| 1 | MLS | Mall Airways, Inc. | Callsign: Mall-Airways, | USA | AVCODES |
| 2 | MLS | Mall Airways | | | ICAO1 |
| 3 | MLS | Manistique & Lake Superior R.R. | 4/1938-10/1966 | | NAKINA |
| 4 | MLS | Manistique & Lake Superior R.R. | 4/38-10/66 | | NRHS |
| 5 | MLS | MANISTIQUE & LAKE SUPERIOR RAILROAD | | | PWRC |
| 6 | MLSA | MAIL CARRIERS INCORPORATED | | | SCAC4 |
| 7 | MLSC | MILES SUPPLY CO INC | | | SCAC4 |
| 8 | MLSF | MITCHELL SUPREME FUEL CO | | | SCAC4 |
| 9 | MLSI | MERCATOR LINES LIMITED | | | SCAC4 |
| 10 | MLSJ | MULTISERVICIOS JOSAN | | | SCAC4 |
| 11 | MLSK | MORALES TRUCKING | | | SCAC4 |
| 12 | MlSlJ | Mellersta Södermanlands Järnväg | 1907 - 1931 | S | svenska-lok.se |
| 13 | MLSN | MILLER, SCOTT TRUCKING | | | SCAC4 |
| 14 | MLSO | MILESTONE EQUIPMENT CORPORATION | | | SCAC4 |
| 15 | MLSP | MILLSOP TRUCKING CO | | | SCAC4 |
| 16 | MLSR | MILOS RESTAURANT | | | SCAC4 |
| 17 | MLST | Milstead | 1/1975-1/1980 | | NAKINA |
| 18 | MLST | Milstead | 1/75-1/80 | | NRHS |
| 19 | MLST | MILSTEAD RAILROAD | | | PWRC |
| 20 | MLST | MILES TRANSPORT | | | SCAC4 |
| 21 | MLSU | MILLER INTERMODAL LOGISTICS SERVICES INC | | USA | BIC |
| 22 | MLSU | Miller Intermodal Logistics Services | | | RSRV |
| 23 | MLSU | MILLER INTERMODAL LOGISTICS SERVICE | | | SCAC4 |
| 24 | MLSV | MARKET LOGISTICS SERVICES LTD | | | SCAC4 |
| 25 | MLSX | Monsanto Co. | added 10/1997; added 1/1998; 7/2000-7/2005 | | NAKINA |
| 26 | MLSX | Monsanto Co. | added 10/97; added 1/98; 7/2000 | | NRHS |
| 27 | MLSX | MONSANTO COMPANY | | | PWRC |
| 28 | MLSX | Monsanto | | | RSRV |
| 29 | MLSX | MONSANTO COMPANY | | | SCAC4 |
