| 1 | APT | LAP Colombia - Lineas Aereas Petroleras, S.A. | | | ICAO1 |
| 2 | APT | ALBANY PASSENGER TERMINAL CO. | | | PWRC |
| 3 | APTA | APOLLO TRANSPORTATION CO | | | SCAC3 |
| 4 | APTA | APOLLO TRANSPORTATION CO INC | | | SCAC4 |
| 5 | APTB | APL LOGISTICS TRANSPORTATION MANAGE | | | SCAC4 |
| 6 | APTC | ALLEN PETROLEUM CO OF EAST TENNESSE | | | SCAC4 |
| 7 | APTD | AIRPORT DISTRIBUTORS INC | | | SCAC3 |
| 8 | APTE | AIRPORT TERMINAL SERVICES INC | | | SCAC3 |
| 9 | APTE | AUTOTRANSPORTES OLGUIN | | | SCAC4 |
| 10 | APTF | AIRPORT TRANSFER SERVICES INC | | | SCAC3 |
| 11 | APTG | ALL POINTS TRUCKING INC | | | SCAC3 |
| 12 | APTG | ALL POINTS LOGISTICS | | | SCAC4 |
| 13 | APTH | A & P TRUCKING INC | | | SCAC3 |
| 14 | APTH | AMERICAN PETROLEUM TANKERS LLC | | | SCAC4 |
| 15 | APTI | A & P TRUCKING INC | | | SCAC3 |
| 16 | APTJ | ALL POINTS TRANSPORTATION INC | | | SCAC3 |
| 17 | APTJ | A & P TRANSPORT LTD | | | SCAC4 |
| 18 | APTK | APACHE TRUCK LINES, INC. | | | SCAC3 |
| 19 | APTK | APACHE TRUCK LINES INC | | | SCAC4 |
| 20 | APTL | APT LOGISTICS INC | | | SCAC4 |
| 21 | APTM | ALS PETROLEUM SERVICE INC | | | SCAC3 |
| 22 | APTM | ALPINE TAXIDERMY | | | SCAC4 |
| 23 | APTO | AMERICAN PACIFIC TRANSPORT CO LTD | | | SCAC3 |
| 24 | APTO | AMERICAN PATRIOT TRANSPORT LLC | | | SCAC4 |
| 25 | APTP | APNA PUNJAB TRANSPORT INC | | | SCAC4 |
| 26 | APTQ | ALL PIERS TRUCKING CORP | | | SCAC3 |
| 27 | APTR | A-PLUS TRANSPORTATION | | | SCAC4 |
| 28 | APTS | A PLUS TRANSPORTATION | | | SCAC4 |
| 29 | APTS | Airport Transport Service Co. | | J | TRAFFIC |
| 30 | APTT | APPLE TRANSPORT INC | | | SCAC3 |
| 31 | APTU | AIR PRODUCTS (SOUTH AFRICA) | | ZA | BIC |
| 32 | APTV | AUTO PARTES Y TRACTO PARTES VIEYRA | | | SCAC4 |
| 33 | APTW | ALL POINTS TRANSPORT CORPORATION | | | SCAC3 |
| 34 | APTW | ALL POINTS TRANSPORT (DIVISION OF E | | | SCAC4 |
| 35 | APTX | Air Products and Chemicals, Inc. | added 1/1991; 1/1994-7/2005 | | NAKINA |
| 36 | APTX | American Petrofina Co. of Texas | added 10/1958; 4/1961-1/1975; eliminated 1/1978 | | NAKINA |
| 37 | APTX | Acme Petroleum Co. | 8/1920-1/1941 | | NAKINA |
| 38 | APTX | Acme Petroleum Co. | Apr-38 | | NRHS |
| 39 | APTX | American Petrofina Co. of Texas | added 10/58; 4/61-1/75; eliminated 1/78 | | NRHS |
| 40 | APTX | Air Products and Chemicals, Inc. | added 1/91; 1/94-7/2000 | | NRHS |
| 41 | APTX | *ACME PETROLEUM CO. | | | PWRC |
| 42 | APTX | *AMERICAN PETROFINA CO. OF TEXAS | | | PWRC |
| 43 | APTX | +AIR PRODUCTS AND CHEMICALS, INC. | | | PWRC |
| 44 | APTX | Air Products and Chemicals | | | RSRV |
| 45 | APTX | AMERICAN PETROFINA COMPANY OF TEXAS | | | SCAC3 |
| 46 | APTX | AIR PRODUCTS AND CHEMICAL INC | | | SCAC4 |
| 47 | APTY | A & P TRANSPORTATION INC | | | SCAC3 |
