| 1 | ICI | Viking International Airlines (VIA) | Callsign: Iceman, | FIN | AVCODES |
| 2 | ICIA | ICI ARTIFICIAL LIFT INC | | | SCAC4 |
| 3 | ICIB | INTERNATIONAL CABINETS INC | | | SCAC4 |
| 4 | ICIE | INNERCITY EXPRESS INC | | | SCAC4 |
| 5 | ICIK | IMPACT CONTRACTORS INC | | | SCAC4 |
| 6 | ICIM | ICI MIDWEST LLC | | | SCAC4 |
| 7 | ICIM | ICIM ARAD SA | | RO | VKM |
| 8 | ICIMA | ICIM SA Arad | | RO | TRAFFIC |
| 9 | ICIN | INYO CRUDE INC | | | SCAC4 |
| 10 | ICIO | INTEGRAL CARRIERS INC | | | SCAC4 |
| 11 | ICIP | INSTANT COURIER INC | | | SCAC4 |
| 12 | ICIQ | I C E INC | | | SCAC4 |
| 13 | ICIT | INDUSTRIAS CITRICOLAS DE MONTEMOREL | | | SCAC4 |
| 14 | ICIU | INTERMODAL CONTAINERS INC | | | PWRC |
| 15 | ICIU | Intermodal Containers | | | RSRV |
| 16 | ICIX | ICI Americas Inc. | added 10/1979; 1/1980-1/1994; eliminated 4/1996; 7/2000-7/2005 (not listed) | | NAKINA |
| 17 | ICIX | ICI United States Inc. | added 10/1974; 1/1975; eliminated 10/1979 | | NAKINA |
| 18 | ICIX | ICI America Inc. | added 4/1972; eliminated 10/1974 | | NAKINA |
| 19 | ICIX | ICI America Inc. | added 4/72 | | NRHS |
| 20 | ICIX | ICI United States Inc. | Jan-75 | | NRHS |
| 21 | ICIX | ICI Americas Inc. | 1/80-1/94; eliminated 4/96; 7/2000 | | NRHS |
| 22 | ICIX | ICI AMERICAS, INC. | | | PWRC |
| 23 | ICIX | ICI Americas | | | RSRV |
| 24 | ICIX | ICI AMERICAS, INC. | | | SCAC4 |
| 25 | ICIZ | INTERMODAL CONTAINER INC | | | PWRC |
| 26 | ICIZ | Intermodal Containers | | | RSRV |
| 27 | ICIZ | INTERMODAL CONTAINER INC | | | SCAC4 |
