| 1 | MAP | National Oceanic & Atmospheric Administration | Callsign: Mapping, | USA | AVCODES |
| 2 | MAP | Altair Jets, C.A. | Callsign: Altjets, | YV | AVCODES |
| 3 | MAPA | MARYLAND & PENNSYLVAINA | | | PWRC |
| 4 | MAPC | M & A EXPRESS INC | | | SCAC4 |
| 5 | MAPE | MADARIS TRANSPORTATION LLC (PIERSID | | | SCAC4 |
| 6 | MAPF | MAPES FUEL OIL INC | | | SCAC4 |
| 7 | MAPI | MASTRONARDI PRODUCE (1995) INC | | | SCAC4 |
| 8 | MAPK | MARX TRUCKING | | | SCAC4 |
| 9 | MAPLE | Maplewood Equipment Co. | | USA | TRAFFIC |
| 10 | MAPN | MID-ATLANTIC TRANSPORT INC | | | SCAC4 |
| 11 | MAPQ | MAP LOGISTICS INC | | | SCAC4 |
| 12 | MAPU | MAP LINE INDIA PRIVATE LIMITED | | IND | BIC |
| 13 | MAPV | MAP TRANSPORTATION INC | | | SCAC4 |
| 14 | MAPW | MONTINA CORPORATION | | | SCAC4 |
| 15 | MAPX | Semgroup LP | added 4/2005; 7/2005 | | NAKINA |
| 16 | MAPX | Williams Energy Ventures, Inc. | added 10/1999; 7/2000; eliminated 4/2005 | | NAKINA |
| 17 | MAPX | Mapco Petroleum, Inc. | added 10/1993; 1/1994; eliminated 10/1999 | | NAKINA |
| 18 | MAPX | Mapco Gas Products, Inc. | eliminated 10/1993 | | NAKINA |
| 19 | MAPX | Mapco Petroleum, Inc. | added 4/1985 | | NAKINA |
| 20 | MAPX | Mapco Products Co. | added 10/1980; eliminated 4/1985 | | NAKINA |
| 21 | MAPX | Mapco Products Co. | added 10/80; eliminated 4/85 | | NRHS |
| 22 | MAPX | Mapco Petroleum, Inc. | added 4/85 | | NRHS |
| 23 | MAPX | Mapco Gas Products, Inc. | eliminated 10/93 | | NRHS |
| 24 | MAPX | Mapco Petroleum, Inc. | added 10/93; 1/94; eliminated 10/99 | | NRHS |
| 25 | MAPX | Williams Energy Ventures, Inc. | added 10/99; 7/2000 | | NRHS |
| 26 | MAPX | SEMGROUP LP [WILLIAMS ENERGY VENTURES; MAPCO PETROLEUM; MAPCO GAS PRODUCTS; MAPCO PRODUCTS CO.] | | | PWRC |
| 27 | MAPX | MAPCO Products | | | RSRV |
| 28 | MAPX | SEMGROUP LP | | | SCAC4 |
