| 1 | LAP | TAM Mercosur | IATA: PZ | | ICAO1 |
| 2 | LAPA | LAPLANT TRANSPORT INC | | | SCAC4 |
| 3 | LAPB | LAMPING BLACKTOP INC | | | SCAC3 |
| 4 | LAPB | LAMPING BLACKTOP INC | | | SCAC4 |
| 5 | LAPE | LAPE TRUCKING | | | SCAC3 |
| 6 | LAPE | Líneas Aéreas Postales Españolas | | E | TRAFFIC |
| 7 | LAPF | LAPOINTE & FILS LTEE | | | SCAC3 |
| 8 | LAPH | LANDPHIER, PHIL TRUCKING | | | SCAC3 |
| 9 | LAPI | LAPIERRE USA INC | | | SCAC4 |
| 10 | LAPJ | L AND P EXPRESS OF | | | SCAC4 |
| 11 | LAPK | LAMPKIN TRUCKING CO | | | SCAC3 |
| 12 | LAPK | LODGE AT PARENT LAKE, THE | | | SCAC4 |
| 13 | LAPL | LAPLANTE BROS, INC | | | SCAC3 |
| 14 | LAPL | LAPTON FREIGHT INTERNATIONAL LIMITE | | | SCAC4 |
| 15 | LAPM | LOS ANGELES PAPER BOX & BOARD MILLS | | | SCAC3 |
| 16 | LAPN | LAMPTON-LOVE INC | | | SCAC3 |
| 17 | LAPN | L A PREP INC | | | SCAC4 |
| 18 | LAPO | LAPOINT TRANSPORT INC | | | SCAC3 |
| 19 | LAPP | LINEA AMAZONICA PERUANA SA, PERU | | | SCAC4 |
| 20 | LAPQ | LANGDON, A P INC | | | SCAC3 |
| 21 | LAPR | L A TRANSPORTS | | | SCAC3 |
| 22 | LAPR | LAPPAGE, R & SON TRUCKING LTD | | | SCAC4 |
| 23 | LAPS | LAPIDARIUS | | | SCAC4 |
| 24 | LAPT | Los Angeles Union Passenger Terminal | 1/1975-7/2005 | | NAKINA |
| 25 | LAPT | Los Angeles Union Passenger Terminal | 1/75-7/2000 | | NRHS |
| 26 | LAPT | LOS ANGELES UNION PASSENGER TERMINAL | | | PWRC |
| 27 | LAPT | Los Angeles Union Passenger Terminal | | | RSRV |
| 28 | LAPT | LA PORTE TRANSIT CO | | | SCAC3 |
| 29 | LAPT | LA PORTE TRANSIT CO, INC | | | SCAC4 |
| 30 | LAPV | LAPADULA & VILLANI INCORPORATED | | | SCAC3 |
| 31 | LAPW | LAPIERRE WATERLOO SMALL INC | | | SCAC4 |
| 32 | LAPX | General American Transportation Corp. | 4/1970-1/1980; eliminated 10/1992 | | NAKINA |
| 33 | LAPX | Linde Air Products Co. (General American Transportation Co.) | 10/1966 | | NAKINA |
| 34 | LAPX | General American Transportation Corp. | 1/1943-7/1965 | | NAKINA |
| 35 | LAPX | Linde Air Products Co. | 1/1941 | | NAKINA |
| 36 | LAPX | General American Transportation Corp. | 1/52-7/65 | | NRHS |
| 37 | LAPX | Linde Air Products Co. (General American Transportation Co.) | Oct-66 | | NRHS |
| 38 | LAPX | General American Transportation Corp. | 4/70-1/80; eliminated 10/92 | | NRHS |
| 39 | LAPX | *LABELLE POINT RAILROAD | | | PWRC |
| 40 | LAPX | *(GATX) RETIRED 08-19-92 ATP (1323) [LINDE AIR PRODUCTS CO.] | | | PWRC |
| 41 | LAPX | Linde Air Products (GATX) | | | RSRV |
