| 3768 | ADWW | ANDREWS TRANSPORT LP | | | SCAC4 |
| 3769 | ADWZ | ADVANCE WARNING | | | PWRC |
| 3770 | ADX | Anderson Aviation, Inc. | Callsign: Andax, | USA | AVCODES |
| 3771 | ADX | Anderson Aviation | | | ICAO1 |
| 3772 | ADX | Abbotts Dairies, Inc. | 7/1935-1/1950; 1/1952 (not listed) | | NAKINA |
| 3773 | ADX | Ak-Sar-Ben Despatch, series 3000-3099 (Midwest Despatch Car Co.) | 7/1923 | | NAKINA |
| 3774 | ADX | Ak-Sar-Ben Despatch, series 3000-3199 (Midwest Despatch Car Co.) | 8/1920 | | NAKINA |
| 3775 | ADX | Abbotts Dairies, Inc. | 4/38-1/52 | | NRHS |
| 3776 | ADX | *AK-SAR-BEN DESPATCH (MIDWEST DESPATCH CAR CO.) | | | PWRC |
| 3777 | ADX | *ABBOTTS DARIES INC. | | | PWRC |
| 3778 | ADXB | AMISTAD TRANSPORT INC | | | SCAC4 |
| 3779 | ADXC | AIR DATA EXPRESS INC | | | SCAC3 |
| 3780 | ADXC | ADDEX INC | | | SCAC4 |
| 3781 | ADXD | AIR-LAND EXPEDITE INC | | | SCAC4 |
| 3782 | ADXE | ADLUXE COMPANY LIMITED | | | SCAC3 |
| 3783 | ADXE | A D EXPRESS | | | SCAC4 |
| 3784 | ADXI | ADAMS MOTOR EXPRESS INC | | | SCAC3 |
| 3785 | ADXI | ADAMS MOTOR EXPRESS INC | | | SCAC4 |
| 3786 | ADXM | ADAMS MOVING | | | SCAC3 |
| 3787 | ADXN | ADVENTURE EXPRESS INC | | | SCAC3 |
| 3788 | ADXP | ADCOM EXPRESS INC | | | SCAC4 |
| 3789 | ADXQ | A & D EXPRESS COMPANY | | | SCAC3 |
| 3790 | ADXQ | AMERICAN LAND TRANSPORT CORP INC | | | SCAC4 |
| 3791 | ADXR | A D TRANSPORT EXPRESS INC | | | SCAC3 |
| 3792 | ADXR | A D TRANSPORT EXPRESS INC | | | SCAC4 |
| 3793 | ADXS | ADRIANA EXPRESS | | | SCAC3 |
| 3794 | ADXT | AMERICOLD LOGISTICS LLC | | | SCAC4 |
| 3795 | ADXU | APPLIED CRYO TECHNOLOGIES | | USA | BIC |
| 3796 | ADXU | Applied Cryo Technologies | | | RSRV |
| 3797 | ADXY | ALLIED TEXTILE & REFUSE INC | | | SCAC4 |
| 3798 | ADY | Aerodyne | Callsign: Aerodyne, | USA | AVCODES |
| 3799 | ADY | Air Arabia Abu Dhabi | IATA: 3L, Callsign: Nawras, IATA Prefix: 049, AOC granted 23 April 2020. | UAE | AVCODES |
| 3800 | ADY | Aerodyne | | | ICAO1 |
