| 1 | IAI | Israel Aircraft Industries Ltd. | Callsign: Israel Aircraft, Designator BK recalled by IATA | IL | AVCODES |
| 2 | IAI | Israel Aircraft Industries Ltd. | IATA: BK, Callsign: Bravo Kilo, Designator BK recalled by IATA. ICAO callsign changed to Israel Aircraft | IL | AVCODES |
| 3 | IAI | Israel Aircraft Industries | | | ICAO1 |
| 4 | IAIL | INNERSYSTEMS AUTOMOTIVE INC | | | SCAC4 |
| 5 | IAIN | IBC AIRWAYS INC | | | SCAC4 |
| 6 | IAIS | Iowa Interstate R.R., Ltd. | added 1/1985; 1/1994-7/2005 | | NAKINA |
| 7 | IAIS | Iowa Interstate R.R., Ltd. | added 1/85; 1/94-7/2000 | | NRHS |
| 8 | IAIS | IOWA INTERSTATE RAILROAD, LTD. | | | PWRC |
| 9 | IAIS | Iowa Interstate Railroad | | | RSRV |
| 10 | IAIS | Iowa Interstate | | USA | TRAFFIC |
| 11 | IAIU | Intertronic Solutions | | | RSRV |
