| 1 | MCX | Cargo Express | Callsign: Mauricargo, | RIM | AVCODES |
| 2 | MCX | Cargo Express | | | ICAO1 |
| 3 | MCX | The Mead Corp. | 7/1937-7/1954; eliminated 7/1957 | | NAKINA |
| 4 | MCX | The Mead Corporation | 4/38-1/52 | | NRHS |
| 5 | MCX | MEAD CORP. | | | PWRC |
| 6 | MCXB | MEGA COOL EXPRESS INC | | | SCAC4 |
| 7 | MCXC | MCCLURE TRANSFER LLC | | | SCAC4 |
| 8 | MCXE | MC EXPRESS INC | | | SCAC4 |
| 9 | MCXF | MC EXPRESS TRANSPORTS LLC | | | SCAC4 |
| 10 | MCXG | MAC TRANSPORTATION LTD | | | SCAC4 |
| 11 | MCXK | MAY & CARTER TRANSPORT INC | | | SCAC4 |
| 12 | MCXN | MCN EXPRESS INCORPORATED | | | SCAC4 |
| 13 | MCXP | MERCY EXPRESS | | | SCAC4 |
| 14 | MCXQ | METRO CITY TRANSPORTATION INC | | | SCAC4 |
| 15 | MCXU | CARGO LEVANT SCHIFFAHRTSGES M B H | | | SCAC4 |
| 16 | MCXV | MANTEC EXPRESS LIMITED | | | SCAC4 |
