| 1 | MUL | Mokulele Flight Service, Inc. | IATA: MW, Callsign: Mokulele, IATA Prefix: 415, ICAO designator changed to MHO. ICAO designator changed from BUG. ICAO callsign changed from Speedbuggy. IATA designator changed from 5Z* | USA | AVCODES |
| 2 | MULA | MCCORMICKS USA LOGISTICS INCORPORAT | | | SCAC4 |
| 3 | MULC | MAGNUM LOGISTICS | | | SCAC4 |
| 4 | MULC | Mulleys Coaches | | GB | TRAFFIC |
| 5 | MULD | MULTI-LOAD TRANSPORT INC | | | SCAC4 |
| 6 | MULE | MULTIMATIC TECHNICAL CENTRE (DIV OF | | | SCAC4 |
| 7 | MULG | MULGREW OIL CO | | | SCAC4 |
| 8 | MULH | MULTI TECH | | | SCAC4 |
| 9 | MULH | Soléa | City: Mulhouse | F | TRAFFIC |
| 10 | MULI | MULTIMODAL INTERNATIONAL SHIPPING I | | | SCAC4 |
| 11 | MULL | MULLINS LEASING SERVICE INC | | | SCAC4 |
| 12 | MULLER | Müller Gleisbau AG | | CH | TRAFFIC |
| 13 | MULM | MULLEN TRUCKING LP | | | SCAC4 |
| 14 | MULN | MULLEN BROS OF NORTH ADAMS MASS INC | | | SCAC4 |
| 15 | MULO | MULLER TRANSPORT | | | SCAC4 |
| 16 | MULQ | MULTILINE TRANSPORT LTD | | | SCAC4 |
| 17 | MULT | MULE TEAM EXPRESS INC | | | SCAC4 |
| 18 | MULV | MULVANIA TRUCKING CO | | | SCAC4 |
| 19 | MULX | TEMPORARY - O/T DIV. | | | PWRC |
| 20 | MULY | MULAY EXPRESS | | | SCAC4 |
