| 1401 | IISU | INTERTRADE INTERNATIONAL SERVICES | | CH | BIC |
| 1402 | IISX | I.I. Selig & Sons Ltd. | added 10/1968; 4/1970; eliminated 10/1970 | | NAKINA |
| 1403 | IISX | I.I. Selig & Sons Ltd. | added 10/68; 4/70; eliminated 10/70 | | NRHS |
| 1404 | IISX | I.I. SELIG & SONS LTD. | | | PWRC |
| 1405 | IITN | INTERSTATE INTERMODAL TRANSPORT INC | | | SCAC4 |
| 1406 | IITR | INTERNATIONAL TRANSPORT SERVCES LLC | | | SCAC4 |
| 1407 | IIZ | ISSAQUAH INDUSTRY | | | PWRC |
| 1408 | IJ | AOM-Minerve S.A. t/a Air Liberte | ICAO: LIB, Callsign: Air Liberte, IATA Prefix: 718, Name changed to Air Lib. IATA changed from VD. Name changed from Air Liberte | F | AVCODES |
| 1409 | IJ | TAT European Airlines | ICAO: TAT, Callsign: TAT, IJ prefix transfered to Air Liberte - Ops under TA | F | AVCODES |
| 1410 | IJ | Air Liberte | ICAO: LIB, Callsign: Air Liberte, IATA Prefix: 718, Name changed to AOM-Minerve S.A. t/a Air Liberte. IATA changed from VD | F | AVCODES |
| 1411 | IJ | Touraine Air Transport | | F | AVCODES |
| 1412 | IJ | Great Wall Airlines Company Limited | ICAO: GWL, Callsign: Great Wall, IATA Prefix: 989, In the first half of 2011, the company was merged into China Cargo Airlines, together with another Cargo carrier Shanghai Airlines Cargo, which was the freight division of Shanghai Airlines. | PRC | AVCODES |
| 1413 | IJ | Spring Airlines Japan Co. Ltd. | ICAO: SJO, Callsign: Jey Spring, Name changed to Spring Japan Co., Ltd. | J | AVCODES |
| 1414 | IJ | Spring Japan Co. Ltd. | ICAO: SJO, Callsign: Jey Spring, Name changed from Spring Airlines Japan Co. Ltd. | J | AVCODES |
| 1415 | IJA | International Jet Aviation Services | Callsign: I-Jet, | USA | AVCODES |
| 1416 | IJA | International Jet Aviation Services | | | ICAO1 |
| 1417 | IJA | Imperial Japan Army | | J | TRAFFIC |
| 1418 | IJCU | IJ-CONTAINER APS | | DK | BIC |
| 1419 | IJCU | IJ-CONTAINER APS | | | SCAC4 |
| 1420 | IJE | Avijet, S.A. de C.V. | | MEX | AVCODES |
| 1421 | IJE | Ivoire Jet Express | Callsign: Ivoire Jet, | CI | AVCODES |
| 1422 | IJE | International Jet Aviation Services | Callsign: International Jet, | USA | AVCODES |
| 1423 | IJE | Ivoire Jet Express | | | ICAO1 |
| 1424 | IJM | International Jet Management GmbH | Callsign: Jet Management, | A | AVCODES |
| 1425 | IJM | IJM International Jet Management | | | ICAO1 |
| 1426 | IJN | Imperial Japan Navy | | J | TRAFFIC |
| 1427 | IJO | International Jet Services Limited | | GB | AVCODES |
| 1428 | IJOC | INTER-JET OCEAN TRANSPORT INC | | | SCAC4 |
| 1429 | IJS | Silvair, Inc. | | USA | AVCODES |
| 1430 | IJS | Silvair | | | ICAO1 |
