| 1 | MIT | Flight Line, Inc. | Callsign: Matco, | USA | AVCODES |
| 2 | MIT | Flight Line | | | ICAO1 |
| 3 | MITA | MITCHEK, ALLEN | | | SCAC4 |
| 4 | MITB | M & I TRANSPORTATION INC | | | SCAC4 |
| 5 | MITB | Mitcham Belle | | GB | TRAFFIC |
| 6 | MITC | MISSION TRANSPORT COMPANY | | | SCAC4 |
| 7 | MITH | MITCHELL BROS TRUCK LINE INC | | | SCAC4 |
| 8 | MITI | MARKET TRANSPORT SERVICES - INTRANS | | | SCAC4 |
| 9 | MITK | MITKO & KAPRI TRUCKING INC | | | SCAC4 |
| 10 | MITL | MIDWEST TRANSPORT LOGISTICS LLC | | | SCAC4 |
| 11 | MITL | Majestic Imperator Train de Luxe Waggon Charter GmbH | | AT | VKM |
| 12 | MITM | MICHIGAN TRANSIT MUSEUM | | | PWRC |
| 13 | MITN | MILLER TRANSPORTERS INC | | | SCAC4 |
| 14 | MITO | MILLER TRUCKING CORPORATION | | | SCAC4 |
| 15 | MITP | M I TRANSPORT | | | SCAC4 |
| 16 | MITR | M I T RENTAL LLC | | | SCAC4 |
| 17 | MITR | Mitropa | | D | TRAFFIC |
| 18 | MITRA | Mitrag AG | | CH | VKM |
| 19 | MITRAG | Mitrag AG | | CH | TRAFFIC |
| 20 | MITS | MITSUI STEAMSHIP CO | | | PWRC |
| 21 | MITS | Mitshubishi | | J | TRAFFIC |
| 22 | MITSUI | Mitsui Mining Co., Ltd. | | J | TRAFFIC |
| 23 | MITTENWALD | Mittenwaldbahn | | A | TRAFFIC |
| 24 | MITU | PS SURVEY & CLAIM SERVICES APS | | DK | BIC |
| 25 | MITV | MAGNUM INTERNATIONAL TRANSPORTATION | | | SCAC4 |
| 26 | MITX | Interall Holdings, Inc. | added 10/1960; 4/1961; eliminated 4/1963 | | NAKINA |
| 27 | MITX | Interall Holdings, Inc. | added 10/60; 4/61 | | NRHS |
| 28 | MITX | INTERALL HOLDINGS, INC. | | | PWRC |
