| 1 | MPD | Air Comet, S.A. | IATA: A7, Callsign: Red Comet, IATA Prefix: 352, Ceased operations on 21 December 2009. IATA designator changed from 2Z* | E | AVCODES |
| 2 | MPD | Air Comet, S.A. | IATA: 2Z, Callsign: Red Comet, Established on 23 December 1996 as Air Plus Comet and started operations on 01 March 1997. Name changed from Air Plus Comet, S.A. w.e.f. January 2007. IATA designator changed to A7 | E | AVCODES |
| 3 | MPD | Air Plus Comet, S.A. | IATA: 2Z, Callsign: Red Comet, Established on 23 December 1996. Name changed to Air Comet, S.A. w.e.f. January 2007 | E | AVCODES |
| 4 | MPD | Air Plus Comet | IATA: A7 | | ICAO1 |
| 5 | MPDB | MAINPRIZE, D B TRANSPORT CO | | | SCAC4 |
| 6 | MPDF | MAPLE DALE FARMS | | | SCAC4 |
| 7 | MPDI | MPD INC | | | SCAC4 |
| 8 | MPDK | MPD TRUCKING | | | SCAC4 |
| 9 | MPDN | MPD TRANSPORT INC | | | SCAC4 |
| 10 | MPDR | MATERIAS PRIMAS DE REYNOSA SA DE CV | | | SCAC4 |
| 11 | MPDS | MULTIPRODUCTOS DEPORTIVOS US SA DE | | | SCAC4 |
| 12 | MPDW | MPD WELDING LTD | | | SCAC4 |
| 13 | MPDX | Merchants Despatch Transportation Corp. (reporting marks for Michigan Products Dairy Co.) | 7/1937-1/1941 | | NAKINA |
| 14 | MPDX | Michigan Producers Dairy Co. (Merchants Despatch, Inc.) | 7/1935 | | NAKINA |
| 15 | MPDX | Michigan Products Dairy Co. (Merchants Despatch Transportation Corp.) | Apr-38 | | NRHS |
| 16 | MPDX | MICHIGAN PRODUCTS DAIRY CO. (MERCHANTS DESPATCH TRANSPORTATION CORP.) | | | PWRC |
| 17 | MPDZ | MARTIN DRAKE POWER PLANT | | | PWRC |
