| 1 | JJ | TAM Linhas Aereas S.A. | ICAO: TAM, Callsign: TAM, IATA Prefix: 957, Name changed to TAM Linhas Aereas S.A. d/b/a LATAM Airlines Brasil. Name change from TAM - Transportes Aereos Meridionais S.A. | BR | AVCODES |
| 2 | JJ | Aviogenex | ICAO: AGX, Callsign: Genex, Ceased operations in Febraury 2015. ICAO callsign changed from Juliett Juliett | YU | AVCODES |
| 3 | JJ | Aviogenex | ICAO: AGX, Callsign: Juliett Juliett, ICAO callsign changed to Genex | YU | AVCODES |
| 4 | JJ | TAM Linhas Aereas S.A. d/b/a LATAM Airlines Brasil | ICAO: TAM, Callsign: TAM, IATA Prefix: 957, Name changed from TAM Linhas Aereas S.A. Name change from TAM - Transportes Aereos Meridionais S.A. | BR | AVCODES |
| 5 | JJ | Joliet Junction | | USA | TRAFFIC |
| 6 | JJA | Jeju Air Co. Ltd. | IATA: 7C, | ROK | AVCODES |
| 7 | JJA | Jeju Air | IATA: 7C | | ICAO1 |
| 8 | JJA | Jeju Air | | ROK | TRAFFIC |
| 9 | JJAB | J & J TRUCK LINES LLC | | | SCAC4 |
| 10 | JJAE | JONES, JUDY TRUCKING INC | | | SCAC4 |
| 11 | JJAF | J & J AIRFREIGHT TRUCKING CO INC | | | SCAC4 |
| 12 | JJAH | JJADE HAULING INC | | | SCAC4 |
| 13 | JJAL | JJ & A ALLIANCE LLC | | | SCAC4 |
| 14 | JJAN | JOHNSON, JAN OLD MASTER MODERN PRIN | | | SCAC4 |
| 15 | JJAP | J & J TRANSPORTATION | | | SCAC4 |
| 16 | JJAR | JOHNSON, J A TRUCKING | | | SCAC4 |
| 17 | JJAT | J & J TRUCKING BRANDON LLC | | | SCAC4 |
| 18 | JJAU | JINGJIANG ASIAN-PACIFIC LOGISTICS EQUIPMENT CO.,LTD. | | PRC | BIC |
| 19 | JJBC | J & J TRUCKING INC | | | SCAC4 |
| 20 | JJBO | JJB LOGISTIC | | | SCAC4 |
| 21 | JJBP | JJB EXPRESS | | | SCAC4 |
| 22 | JJBS | JONES, J BUILDERS LLC | | | SCAC4 |
| 23 | JJBY | JUSTICE, J B & | | | SCAC4 |
| 24 | JJCI | JJC TRANSPORT INC | | | SCAC4 |
| 25 | JJCK | J & J TRUCKING | | | SCAC4 |
| 26 | JJCN | J & J CARRIERS INC | | | SCAC4 |
| 27 | JJCP | JJ & C TRANSPORT | | | SCAC4 |
| 28 | JJCT | JOE & JANS CHARTER AND TOURS INC | | | SCAC4 |
| 29 | JJDL | J & J DELIVERY INC | | | SCAC4 |
| 30 | JJDN | JONES, JERRY D | | | SCAC4 |
| 31 | JJDR | JJD TRUCKING INC | | | SCAC4 |
| 32 | JJDS | JOHNSON, J DISTRIBUIDORES SA DE CV | | | SCAC4 |
| 33 | JJDT | J & J DISPATCH | | | SCAC4 |
| 34 | JJDU | ITEC ENGINEERING | | F | BIC |
| 35 | JJDW | J & J DRIVE AWAY INC | | | SCAC4 |
| 36 | JJEA | JUSTICE, JERRY EXCAVATING INC | | | SCAC4 |
| 37 | JJED | JJE EXPRESS TRUCKING | | | SCAC4 |
| 38 | JJEH | J & J EXHIBIT | | | SCAC4 |
| 39 | JJEJ | JUMPING JACK EXPRESS | | | SCAC4 |
| 40 | JJEO | JONES, JOHN E OIL CO INC | | | SCAC4 |
| 41 | JJEP | JOHNSON, J E TRANSPORT | | | SCAC4 |
| 42 | JJET | J & J EXPEDITING INC | | | SCAC4 |
| 43 | JJEU | JJ EXPRESS SERVICES SDN. BHD. | | MAL | BIC |
| 44 | JJEY | JACKSON, J E FUEL COMPANY LLC | | | SCAC4 |
| 45 | JJFA | JARRO, JON FINE ART | | | SCAC4 |
| 46 | JJFO | JENNINGS & JENNINGS FUEL OIL CO INC | | | SCAC4 |
