| 1 | ARB | Avia Air N.V. | IATA: 3R, Callsign: Aviair, Ceased operations. IATA designator changed from 8R* | ARU | AVCODES |
| 2 | ARB | Arubair | | ARU | AVCODES |
| 3 | ARB | AirBahn, Inc. | Callsign: Airbahn, | USA | AVCODES |
| 4 | ARB | Avia Air N.V. | | | ICAO1 |
| 5 | ARBA | AMERICAN RED BALL INTERNATIONAL INC | | | SCAC3 |
| 6 | ARBB | ANGEL RRV BUS LINE INC | | | SCAC3 |
| 7 | ARBB | ARVI BASSES | | | SCAC4 |
| 8 | ARBC | AMERICAN RUBBER PRODUCTS CORP | | | SCAC3 |
| 9 | ARBD | APTI | | | SCAC4 |
| 10 | ARBE | ARBE TRANSFER CO INC | | | SCAC3 |
| 11 | ARBED | Aciéries Réunies de Burbach-Eich-Dudelange | | L | TRAFFIC |
| 12 | ARBF | AIRBORNE FORWARDING CORPORATION | | | SCAC3 |
| 13 | ARBF | ARIZONA OUTBACK ADVENTURES | | | SCAC4 |
| 14 | ARBGI | Arbegui s.a. | | ES | VKM |
| 15 | ARBH | ARNOLD, BERT | | | SCAC3 |
| 16 | ARBK | ARAB MARITIME PETROLEUM TRANSPORT | | | SCAC3 |
| 17 | ARBK | ARROWHEAD TRANSPORTATION SERVICES I | | | SCAC4 |
| 18 | ARBL | ARMBRO TRANSPORT LTD | | | SCAC3 |
| 19 | ARBL | ARMBRO TRANSPORT INC | | | SCAC4 |
| 20 | ARBN | ARTUROS TRANSFER | | | SCAC4 |
| 21 | ARBO | ARBOR FREIGHT SERVICE INC | | | SCAC3 |
| 22 | ARBP | ARBALLO TRANSPORTATION INC | | | SCAC3 |
| 23 | ARBQ | ANDERSON, ROBERT ALDEN | | | SCAC3 |
| 24 | ARBQ | ART LOGISTICS INC | | | SCAC4 |
| 25 | ARBR | A R B INC | | | SCAC4 |
| 26 | ARBR | Rail ARB s.r.o | | SK | VKM |
| 27 | ARBS | ARMOR BUILDING SUPPLY | | | SCAC4 |
| 28 | ARBT | ARBET ASSEMBLY AND DISTRIBUTING SER | | | SCAC3 |
| 29 | ARBTP | Arriva Bus Transport Polska | | PL | TRAFFIC |
| 30 | ARBW | A RELIABLE TRUCKING & WAREHOUSE CO | | | SCAC3 |
| 31 | ARBW | ARBEC TOOL & MACHINE LTD | | | SCAC4 |
| 32 | ARBX | Arnold Bros. Pickle & Preserve Co. | 7/1930 | | NAKINA |
| 33 | ARBX | ARNOLD BROTHERS PICKLE & PRESERVE CO. | | | PWRC |