| 1431 | IJSG | IJS GLOBAL INC | | | SCAC4 |
| 1432 | IJSM | I & J SYSTEMS | | | SCAC4 |
| 1433 | IJSU | IJSFABRIEK STROMBEEK NV | | B | BIC |
| 1434 | IJSU | IJSFABRIEK STROMBEEK NV | | | SCAC4 |
| 1435 | IJT | Interflight (Learjet) Ltd. | Callsign: Interflight, Bizjet operations | GB | AVCODES |
| 1436 | IJT | InteliJet Airways | IATA: IJ | | ICAO1 |
| 1437 | IJT | Interflight (Learjet) | | | ICAO1 |
| 1438 | IJTG | INDJARABIAN, TIGRAN TRUCKING | | | SCAC4 |
| 1439 | IJTK | I & J TRUCKING | | | SCAC4 |
| 1440 | IJTN | IRWIN, JOHN TRUCKING | | | SCAC4 |
| 1441 | IJTT | I & J TRANSPORT INC | | | SCAC4 |
| 1442 | IJW | InterJet West, Inc. | IATA: K8, Callsign: Jet West, | USA | AVCODES |
| 1443 | IK | IMAIR Airline | ICAO: ITX, Callsign: Improtex, IATA Prefix: 166, Founded in 1994. Ceased operations on 23 November 2009. | AZ | AVCODES |
| 1444 | IK | Tradewinds Airways Ltd. | ICAO: IKA, Callsign: Tradewinds, Ceased operatons 28 Septmber 1990. IATA designator changed from VS | GB | AVCODES |
| 1445 | IK | Kaya Airlines L.D.A. | ICAO: KYY, Callsign: Kamoz, Founded 1991 as Transairways. Rebranded as Kaya Airlines and resu,ed operations on 29 August 2011. | MOC | AVCODES |
| 1446 | IK | Ikar, LLC | ICAO: KAR, Callsign: Krasjet, IATA Prefix: 770, Founded on 15 June 1993. Name changed to Ikar, LLC t/a Pegas Fly. | RUS | AVCODES |
| 1447 | IK | Ikar, LLC t/a Pegas Fly | ICAO: KAR, Callsign: Krasjet, IATA Prefix: 770, Founded on 15 June 1993. IATA designator changed to EO. Name changed from Ikar, LLC. | RUS | AVCODES |
| 1448 | IK | Air Kiribati Limited | ICAO: AKL, Callsign: Air Kiribati, Founded on 01 April 1995. | KIR | AVCODES |
| 1449 | IK | Ikarusz | | H | TRAFFIC |
| 1450 | IKA | Air Company Itek-Air Ltd. | IATA: GI, Callsign: Itek-Air, IATA Prefix: 420, Founded in 1999. Ceased operations in 2010. | KS | AVCODES |
| 1451 | IKA | Tradewinds Airways Ltd. | IATA: IK, Callsign: Tradewinds, Ceased operatons 28 Septmber 1990. IATA designator changed from VS | GB | AVCODES |
| 1452 | IKA | Gorkha Airlines | IATA: G1, IATA code taken from website not confirmed by IATA | NEP | AVCODES |
| 1453 | IKA | Gorkha Airlines | IATA: G1 | | ICAO1 |
| 1454 | IKA | Itek Air | IATA: GI | | ICAO1 |
| 1455 | IKAG | Iserlohner Kreisbahn AG | City: Iserlohn | D | TRAFFIC |
| 1456 | IKAR | IKARUS MARINE LTD | | | SCAC4 |
| 1457 | IKASA | Ikasa Railway | Railway operation cancelled, now a bus company. | J | TRAFFIC |
| 1458 | IKAT | ICAT LOGISTICS INC | | | SCAC4 |
| 1459 | IKB | Ikarbus | | YU | TRAFFIC |
| 1460 | IKBL | IKB Leasing SR s.r.o. | | SK | VKM |
| 1461 | IKBT | ISKABEL TRANSPORT | | | SCAC4 |
