| 1 | JL | Japan Airlines Company Ltd. | ICAO: JAL, Callsign: Japanair, IATA Prefix: 131, Name changed from Japan Air Lines Company Ltd. Then changed to Japan Airlines International Co. Ltd. | J | AVCODES |
| 2 | JL | Japan Air Lines Company Ltd. (JAL) | ICAO: JAL, Callsign: Japanair, IATA Prefix: 131, Name changed to Japan Airlines Company Ltd. | J | AVCODES |
| 3 | JL | Japan Airlines International Co. Ltd. | ICAO: JAL, Callsign: Japanair, IATA Prefix: 131, Name changed from Japan Airlines Company Ltd w.e.f. 31 March 2004. | J | AVCODES |
| 4 | JL | Jet Linx Aviation, LLC | ICAO: JTL, Callsign: Jet Linx, | USA | AVCODES |
| 5 | JL | *JAPAN LINE, LTD | | | PWRC |
| 6 | JL | *JONES & LAUGHLIN STEEL | | | PWRC |
| 7 | JL | JEFFERSON LINES | | | SCAC4 |
| 8 | JLA | Mia Airlines | Callsign: Salline, Ceased operations. | RO | AVCODES |
| 9 | JLA | Aero JL S.A. de C.V. | Callsign: Aero Joe, | MEX | AVCODES |
| 10 | JLA | MIA Airlines | | | ICAO1 |
| 11 | JLA | Jarocińskie Linie Autobusowe | City: Jarocin | PL | TRAFFIC |
| 12 | JLAA | JLV TRANSPORTATION LLC | | | SCAC4 |
| 13 | JLAC | JET LINE AIR CARGO | | | SCAC4 |
| 14 | JLAF | JL EXPRESS SA DE CV | | | SCAC4 |
| 15 | JLAH | JAPAN LINE, LTD | | | PWRC |
| 16 | JLAI | J L TRANSPORT OF HELENVILLE INC | | | SCAC4 |
| 17 | JLAL | JLA TRUCKING LLC | | | SCAC4 |
| 18 | JLAM | J LIM TRUCKING CORP | | | SCAC4 |
| 19 | JLAT | J-LAURITZEN (USA) INC | | | SCAC4 |
| 20 | JLAU | JAPAN LINE, LTD. | | | PWRC |
| 21 | JLAU | Japan Line | | | RSRV |
| 22 | JLAW | J-LAW TRANSPORT INC | | | SCAC4 |
| 23 | JLB | Jhonlin Air Transport, PT. | Callsign: Jhonlin, | RI | AVCODES |
| 24 | JLBA | JLB TRANSPORTATION INC | | | SCAC4 |
| 25 | JLBB | J L B TRUCKING LLC | | | SCAC4 |
| 26 | JLBC | JLB TRANSFER COMPANY | | | SCAC1 |
| 27 | JLBC | JAGUAR LOGISTICAL TRANSPORTATION | | | SCAC4 |
| 28 | JLBI | JLA TRANSPORT INC | | | SCAC4 |
| 29 | JLBK | JL BROKERS | | | SCAC4 |
| 30 | JLBN | JLB TRUCKING COMPANY INC | | | SCAC4 |
| 31 | JLBQ | J & B WHOLESALE DISTRIBUTING INC | | | SCAC4 |
| 32 | JLC | Angelic Air LLC | Callsign: Angelic, | USA | AVCODES |
| 33 | JLCG | JULRIC LOGISTICS LLC | | | SCAC4 |
| 34 | JLCL | JLC LOGISTICS | | | SCAC4 |
| 35 | JLCO | JACOBSON LOGISTICS COMPANY LLC (A D | | | SCAC4 |
| 36 | JLCP | JLC INTERNATIONAL SEAFOOD CORP | | | SCAC4 |
| 37 | JLCS | JILLION CORPORATION | | | SCAC4 |
| 38 | JLCU | HAMBURG SUED | | | SCAC4 |
| 39 | JLCX | Jackson Lumber Co. | 7/1923-7/1930 | | NAKINA |
| 40 | JLCX | *JACKSON LUMBER CO. | | | PWRC |
| 41 | JLCX | +564109 B.C., LTD. | | | PWRC |
| 42 | JLCX | FIVE SIX FOUR ONE ZERO NINE (564109 | | | SCAC4 |
| 43 | JLDU | SAS DELISLE JEAN-LOUIS | | F | BIC |
| 44 | JLDU | JAPAN LINE, LTD | | | PWRC |
| 45 | JLDU | Japan Line | | | RSRV |
| 46 | JLE | Jetline, Inc. | Callsign: Equajet, | GQ | AVCODES |
| 47 | JLEA | JIMS LEASING INC | | | SCAC4 |
| 48 | JLEI | JENNINGS, LEE, ENTERPRIZES, INC | | | SCAC1 |
