| 101 | JACX | Johnstown America Corp. | added 7/92; 1/94-7/2000 | | NRHS |
| 102 | JACX | JOHNSTOWN AMERICA CORPORATION | | | PWRC |
| 103 | JACX | Johnstown America Corporation | | | RSRV |
| 104 | JACX | JOHNSTOWN AMERICA CORPORATION | | | SCAC4 |
| 105 | JACY | JASON MARITIME INC | | | SCAC4 |
| 106 | JAD | Aerojal, S.A. de C.V. | Callsign: Aerojal, | MEX | AVCODES |
| 107 | JAD | Air Arabia Jordan | IATA: 9P, Callsign: Arabia Jordan, Ceased operatsions during April 2018. Joint venture between Air Arabia/RUM Group. Commenced operations on 19 May 2015. Name changed from Petra Airlines. ICAO Designator changed from PTR. | JOR | AVCODES |
| 108 | JAD | Aerojal | | | ICAO1 |
| 109 | JADD | JAMED DE MEXICO SA DE CV | | | SCAC4 |
| 110 | JADE | JADE LINE HOLDINGS LTD | | | SCAC4 |
| 111 | JADF | JADE EXPRESS INC | | | SCAC4 |
| 112 | JADN | JADEN 2005 LIMITED | | | SCAC4 |
| 113 | JADP | J A D POWER TRANSPORT INC | | | SCAC4 |
| 114 | JADR | J A D E TRUCKING INC | | | SCAC4 |
| 115 | JADT | J A D TRANSPORT CORP | | | SCAC4 |
| 116 | JADU | JAYDEX CONTAINERS PTE LTD. | | SGP | BIC |
| 117 | JADV | JADE TRANSPORTATION SERVICES | | | SCAC4 |
| 118 | JADX | Hellerworx, Inc. | 7/2005 (not listed) | | NAKINA |
| 119 | JADX | HELLERWORX, INC. | | | PWRC |
| 120 | JADX | HELLERWORX INC | | | SCAC4 |
| 121 | JAE | Jade Cargo International Company Limited | IATA: JI, Callsign: Jade Cargo, IATA Prefix: 189, Founded in 2004. Ceased operations on 31 December 2011. Joint venture between Shenzhen Airlines and Lufthansa Cargo | PRC | AVCODES |
| 122 | JAE | Jade Cargo International | | | ICAO1 |
| 123 | JAE | Jade Cargo International | | PRC | TRAFFIC |
| 124 | JAEB | JASON EXPRESS, INC | | | SCAC1 |
| 125 | JAEB | JASON EXPRESS INC | | | SCAC4 |
| 126 | JAEF | JAE FOREST LOGGING LLC. | | | SCAC4 |
| 127 | JAEG | JAMISON ENERGY | | | SCAC4 |
| 128 | JAEK | JAEKEL, GEO INC | | | SCAC4 |
| 129 | JAEW | JAEGLE, WILLIAM J | | | SCAC4 |
| 130 | JAEY | JAELYN CORPORATION | | | SCAC4 |
| 131 | JAF | Jetalliance Flugbetriebs AG | Callsign: Jetalliance, ICAO designator changed to JAG | A | AVCODES |
| 132 | JAF | TUI Airlines Belgium S.A/N.V. t/a Jetairfly | IATA: TB, Callsign: Beauty, Name changed to TUI Airlines Belgium NV t/a TUI fly Belgium w.e.f. 19 October 2016. Name changed from TUI Airlines Belgium. ICAO code changed from TUB w.e.f. 31 October 2006. | B | AVCODES |
| 133 | JAF | TUI Airlines Belgium NV t/a TUI fly Belgium | IATA: TB, Callsign: Beauty, Name changed from TUI Airlines Belgium t/a Jetairfly w.e.f. 19 October 2016. Name changed from TUI Airlines Belgium. ICAO code changed from TUB w.e.f. 31 October 2006. | B | AVCODES |
| 134 | JAF | Jetairfly | IATA: JF | | ICAO1 |
| 135 | JAFD | JOES AIB FREIGHT PICKUP & | | | SCAC4 |
| 136 | JAFE | JAFETT SHIPPING INC | | | SCAC4 |
| 137 | JAFG | J & A FREIGHT SYSTEMS INC | | | SCAC4 |
| 138 | JAFI | J A FRATE INC | | | SCAC4 |
| 139 | JAFN | JAF (DIV OF TFI TRANSPORT 3) | | | SCAC4 |
| 140 | JAFR | JAGUAR FREIGHT SERVICES | | | SCAC4 |
| 141 | JAFX | J.A. LaFortune | 7/1930-4/1947 | | NAKINA |
| 142 | JAFX | J.A. LaFortune | Apr-38 | | NRHS |
| 143 | JAFX | J.A. LAFORTUNE | | | PWRC |
| 144 | JAG | Jetag AG | Callsign: Jetag, | CH | AVCODES |
| 145 | JAG | Jetalliance Flugbetriebs AG | Callsign: Jetalliance, Founded in 1996. Ceased operations in 2013. ICAO designator changed from JAF | A | AVCODES |
| 146 | JAG | Jetair, Luftfahrt-Verwaltungsgellschaft | IATA: JA, Callsign: Jetair, | D | AVCODES |
