| 1 | ARA | Aerobeira, Sociedade de Transportes Aereos Lda | Callsign: Aerobeira, | P | AVCODES |
| 2 | ARA | Aurora Air Service, Inc. | Callsign: Aurora, | USA | AVCODES |
| 3 | ARA | Arik Air | IATA: W3, Callsign: Arik Air, IATA Prefix: 725, Operations restarted. Ceased Operations on 20 September 2012. | WAN | AVCODES |
| 4 | ARA | Arik Air | | | ICAO1 |
| 5 | ARA | Arcade & Attica R.R. Corp. | 4/1970; eliminated 11/1973; 1/1975-7/2000; eliminated 1/2005; 7/2005 | | NAKINA |
| 6 | ARA | Arcade & Attica R.R. Corp. | 4/70; eliminated 11/73; 1/75-7/2000 | | NRHS |
| 7 | ARA | ARCADE & ATTICA RAILROAD CORP | | | PWRC |
| 8 | ARA | Arcade and Attica Railroad | | | RSRV |
| 9 | ARA | Arcade & Attica R.R. Corp. | | USA | TRAFFIC |
| 10 | ARAB | ARAB CARTAGE & EXPRESS | | | SCAC3 |
| 11 | ARAB | ARAB CARTAGE & EXPRESS | | | SCAC4 |
| 12 | ARAC | ARCO AUTO CARRIERS, INC | | | SCAC3 |
| 13 | ARAD | A-R-A TRUCKING INC | | | SCAC3 |
| 14 | ARAD | ARA SHOES CANADA INC | | | SCAC4 |
| 15 | ARAD | | City: Arad | RO | TRAFFIC |
| 16 | ARAE | ARNIO, ARNIE M | | | SCAC3 |
| 17 | ARAE | ARPA ENTERPRISES INC | | | SCAC4 |
| 18 | ARAF | AMERPOLE AIR FREIGHT | | | SCAC3 |
| 19 | ARAF | ARK VALLEY OIL COMPANY LLC | | | SCAC4 |
| 20 | ARAG | ARAGO TRUCKING | | | SCAC4 |
| 21 | ARAH | ARMTEC | | | SCAC4 |
| 22 | ARAIL | Aarsleff Rail A/S | | DK | VKM |
| 23 | ARAJ | ARA TRANSPORTATION INC | | | SCAC3 |
| 24 | ARAJ | ARAUJO GARZA, INDALECIO | | | SCAC4 |
| 25 | ARAK | ARA TRUCKING CORP | | | SCAC3 |
| 26 | ARAK | ARAKELIAN ENTERPRISES | | | SCAC4 |
| 27 | ARAL | ARABIAN STEAMSHIP LINES | | | PWRC |
| 28 | ARAL | A & L TRUCKING | | | SCAC3 |
| 29 | ARAM | ARABIAN SHIPPERS | | | PWRC |
| 30 | ARAMIS | Przewóz Osób i Towarów Firma Aramis, Dariusz Armatys | | PL | TRAFFIC |
| 31 | ARAO | ARA TRANSPORTATION GROUP | | | SCAC3 |
| 32 | ARAP | ARAPAHOE PIPE LINE COMPANY | | | SCAC3 |
| 33 | ARAQ | ARRIOLA TRUCKING | | | SCAC3 |
| 34 | ARAQ | ARMENDARIZ, JOSE TRUCKING | | | SCAC4 |
| 35 | ARAR | ARCHER AND ARCHER, INC | | | SCAC3 |
| 36 | ARAT | ARCADIA TRANSPORTATION COMPANY | | | SCAC3 |
| 37 | ARAT | AUTO TRANSPORTES FRAJARA | | | SCAC4 |
| 38 | ARAU | ARA F&D | | ROK | BIC |
| 39 | ARAU | ALEXANDRIA SHIPPING & NAVIGATION CO | | | SCAC3 |
| 40 | ARAV | ARAMBEL, JOHN TRUCKING INC | | | SCAC4 |
| 41 | ARAW | ARROW AIR INC | | | SCAC3 |
| 42 | ARAW | ARNOFF MOVING & STORAGE OF ALBANY I | | | SCAC4 |
| 43 | ARAY | ARA TRANSPORTATION INC | | | SCAC3 |
| 44 | ARAY | ARCO LOGISTICS INC | | | SCAC4 |
