| 1 | MWT | Midwest Aviation Division, Inc. | Callsign: Midwest, | USA | AVCODES |
| 2 | MWT | Midwest Aviation Division | | | ICAO1 |
| 3 | MWTB | M & W TRANSPORT LLC | | | SCAC4 |
| 4 | MWTC | M & W TRANSPORTATION CO | | | SCAC4 |
| 5 | MWTE | MORWIN ENTERPRISES LTD | | | SCAC4 |
| 6 | MWTF | MY WAY TRANSPORTATION | | | SCAC4 |
| 7 | MWTG | MIDWEST TRUCKING TRANSPORT INC | | | SCAC4 |
| 8 | MWTI | MAJEWSKI TRANSPORTATION INC | | | SCAC4 |
| 9 | MWTK | M W TRUCKING INC | | | SCAC4 |
| 10 | MWTL | MOUNTAIN WEST TRANSPORTATION LLC | | | SCAC4 |
| 11 | MWTN | MIDWEST TRANSPORT | | | SCAC4 |
| 12 | MWTQ | M & W TRUCKING | | | SCAC4 |
| 13 | MWTS | MIDWEST TRANSIT SERVICE, INC | | | SCAC1 |
| 14 | MWTS | MIDWEST TRANSIT LLC | | | SCAC4 |
| 15 | MWTT | Michigan-Wisconsin Transportation Co. | added 4/1985; eliminated 10/1991; 1/1994 | | NAKINA |
| 16 | MWTT | Michigan-Wisconsin Transportation Co. | added 4/85; eliminated 10/91; 1/94 | | NRHS |
| 17 | MWTT | RETIRED 01-25-93 ATP (512) [MICHIGAN-WISCONSIN TRANSPORTATION CO.] | | | PWRC |
| 18 | MWTT | Michigan-Wisconsin Transportation | | | RSRV |
| 19 | MWTU | SHANGHAI MILKYWAY CHEMICAL LOGISTICS CO, Ltd | | PRC | BIC |
| 20 | MWTU | SHANGHAI MILKYWAY TANK CONTAINER LO | | | SCAC4 |
| 21 | MWTV | MIDWAY TOURS & TRAVEL | | | SCAC4 |
| 22 | MWTW | MISSOURI WAY TRANSPORTATION LLC | | | SCAC4 |
| 23 | MWTX | Midwest Ethanol Transport, LLC | added 1/2007 | | NAKINA |
| 24 | MWTX | MIDWEST ETHANOL TRANSPORT, LLC | | | PWRC |
| 25 | MWTX | MIDWEST ETHANOL TRANSPORT LLC | | | SCAC4 |