| 147 | JAG | Jetalliance | | | ICAO1 |
| 148 | JAGB | J A G TRANSPORTATION | | | SCAC4 |
| 149 | JAGC | JAG FUELS COMPANY INC | | | SCAC4 |
| 150 | JAGF | J A G FREIGHT SYSTEMS LLC | | | SCAC4 |
| 151 | JAGH | JAG LOGISTICS LLC | | | SCAC4 |
| 152 | JAGJ | JAG TRANSPORT INC | | | SCAC4 |
| 153 | JAGM | JAGUAR MFG | | | SCAC4 |
| 154 | JAGR | JAG TRUCKING INC | | | SCAC4 |
| 155 | JAGX | J.A. Garfield | added 7/1953; 7/1954-10/1966; eliminated 7/1967 | | NAKINA |
| 156 | JAGX | J.A. Garfield | 10/57-10/66; eliminated 7/67 | | NRHS |
| 157 | JAGX | J.A. GARFIELD | | | PWRC |
| 158 | JAGY | J A GARVEY TRANSPTN INC | | | PWRC |
| 159 | JAHG | J & A HOLDINGS LLP | | | SCAC4 |
| 160 | JAHI | J AND H LOGISTICS INC | | | SCAC4 |
| 161 | JAHL | JAHN TRANSFER, INC | | | SCAC1 |
| 162 | JAHL | JAHN TRANSFER INC | | | SCAC4 |
| 163 | JAHU | CONTAINER STORE SPA | | RCH | BIC |
| 164 | JAI | Jet Airways (India) Private Limited | IATA: 9W, Callsign: Jet Airways, IATA Prefix: 589, Name changed to Jet Airways (India) Limited | IND | AVCODES |
| 165 | JAI | Jet Airways (India) Limited | IATA: 9W, Callsign: Jet Airways, IATA Prefix: 589, Temporarily suspended operations on 17 April 2019. Name changed from Jet Airways (India) Private Limited | IND | AVCODES |
| 166 | JAI | Jet Airways | IATA: 9W | | ICAO1 |
| 167 | JAIC | JASMIN INTERNATIONAL CORP | | | SCAC4 |
| 168 | JAIE | JARDINS AMAZONE INC | | | SCAC4 |
| 169 | JAIR | | Real: JLJ, XM | | TRAFFIC |
| 170 | JAIX | JAIX Leasing Co. | added 1/1996; 7/2000-7/2005 | | NAKINA |
| 171 | JAIX | JAIX Leasing Co. | added 1/96; 7/2000 | | NRHS |
| 172 | JAIX | JAIX LEASING CORPORATION | | | PWRC |
| 173 | JAIX | JAIX Leasing Corporation | | | RSRV |
| 174 | JAIX | JAIX LEASING COMPANY | | | SCAC4 |
| 175 | JAJC | JOHNSON AND JOHNSON CARTAGE INC | | | SCAC4 |
| 176 | JAJE | JAJES TRUCKING INC | | | SCAC4 |
| 177 | JAJH | JANISCH, J H | | | SCAC4 |
| 178 | JAJK | JAJ TRUCKING LLC | | | SCAC4 |
| 179 | JAJO | JAMES & JORDAN TRUCKING | | | SCAC4 |
| 180 | JAJT | J A J TRANSPORTATION INC | | | SCAC4 |
| 181 | JAK | Jana-Arka | Callsign: Yanzar, | KZ | AVCODES |
| 182 | JAK | Jana-Arka | | | ICAO1 |
| 183 | JAKI | JAKI EXPRESS | | | SCAC4 |
| 184 | JAKK | JAK TRANSIT INC | | | SCAC4 |
| 185 | JAKQ | JACKSON MOVING & STORAGE | | | SCAC4 |
| 186 | JAKR | JAKS CONTINENTAL TRANSPORT INC | | | SCAC4 |
| 187 | JAKS | JACKS SALVAGE | | | SCAC4 |
| 188 | JAKU | JAK MARITIME & LOGISTICS INDIA PVT. LTD | | IND | BIC |
| 189 | JAKV | JOHNS, AVERITT TRUCKING / AJT DISPA | | | SCAC4 |
| 190 | JAKY | J & A TRUCKING | | | SCAC4 |
| 191 | JAL | Japan Airlines Company Ltd. | IATA: JL, Callsign: Japanair, IATA Prefix: 131, Name changed from Japan Air Lines Company Ltd. Then changed to Japan Airlines International Co. Ltd. | J | AVCODES |
| 192 | JAL | Japan Air Lines Company Ltd. (JAL) | IATA: JL, Callsign: Japanair, IATA Prefix: 131, Name changed to Japan Airlines Company Ltd. | J | AVCODES |
| 193 | JAL | Japan Airlines International Co. Ltd. | IATA: JL, Callsign: Japanair, IATA Prefix: 131, Name changed from Japan Airlines Company Ltd w.e.f. 31 March 2004. | J | AVCODES |
| 194 | JAL | Japan Airlines Domestic | IATA: JL | | ICAO1 |
| 195 | JAL | Japan Airlines | IATA: JL | | ICAO1 |
| 196 | JAL | Japan Airlines | | J | TRAFFIC |
| 197 | JALG | JALAG TRUCKING | | | SCAC4 |
| 198 | JALI | J & A LOGISTIC | | | SCAC4 |
| 199 | JALN | J A LOGISTICS INC | | | SCAC4 |
| 200 | JALP | J & A LOGISTICS | | | SCAC4 |