| 47 | JJFQ | JENKINS, JOHN F & CO INC | | | SCAC4 |
| 48 | JJFU | JJ FORWARDER SL | | E | BIC |
| 49 | JJHA | HAINES, J J AND COMPANY INC | | | SCAC4 |
| 50 | JJHG | J & J HAULAGE | | | SCAC4 |
| 51 | JJHI | J & J HOLDINGS INC | | | SCAC4 |
| 52 | JJHO | J & J TRUCKING LLC | | | SCAC4 |
| 53 | JJIA | JIA JIA INTERNATIONAL MOVING INC | | | SCAC4 |
| 54 | JJIC | J & J INC | | | SCAC4 |
| 55 | JJIN | J & J INTERNATIONAL LLC | | | SCAC4 |
| 56 | JJIR | JEHOVAH-JIREH ENTERPRISES | | | SCAC4 |
| 57 | JJIU | JAYNES INVESTMENTS INC | | | SCAC4 |
| 58 | JJJB | JERUE, JOHN J TRUCK BROKER INC | | | SCAC4 |
| 59 | JJJI | JJJ TRANSPORT INC | | | SCAC4 |
| 60 | JJJK | JJJ TRUCKING | | | SCAC4 |
| 61 | JJJP | JARDINA, J J COMPANY | | | SCAC4 |
| 62 | JJJR | JJJ TRANSPORTATION | | | SCAC4 |
| 63 | JJJT | JERUE, JOHN J TRANSPORTATION INC | | | SCAC4 |
| 64 | JJJX | Legend Marketing Ltd. | added 4/2005; 7/2005 | | NAKINA |
| 65 | JJJX | JJ Rail Car Leasing Ltd. | added 1/1995; 7/2000; eliminated 4/2005 | | NAKINA |
| 66 | JJJX | JJ Rail Car Leasing Ltd. | added 1/95; 7/2000 | | NRHS |
| 67 | JJJX | LEGEND MARKETING LTD. [JJ RAIL CAR LEASING LIMITED] | | | PWRC |
| 68 | JJJX | JJ Railcar Leasing | | | RSRV |
| 69 | JJJX | LEGEND MARKETING LTD | | | SCAC4 |
| 70 | JJKG | J & J TRUCKING | | | SCAC4 |
| 71 | JJKI | J J TRUCKING LLC | | | SCAC4 |
| 72 | JJKL | J & J TRUCKING ENTERPRISES LLC | | | SCAC4 |
| 73 | JJKN | J AND J TRUCKING | | | SCAC4 |
| 74 | JJKQ | JONES, JACK, TRUCKING, INC | | | SCAC1 |
| 75 | JJKQ | JONES, JACK TRUCKING INC | | | SCAC4 |
| 76 | JJKS | J J K TRANSPORT | | | SCAC4 |
| 77 | JJKT | J & J TRUCKING INC | | | SCAC4 |
| 78 | JJKY | J & J TRANSPORTATION | | | SCAC4 |
| 79 | JJKY | Joutjärvi & Joutjärvi Ky | | FI | VKM |
| 80 | JJLA | J & J LINEHAUL | | | SCAC4 |
| 81 | JJLD | J.J.L. DISTRIBUTION SYSTEMS, INC | | | SCAC1 |
| 82 | JJLD | J J L DISTRIBUTION SYSTEMS INC | | | SCAC4 |
| 83 | JJLG | J & J LOG AND LUMBER CORP | | | SCAC4 |
| 84 | JJLK | JOHNSON, J & L TRUCKING | | | SCAC4 |
| 85 | JJLM | J & J LOGISTIC LLC | | | SCAC4 |
| 86 | JJLN | LANAHAN, J J, INC | | | SCAC3 |
| 87 | JJLN | J & J LEASING INC | | | SCAC4 |
| 88 | JJLO | JOHNSON & JOHNSON LOGISTICS | | | SCAC4 |
| 89 | JJLQ | J & J LOGISTIC | | | SCAC4 |
| 90 | JJM | Regional Geodata Air S.A. | Callsign: Geodata, | E | AVCODES |
| 91 | JJM | Regional Geodata Air | | | ICAO1 |
| 92 | JJMC | JJM CONSTRUCTION LTD | | | SCAC4 |
| 93 | JJMI | J & J MOTORING INC | | | SCAC4 |
| 94 | JJMN | J & J MACHINES | | | SCAC4 |
| 95 | JJMS | J & J MOVING & | | | SCAC4 |
| 96 | JJMT | JOHNSON, JIM TRUCKING LTD | | | SCAC4 |
| 97 | JJNG | J J TRUCKING | | | SCAC4 |
| 98 | JJOA | J & J OIL CO INC | | | SCAC4 |
| 99 | JJOL | J & J OIL COMPANY INC | | | SCAC4 |
| 100 | JJP | Jetstar Japan | IATA: GK, Callsign: Orange Liner, | J | AVCODES |
