| 1 | MRD | Meridian Air Cargo, Inc. | Callsign: Meridian, | USA | AVCODES |
| 2 | MRD | Meridian Air Cargo | | | ICAO1 |
| 3 | MRDA | MIRANDA JUAREZ, JUAN | | | SCAC4 |
| 4 | MRDB | MORTON, RONALD D | | | SCAC4 |
| 5 | MRDD | MOBILIERS LATITUDE NORD | | | SCAC4 |
| 6 | MRDF | MASTERS, ROBERT DONALD INC | | | SCAC4 |
| 7 | MRDH | MACMILLAN TRANSPORT | | | SCAC4 |
| 8 | MRDI | MERCHANTS DELIVERY SYSTEMS | | | SCAC1 |
| 9 | MRDI | MERIDIAN MANUFACTURING GROUP CANADA | | | SCAC4 |
| 10 | MRDL | MARDEL COAST TRUCKING INC | | | SCAC4 |
| 11 | MRDM | M & R TRANSPORT INC | | | SCAC4 |
| 12 | MRDQ | MCCOLLUM, R DOUGLAS | | | SCAC4 |
| 13 | MRDS | MARINE TRANS A/S | | | SCAC4 |
| 14 | MRDU | MARITIME TRANSPORT LTD. | | GB | BIC |
| 15 | MRDX | MidAmerican Energy Co. | added 4/1999; 7/2000-7/2005 | | NAKINA |
| 16 | MRDX | MidAmerican Energy Co. | added 4/99; 7/2000 | | NRHS |
| 17 | MRDX | MIDAMERICAN ENERGY CO. | | | PWRC |
| 18 | MRDX | MidAmerican Energy | | | RSRV |
| 19 | MRDY | MURDY, G W TRANSPORTATION LTD | | | SCAC4 |
