1 | ISN | Interisland Airlines | Callsign: Tri-Bird, AOC revoked on 23 April 2010. | RP | AVCODES |
2 | ISN | Interisland Airlines | | | ICAO1 |
3 | ISN | Iowa Southern Utilities Co. | 4/1938 | | NAKINA |
4 | ISN | Iowa Southern Utilities Co. | Apr-38 | | NRHS |
5 | ISN | IOWA SOUTHERN UTILITIES CO. | | | PWRC |
6 | ISNC | I L S INC | | | SCAC4 |
7 | ISNO | ISON OIL COMPANY LLC | | | SCAC4 |
8 | ISNS | IASON SHIPPING LIMITED | | | SCAC4 |