| 49 | JLEI | JENNINGS, LEE TARGET EXPRESS INC | | | SCAC4 |
| 50 | JLEK | J L E TRUCKING LLC | | | SCAC4 |
| 51 | JLET | JOHNSON, L E TRANSPORT LLC | | | SCAC4 |
| 52 | JLEU | JAPAN LINE, LTD | | | PWRC |
| 53 | JLEU | Japan Line | | | RSRV |
| 54 | JLEZ | JAPAN LINE, LTD | | | PWRC |
| 55 | JLEZ | Japan Line | | | RSRV |
| 56 | JLF | Jetline Fluggesellschaft mbH & Co. KG | Callsign: Cavallo, On 2 March 2010, the District Court of Esslingen opened bankruptcy proceedings. | D | AVCODES |
| 57 | JLF | International Air Charters, Inc. | Callsign: Jetlyft, | USA | AVCODES |
| 58 | JLFB | J & L FREIGHT BROKERAGE LLC | | | SCAC4 |
| 59 | JLFC | J & L FABRICATING | | | SCAC4 |
| 60 | JLFG | JONES, LEON FEED & GRAIN INC | | | SCAC4 |
| 61 | JLFH | JL FREIGHT | | | SCAC4 |
| 62 | JLG | Jet Logistics, Inc. | Callsign: Logistics, | USA | AVCODES |
| 63 | JLGD | JT LEGEND TRUCKING INC | | | SCAC4 |
| 64 | JLGU | JLG CONTAINER SERVICES CO., LIMITED | | HK | BIC |
| 65 | JLH | Jetlink Holland | Founded in 1991. Declared bankrupt in June 2000. | NL | AVCODES |
| 66 | JLH | Jet Link Cargo Airline | IATA Prefix: 712, Ceased operations in 2015. | NL | AVCODES |
| 67 | JLH | Centro de Servicio Aeronautico, S.A. de C.V. | Callsign: Cesa, | MEX | AVCODES |
| 68 | JLH | Jetlink Holland | | | ICAO1 |
| 69 | JLHU | JAPAN LINE, LTD. | | | PWRC |
| 70 | JLHU | Japan Line | | | RSRV |
| 71 | JLHX | Jake L. Hamon | 8/1920 | | NAKINA |
| 72 | JLHX | Estate of Jake L. Hamon | 7/1923 | | NAKINA |
| 73 | JLHX | JAKE L. HARMON ESTATE | | | PWRC |
| 74 | JLIB | JLC LOGISTICS INC | | | SCAC4 |
| 75 | JLID | JEWEL LIMITED | | | SCAC4 |
| 76 | JLIE | JLI TRANSPORTATION INC | | | SCAC4 |
| 77 | JLIF | JLS LOGISTICS INC | | | SCAC4 |
| 78 | JLIG | JOHAL LOGISTICS INC | | | SCAC4 |
| 79 | JLII | J L | | | SCAC4 |
| 80 | JLIK | JERKE LIVESTOCK INC | | | SCAC4 |
| 81 | JLIL | J & L INTERNATIONAL LLC | | | SCAC4 |
| 82 | JLIN | JOLIN, BERNARD | | | SCAC4 |
| 83 | JLIO | JARTIE LOGISTICS INC | | | SCAC4 |
| 84 | JLIP | JERICHO LOGISTICS INCORPORATED | | | SCAC4 |
| 85 | JLIQ | JERICHO LOGISTICS INC | | | SCAC4 |
| 86 | JLIR | JAS LOGISTICS INC | | | SCAC4 |
| 87 | JLIT | JETX LOGISTICS INC | | | SCAC4 |
| 88 | JLIU | JOSEF LINDBERG SANDARNE AB | | S | BIC |
| 89 | JLIU | JOSEF LINDBERG SANDARNE AB | | | SCAC4 |
| 90 | JLIW | JTI LOGISTICS INC | | | SCAC4 |
| 91 | JLIY | JACKY LINES INC | | | SCAC4 |
| 92 | JLJ | Japan Airlines Domestic Co. Ltd. | Callsign: J-Bird, | J | AVCODES |
| 93 | JLJ | Noble Air Charter | Callsign: Highborn, | USA | AVCODES |
| 94 | JLJ | Johannisberg - Ljungaverk Järnväg | 1912 - | S | svenska-lok.se |
| 95 | JLJ | Japan Airlines Domestic Co. Ltd. | | J | TRAFFIC |
| 96 | JLK | Jet-Link AG | | CH | AVCODES |
| 97 | JLKA | J L TRUCKING | | | SCAC4 |
| 98 | JLKI | JLK GLOBAL INC | | | SCAC4 |
| 99 | JLKN | J & L TRUCKING | | | SCAC4 |
| 100 | JLKR | J & L TRUCKING | | | SCAC4 |
