| 1 | IAS | International Air Service Co. | Callsign: Starfleet, ICAO callsign changed from Iasco | USA | AVCODES |
| 2 | IAS | International Air Service Co. | Callsign: Iasco, ICAO callsign changed to Starfleet | USA | AVCODES |
| 3 | IAS | International Air Service | | | ICAO1 |
| 4 | IASA | I A S INTERNATIONAL ANDROMEDA SHIPP | | | SCAC4 |
| 5 | IASB | INTERCONTINENTAL AUTO SALES AND REP | | | SCAC4 |
| 6 | IASC | INTERNATIONAL AVIATION SERVICE INC | | | SCAC4 |
| 7 | IASG | INTER-AMERICA SHIPPING | | | SCAC4 |
| 8 | IASL | IAS LOGISTICS DFW LLC | | | SCAC4 |
| 9 | IASU | IOWA INTERSTATE RAILROAD LTD | | | SCAC4 |
| 10 | IASX | Idaho Asphalt Supply, Inc. | 7/2005 (not listed) | | NAKINA |
| 11 | IASX | IDAHO ASPHALT SUPPLY, INC. | | | PWRC |
| 12 | IASX | IDAHO ASPHALT SUPPLY INC | | | SCAC4 |
| 13 | IASZ | IOWA INTERSTATE RAILROAD, LTD. | | | PWRC |
| 14 | IASZ | Iowa Interstate Railroad | | | RSRV |
