| 1 | ARI | Aero Vics, S.A. de C.V. | Callsign: Aerovics, | MEX | AVCODES |
| 2 | ARI | Aero Vics | | | ICAO1 |
| 3 | ARIA | ARIEL TRANSPORT SERVICE INC | | | SCAC4 |
| 4 | ARIB | AIR RIDE TRANSPORT INC | | | SCAC3 |
| 5 | ARID | ARLINGTON DISTRIBUTING COMPANY | | | SCAC3 |
| 6 | ARID | ARLINGTON DISTRIBUTING COMPANY | | | SCAC4 |
| 7 | ARIDA | Aridagawa Railway Museum | | J | TRAFFIC |
| 8 | ARIE | ARCTIC EXPRESS INC | | | SCAC4 |
| 9 | ARIF | ALL AMERICA CARRIERS LLC | | | SCAC4 |
| 10 | ARIH | ATTARIAN, J TRUCKING CO | | | SCAC4 |
| 11 | ARII | ARROW INDUSTRIES INC | | | SCAC3 |
| 12 | ARII | ARIMAR INTERNATIONAL SPA | | | SCAC4 |
| 13 | ARIJ | ARIST MARITIME INC | | | SCAC4 |
| 14 | ARIK | ARIES TRUCKING INC | | | SCAC3 |
| 15 | ARIK | AMERICAN TRANSPORT INC | | | SCAC4 |
| 16 | ARIL | AUTOMOTIVE RESOURCES INTERNATIONAL | | | SCAC4 |
| 17 | ARIM | ARNOLD INTERNATIONAL MOVERS INC | | | SCAC3 |
| 18 | ARIO | AROUND TOWN DELIVERY | | | SCAC3 |
| 19 | ARIO | AUTOTRANSPORTES MORI SA DE CV | | | SCAC4 |
| 20 | ARIP | AIRLINE INC | | | SCAC3 |
| 21 | ARIQ | ALLIED RIGGERS INC | | | SCAC3 |
| 22 | ARIQ | ARMSTRONG RELOCATION OF ILLINOIS LL | | | SCAC4 |
| 23 | ARIR | ARIES TRANSPORTATION COMPANY INCORP | | | SCAC3 |
| 24 | ARIS | ARISON SHIPPING COMPANY | | | PWRC |
| 25 | ARIT | AREA TRANSPORTATION COMPANY | | | SCAC3 |
| 26 | ARIT | AREA TRANSPORTATION (ADS LOGISTICS | | | SCAC4 |
| 27 | ARIU | DAVIDE CAMPARI MILANO SPA | | | SCAC4 |
| 28 | ARIV | ARMSTRONG, IVAN TRUCKING (DIV OF 44 | | | SCAC4 |
| 29 | ARIW | AMERICAN WAY INC | | | SCAC3 |
| 30 | ARIW | ACE RELOCATION SYSTEMS INC OF WA | | | SCAC4 |
| 31 | ARIX | General Electric Rail Services Corp. | added 1/2000; 7/2000-7/2005 | | NAKINA |
| 32 | ARIX | BOC Gases, a Division of the BOC Group, Inc. | eliminated 1/2000 | | NAKINA |
| 33 | ARIX | Airco Industrial Gases, A Division of Airco, Inc. | added 1/1972; 1/1975-1/1994 | | NAKINA |
| 34 | ARIX | Airco Industrial Gases, Division of Air Reduction Co. Inc. | 4/1970; eliminated 1/1972 | | NAKINA |
| 35 | ARIX | Allegany Refiners, Inc. | 7/1935-4/1938 | | NAKINA |
| 36 | ARIX | Airco Industrial Gases Division, Air Reduction Co., Inc. | added 10/1967 | | NAKINA |
| 37 | ARIX | Allegany Refiners, Inc. | Apr-38 | | NRHS |
| 38 | ARIX | Airco Industrial Gases Division, Air Reduction Co., Inc. | added 10/67 | | NRHS |
| 39 | ARIX | Airco Industrial Gases, Division of Air Reduction Co. Inc. | 4/70; eliminated 1/72 | | NRHS |
| 40 | ARIX | Airco Industrial Gases, A Division of Airco, Inc. | added 1/72; 1/75-1/94 | | NRHS |
| 41 | ARIX | BOC Gases, a Division of the BOC Group, Inc. | eliminated 1/2000 | | NRHS |
| 42 | ARIX | General Electric Rail Services Corp. | added 1/2000; 7/2000 | | NRHS |
| 43 | ARIX | *ALLEGANY REFINERS, INC. | | | PWRC |
| 44 | ARIX | *BOC GASSES {AIRCO INDUSTRIAL GASES DIV. OF AIRCO INC. ; AIR REDUCTION CO.] | | | PWRC |
| 45 | ARIX | +GENERAL ELECTRIC RAIL SERVICES CORP. | | | PWRC |
| 46 | ARIX | Arco Industrial Gases (GE Rail Services Corporation) | | | RSRV |
| 47 | ARIX | GENERAL ELECTRIC RAILCAR SERVICES C | | | SCAC4 |
| 48 | ARIY | AIR-RIDE SYSTEMS INC | | | SCAC3 |
| 49 | ARIZ | ARCO INDUSTRIAL | | | PWRC |
