| 1 | ARO | Arrow Aviation Ltd. | Callsign: Arrow, | CDN | AVCODES |
| 2 | ARO | Arrow Aviation Ltd. | | | ICAO1 |
| 3 | ARO | ARROW TRAILWAYS OF TEXAS | | | SCAC4 |
| 4 | AROB | AEROBUS | | | SCAC3 |
| 5 | AROB | ASTRO TRANSPORT | | | SCAC4 |
| 6 | AROC | ARGENOS MARINE COMPANY LTD | | | SCAC3 |
| 7 | AROD | ARONDELLI TRUCKING SERVICE | | | SCAC3 |
| 8 | AROD | ADIRONDACK ROWING | | | SCAC4 |
| 9 | AROF | AMERICAN ROLL-ON ROLL-OFF CARRIER L | | | SCAC4 |
| 10 | AROF | Aberdeen and Rockfish R.R. Co. | Real: AR | USA | TRAFFIC |
| 11 | AROI | ARMOUR OIL CO | | | SCAC3 |
| 12 | AROI | ARROW LOGISTICS INC | | | SCAC4 |
| 13 | AROJ | A R O TRUCKING | | | SCAC3 |
| 14 | AROK | ARROW TRUCKING CO | | | SCAC3 |
| 15 | AROL | AERO LIQUID TRANSIT INC | | | SCAC3 |
| 16 | AROM | ARROW MARINE TRANSPORT | | | SCAC3 |
| 17 | AROM | AUTOTRANSPORTES ROMEDU S A DE C V | | | SCAC4 |
| 18 | ARON | ARROW TRUCKING CO | | | SCAC3 |
| 19 | AROO | ARNOLD, MAX & SONS TRANSPORTATION L | | | SCAC4 |
| 20 | AROQ | ARROW MOVING INC | | | SCAC3 |
| 21 | AROR | AGROREFRIGERADOS SAN JOSE SA DE CV | | | SCAC4 |
| 22 | AROT | ARROW TRANSPORTATION COMPANY | | | SCAC3 |
| 23 | AROU | ARO CONTLEASE LTD | | | SCAC3 |
| 24 | AROV | ARROW VAN & STORAGE, LTD | | | SCAC3 |
| 25 | AROV | A R T TRANSPORTATION SERVICES INC | | | SCAC4 |
| 26 | AROW | ARROW MAILING | | | SCAC4 |
| 27 | AROX | General American Transportation Corp. | 4/1970-1/1980; eliminated 1/1988; 1/1994-7/2005 (not listed) | | NAKINA |
| 28 | AROX | Air Reduction Co., Inc. (General American Transportation Corp.) | 10/1966 | | NAKINA |
| 29 | AROX | General American Transportation Corp. | 1/1952-7/1965 | | NAKINA |
| 30 | AROX | Arro Oil & Refining Co. | 7/1935-1/1941 | | NAKINA |
| 31 | AROX | Arro Oil & Refining Co. | Apr-38 | | NRHS |
| 32 | AROX | General American Transportation Corp. | 1/52-7/65 | | NRHS |
| 33 | AROX | Air Reduction Co., Inc. (General American Transportation Corp.) | Oct-66 | | NRHS |
| 34 | AROX | General American Transportation Corp. | 4/70-1/80; eliminated 1/88; 1/94-7/2000 | | NRHS |
| 35 | AROX | *ARRO OIL & REFINING CO. | | | PWRC |
| 36 | AROX | +GATX [AIR REDUCTION CO.] | | | PWRC |
| 37 | AROX | Arro Oil & Refining (GATX Corporation) | | | RSRV |
| 38 | AROX | AIR REDUCTION CO INC | | | SCAC3 |
| 39 | AROY | AROUND THE CLOCK TRANSPORT INC | | | SCAC4 |
| 40 | AROZ | AGROCK | | | PWRC |