| 1 | ADE | Ada Air | IATA: ZY, Callsign: Ada Air, IATA Prefix: 121, Founded in 1991. Ceased operations in 2007. Desigantor ZY recalled by IATA | AL | AVCODES |
| 2 | ADE | Ada Air | IATA: ZY | | ICAO1 |
| 3 | ADE | A.D.E. Eisenbahnverkehrsunternehmen | | D | TRAFFIC |
| 4 | ADEA | ANDREA TRUCKING CO | | | SCAC3 |
| 5 | ADEB | AUDETTES BUS SERVICE | | | SCAC3 |
| 6 | ADEB | A & D ENVIRONMENTAL SERVICES (SC) L | | | SCAC4 |
| 7 | ADEC | ANDERSON, CURTIS | | | SCAC3 |
| 8 | ADED | ANDERSON, DEL TRUCKING CO | | | SCAC3 |
| 9 | ADED | ADEX MARKETING | | | SCAC4 |
| 10 | ADEG | ADVANCED EMISSIONS TECHNOLOGIES LTD | | | SCAC4 |
| 11 | ADEGS | Ade Gas Oil Company SRL | | RO | VKM |
| 12 | ADEI | ADD EXPRESS INC | | | SCAC4 |
| 13 | ADEJ | ACCENT DELIVERRY SERVICE INC | | | SCAC3 |
| 14 | ADEK | A D E CONSOLIDATORS | | | SCAC3 |
| 15 | ADEK | ACCURATE DELIVERY | | | SCAC4 |
| 16 | ADEL | ACE DELIVERY | | | SCAC3 |
| 17 | ADEL | AUTOTRANSPORTES DE LA GARZA SA DE C | | | SCAC4 |
| 18 | ADEL | Adelaide Tram | | AUS | TRAFFIC |
| 19 | ADEM | ANDREWS EAST MOVING & STORAGE CO | | | SCAC3 |
| 20 | ADEN | ALDEN LOGISTICS INC | | | SCAC4 |
| 21 | ADEO | ACME DELIVERY SERVICES | | | SCAC3 |
| 22 | ADEO | ARROW DELIVERY | | | SCAC4 |
| 23 | ADEP | ADVANCE EXPRESS INC | | | SCAC3 |
| 24 | ADEP | ADVANCED ENERGY PRODUCTS | | | SCAC4 |
| 25 | ADEQ | ACCELERATED DELIVERY SERVICE | | | SCAC3 |
| 26 | ADEQ | ALLIED COURIER INC | | | SCAC4 |
| 27 | ADER | ANDERTON, CARL L, | | | SCAC3 |
| 28 | ADES | ANDERSON TRANSFER & STORAGE | | | SCAC3 |
| 29 | ADES | ADDIES OIL LLC | | | SCAC4 |
| 30 | ADET | ANDERSEN TRUCKING | | | SCAC3 |
| 31 | ADET | ALL MODES TRANSPORT INC | | | SCAC4 |
| 32 | ADEY | ACTION DELIVERY | | | SCAC3 |
| 33 | ADEZ | ADDISON ELEVATOR CO. | | | PWRC |
