| 1 | AHT | HTA Helicopteros, Lda | Callsign: Heliapra, | P | AVCODES |
| 2 | AHT | HTA Helicopteros | | | ICAO1 |
| 3 | AHT | Alaska Hydro-Train | 1/1980-1/1985 | | NAKINA |
| 4 | AHT | Alaska Hydro-Train | Jan-80 | | NRHS |
| 5 | AHT | RETIRED 11-08-93 ATP (039) [ALASKA HYDRO TRAIN] | | | PWRC |
| 6 | AHT | Alaska Hydro-Train | | | RSRV |
| 7 | AHTA | ALPHA TRANSPORT | | | SCAC4 |
| 8 | AHTB | A & H TOUR SERVICE | | | SCAC3 |
| 9 | AHTC | AMHURST TANKER CORPORATION | | | SCAC3 |
| 10 | AHTC | A & H TRUCKING | | | SCAC4 |
| 11 | AHTD | ASPHALT TRADER COMPANY LTD | | | SCAC4 |
| 12 | AHTG | ASHURST TRUCKING, EL CENTRO CA | | | SCAC3 |
| 13 | AHTG | ANDERSON HARVESTING & TRUCKING LLC | | | SCAC4 |
| 14 | AHTH | A & H TRUCKING | | | SCAC4 |
| 15 | AHTI | A & H TRANSPORT INC | | | SCAC3 |
| 16 | AHTI | AUTHORITY TRANSPORTATION INC | | | SCAC4 |
| 17 | AHTJ | Århus - Hammel - Thorsø Jernbane (Hammelbanen) | 1914 - 1956 | DK | jernbanen.dk |
| 18 | AHTJ | Århus - Hammel - Thorsø Jernbane (Hammelbanen) | 1914 - 1956 | DK | TRAFFIC |
| 19 | AHTK | A & H TRUCKING INC | | | SCAC3 |
| 20 | AHTK | ASH TRUCKING INC | | | SCAC4 |
| 21 | AHTL | A. & H. TRUCK LINE, INC. | | | PWRC |
| 22 | AHTL | A & H TRUCK LINE, INC. | | | SCAC3 |
| 23 | AHTM | AMERICAN HORSE TRANSPORTATION LLC | | | SCAC4 |
| 24 | AHTN | ARROWHEAD TRANSPORTATION | | | SCAC3 |
| 25 | AHTO | ANAHEIM TRUCK & TRANSFER CO | | | SCAC3 |
| 26 | AHTQ | ALTUS HOLLIIS TRANSPORT CO INC | | | SCAC3 |
| 27 | AHTQ | A & H TRANSPORT INC | | | SCAC4 |
| 28 | AHTR | A & H TRANSPORT | | | SCAC4 |
| 29 | AHTS | ANCHOR TRUCKING SERVICE INC | | | SCAC3 |
| 30 | AHTS | ALPHA TRUSS | | | SCAC4 |
| 31 | AHTT | ALLEN, H T TRUCKING INC | | | SCAC4 |
| 32 | AHTU | AFRICAN LINER SERVICE, INC. | | | SCAC3 |
| 33 | AHTV | AMERICAN HERITAGE TRAVEL INC | | | SCAC3 |
| 34 | AHTV | ASAP TRANSPORT AND TOWING LLC | | | SCAC4 |
| 35 | AHTW | AMERICAN HERITAGE TRAILS LLC | | | SCAC4 |