| 1462 | IKCU | INTERPOOL | | | PWRC |
| 1463 | IKCU | Interpool | | | RSRV |
| 1464 | IKCU | KANSAS CITY SOUTHERN TRANSPORT, INC | | | SCAC3 |
| 1465 | IKDS | I & K DISTRIBUTORS | | | SCAC4 |
| 1466 | IKEK | IKES TRUCKING | | | SCAC4 |
| 1467 | IKET | IKE TRANSPORTATION INC | | | SCAC4 |
| 1468 | IKGC | INKA GROUP INC | | | SCAC4 |
| 1469 | IKK | IKI International Airlines | Callsign: Ikiair, | J | AVCODES |
| 1470 | IKK | IKI International Airlines | | | ICAO1 |
| 1471 | IKKU | SEACO SRL | | BDS | BIC |
| 1472 | IKKU | ICCU CONTAINERS, INC. | | | PWRC |
| 1473 | IKKU | ICCU Containers | | | RSRV |
| 1474 | IKKU | SEA CONTAINERS LTD | | | SCAC4 |
| 1475 | IKM | Aero Survey Ltd | Callsign: Ghana Survey, ICAO callsign changed to Easy Shuttle | GH | AVCODES |
| 1476 | IKM | Aero Survey Ltd | Callsign: Easy Shuttle, Name changed to Aero Survey Ltd t/a Starbow. ICAO callsign changed from Ghana Survey | GH | AVCODES |
| 1477 | IKM | Aero Survey Ltd t/a Starbow | IATA: S9, Callsign: Easy Shuttle, IATA Prefix: 759, Name changed from Aero Survey Ltd. ICAO callsign changed from Ghana Survey | GH | AVCODES |
| 1478 | IKM | Aero Survey | | | ICAO1 |
| 1479 | IKM | Aero Surveys Limited (Starbow Airlines) | | GH | TRAFFIC |
| 1480 | IKMC | IKE MANAGEMENT INC | | | SCAC4 |
| 1481 | IKMU | LLOYDS MARITIME & TRADING LIMITED | | UAE | BIC |
| 1482 | IKMU | LLOYDS MARITIME & TRADING LIMITED | | | SCAC4 |
| 1483 | IKN | Ikon GmbH | Callsign: Eekon, | D | AVCODES |
| 1484 | IKN | IKON FTO | | | ICAO1 |
| 1485 | IKNS | IKON BAJA SA DE CV | | | SCAC4 |
| 1486 | IKR | Ikaros DK | Callsign: Ikaros, | DK | AVCODES |
| 1487 | IKR | Ikaros DK | | | ICAO1 |
| 1488 | IKRO | IKAROS TRANSPORT CORP | | | SCAC4 |
| 1489 | IKSU | TRITON CONTAINER INTERNATIONAL LTD | | BM | BIC |
| 1490 | IKSU | (REAZ) TRANSAMERICA LEASING, INC. | | | PWRC |
| 1491 | IKSU | TAL International | | | RSRV |
| 1492 | IKSU | TRANSAMERICA ICS, INC. | | | SCAC3 |
| 1493 | IKSU | TRANSAMERICA LEASING INC | | | SCAC4 |
| 1494 | IKT | National Aircompany Sakha Avia | IATA: K7, Callsign: Sakha-Avia, IATA Prefix: 840, Designator K7 recalled by IATA | RUS | AVCODES |
| 1495 | IKT | National Aircompany Sakha Avia | IATA: K7, Callsign: Sakha-Avia, IATA Prefix: 840, Designator K7 reinstated by IATA | RUS | AVCODES |
| 1496 | IKT | National Aircompany Sakha Avia | Callsign: Sakha-Avia, Designator K7 recalled by IATA | RUS | AVCODES |
| 1497 | IKTL | I K TRUCKING LLC | | | SCAC4 |
| 1498 | IKXS | IKON TRANSPORTATION SERVICES INC | | | SCAC4 |
| 1499 | IKY | Intersky Ltd | Callsign: General Sky, Ceased Operations. | BG | AVCODES |
| 1500 | IKY | Intersky | | | ICAO1 |
