| 1 | ADO | Hokkaido International Airlines Co., Ltd. | IATA: HD, Callsign: Air Do, Name changed to Air Do Co., Ltd. | J | AVCODES |
| 2 | ADO | Air Do Co., Ltd. | IATA: HD, Callsign: Air Do, Name changed from Hokkaido International Airlines Co., Ltd. | J | AVCODES |
| 3 | ADO | Hokkaido International Airlines | IATA: HD | | ICAO1 |
| 4 | ADO | Hokkaido International Airlines / Air Do | | J | TRAFFIC |
| 5 | ADOA | ANDO AMERICAN TRANSPORT CORPORATION | | | SCAC3 |
| 6 | ADOA | A & D RELOCATION INC | | | SCAC4 |
| 7 | ADOC | AMBASSADOR COACH LINES | | | SCAC3 |
| 8 | ADOC | ANTLER DOC | | | SCAC4 |
| 9 | ADOCI | ADOÇIM ÇIMENTO BETON SAN VE TIC. A.Ş. | | TR | VKM |
| 10 | ADOE | ADVANCE COURIER SERVICE | | | SCAC3 |
| 11 | ADOF | ALLIED DOMESTIC FORWARDING INC | | | SCAC3 |
| 12 | ADOH | ANDOVER INDUSTRIES | | | SCAC3 |
| 13 | ADOI | ADONIS TRUCK LINES | | | SCAC3 |
| 14 | ADOI | ADVANCED OFFICE INSTALLERS | | | SCAC4 |
| 15 | ADOJ | A-DOC OIL CO | | | SCAC4 |
| 16 | ADOK | AIRDOCK SYSTEMS | | | SCAC3 |
| 17 | ADOL | AMBASSADOR RELOCATIONS INC | | | SCAC3 |
| 18 | ADOL | AMBASSADOR RELOCATIONS INC | | | SCAC4 |
| 19 | ADOM | ANDERSON MOVING CO | | | SCAC3 |
| 20 | ADOM | ARREDONDO, GREGORIO | | | SCAC4 |
| 21 | ADOO | ARMADORES MARIROSA | | | SCAC3 |
| 22 | ADOP | ANDERSON TRANSPORT | | | SCAC3 |
| 23 | ADOQ | ANDERSON MOVERS INC | | | SCAC3 |
| 24 | ADOQ | ADDCO TRANSPORT INC | | | SCAC4 |
| 25 | ADOR | ANDEE MOTOR CARRIER | | | SCAC3 |
| 26 | ADOR | ALEJANDRE ORTIZ, FERNANDO | | | SCAC4 |
| 27 | ADOS | ADM LOGISTICS INC | | | SCAC4 |
| 28 | ADOT | ANDERSON, C & SON TRUCKING | | | SCAC3 |
| 29 | ADOU | ATELIERS D ORVAL SAS | | | SCAC4 |
| 30 | ADOW | AMA-DOS-TWO (2) TRIPS | | | SCAC3 |
