| 1 | ARZ | Air Resorts | Callsign: Air Resorts, | USA | AVCODES |
| 2 | ARZ | Azurair GmbH | Callsign: Blue Eagle, Commenced operations on 03 July 2017. Ceased operations on 26 September 2018. | D | AVCODES |
| 3 | ARZ | Airborne Imaging, Inc. | Callsign: Airborne, | USA | AVCODES |
| 4 | ARZ | Air Resorts | | | ICAO1 |
| 5 | ARZ | AMERICAN MAIZE | | | PWRC |
| 6 | ARZC | Arizona & California R.R. Co. | added 10/1991; 1/1994; added 4/1994; 7/2000-7/2005 | | NAKINA |
| 7 | ARZC | Arizona & California R.R. Co. | added 10/91; 1/94; added 4/94; 7/2000 | | NRHS |
| 8 | ARZC | ARIZONA & CALIFORNIA RAILROAD COMPANY | | | PWRC |
| 9 | ARZC | Arizona and California Railroad | | | RSRV |
| 10 | ARZC | Arizona and California Railroad | | | RSRV |
| 11 | ARZC | ARIZONA & CALIFORNIA RAILROAD CO | | | SCAC3 |
| 12 | ARZC | ARIZONA & CALIFORNIA RAILROAD CO | | | SCAC4 |
| 13 | ARZC | Arizona & California Railroad Company | | USA | TRAFFIC |
| 14 | ARZD | ARC INDUSTRIES | | | SCAC4 |
| 15 | ARZH | ARCTIC RUNNER SHIPPING ULC | | | SCAC4 |
| 16 | ARZL | ARIZONA TANK LINES INC | | | SCAC3 |
| 17 | ARZP | ARIZPE BENAVIDES, CARLOS GILBERTO | | | SCAC4 |
| 18 | ARZR | ARIZONA ROLL-OFFS LLC | | | SCAC4 |
| 19 | ARZS | ANTARCTICA SHIPPING CO LTD PIRAEUS | | | SCAC3 |
| 20 | ARZS | ARNEZS TRUCKING LLC | | | SCAC4 |
| 21 | ARZT | ARIZONA TRUCKING COMPANY | | | SCAC3 |
| 22 | ARZT | ANDERSONS, RL SPECIALIZED TRANSPORT | | | SCAC4 |
| 23 | ARZT | Arzt Reisen | | D | TRAFFIC |
