| 1 | MTH | Massachusetts Institute Of Technology | Callsign: Research, | USA | AVCODES |
| 2 | MTH | Massachusetts Institute of Technology | | | ICAO1 |
| 3 | MTHB | MIKES TRANSPORTATION SERVICE INC | | | SCAC4 |
| 4 | MTHB | Mittelthurgaubahn | | CH | TRAFFIC |
| 5 | MTHB | Verein Historische Mittel-Thurgau-Bahn (MThB) | | CH | VKM |
| 6 | MTHH | MOTHER-EASE INC | | | SCAC4 |
| 7 | MTHI | MASTERS TRANSPORTATION LLC | | | SCAC4 |
| 8 | MTHK | MERCHANTS TRANSPORT OF HICKORY, INC | | | SCAC1 |
| 9 | MTHK | MERCHANTS TRANSPORT OF HICKORY INC | | | SCAC4 |
| 10 | MTHP | MATHESON | | | SCAC4 |
| 11 | MTHR | MARATHON TRANSPORT INC | | | SCAC4 |
| 12 | MTHS | MTS | | | SCAC4 |
| 13 | MTHT | MATHER TRUCKING INC | | | SCAC4 |
| 14 | MTHU | MONGOLIAN ISRAEL JOINT VENTURE | | | SCAC4 |
| 15 | MTHV | MCARTHUR EXPRESS (DIV OF TFI TRANSP | | | SCAC4 |
| 16 | MTHW | MACHINE TRANSPORT INC | | | SCAC4 |
| 17 | MTHY | MIDLAND TECHNOLOGY INC | | | SCAC4 |
