| 1 | API | ASA Pesada, Lda. | Callsign: Asa Pesada, | ANG | AVCODES |
| 2 | API | Air Panama International | IATA: OP, Callsign: Arpa, | PA | AVCODES |
| 3 | API | ASA Pesada, Lda. | | | ICAO1 |
| 4 | APIA | APPALACHIAN CHARTERS | | | SCAC4 |
| 5 | APIC | AMERICAN PACIFIC INTERNATIONAL COAC | | | SCAC3 |
| 6 | APID | APACHE AG INDUSTRIES INC | | | SCAC3 |
| 7 | APID | ALPID LLC | | | SCAC4 |
| 8 | APIE | ATLANTIC PACIFIC EXPRESS | | | SCAC3 |
| 9 | APIF | AMERICAN PACIFIC TRANSPORTATION INC | | | SCAC3 |
| 10 | APIH | ALPINE HELICOPTERS LTD | | | SCAC4 |
| 11 | APIJ | ALL PORTS INTERNATIONAL INC | | | SCAC4 |
| 12 | APIL | AMERICAN PACIFIC INTERNATIONAL COAC | | | SCAC3 |
| 13 | APIM | ALL POINTS MOVERS | | | SCAC3 |
| 14 | APIM | ALLEGRA PRINT & IMAGING | | | SCAC4 |
| 15 | APIN | ALPINE CARRIERS INC | | | SCAC3 |
| 16 | APIO | AMERICAN PATRIOT LINES INC | | | SCAC4 |
| 17 | APIP | ALPINE TOURS | | | SCAC3 |
| 18 | APIP | ABSOLUTE PROMOTIONS INC | | | SCAC4 |
| 19 | APIR | ASPIRATIONS INCORPORATED | | | SCAC4 |
| 20 | APIS | APOLIS TRANSPORT INC | | | SCAC3 |
| 21 | APIT | ALPINE TRUCKING COMPANY INCORPORATE | | | SCAC3 |
| 22 | APIT | APM TRANSPORTATION INC | | | SCAC4 |
| 23 | APIU | APL CO PTE LTD-NOL GROUP | | | SCAC4 |
| 24 | APIW | AIR POWER INTERNATIONAL EXPRESS | | | SCAC3 |
| 25 | APIW | AIR POWER INTERNATIONAL EXPRESS (US | | | SCAC4 |
| 26 | APIX | The Commonwealth Plan, Inc. | 7/2005 (not listed) | | NAKINA |
| 27 | APIX | The Commonwealth Plan, Inc. (subsidiary of Bankers Leasing Corp.) | eliminated 4/2003 | | NAKINA |
| 28 | APIX | The Commonwealth Plan, Inc. | added 7/1967; 4/1970-7/2000 | | NAKINA |
| 29 | APIX | Allied Packers Inc. | 8/1920-7/1923 | | NAKINA |
| 30 | APIX | The Commonwealth Plan, Inc. | added 7/67; 4/70-7/2000 | | NRHS |
| 31 | APIX | *ALLIED PACKERS | | | PWRC |
| 32 | APIX | +COMMONWEALTH PLAN, INC. (AIR PRODUCTS & CHEMICALS, LESSEE) | | | PWRC |
| 33 | APIX | Allied Packers (Auriga Polymers) | | | RSRV |
| 34 | APIX | AURIGA POLYMERS INC | | | SCAC4 |
| 35 | APIY | A P INTERNATIONAL COURTIER EN TRANS | | | SCAC4 |
