| 1 | JS | Air Koryo | ICAO: KOR, Callsign: Air Koryo, IATA Prefix: 120, Name changed from Chosonmihang CAA of DPR of Korea | PRK | AVCODES |
| 2 | JS | Aeronaves del Sur, S.A. | | MEX | AVCODES |
| 3 | JS | Chosonmihang CAA of DPR opf Korea | Callsign: Juliett Sierra, | PRK | AVCODES |
| 4 | JS | Chosonmihang CAA of DPR of Korea | ICAO: CSM, Callsign: Juliett Sierra, ICAO designator changed to KCA | PRK | AVCODES |
| 5 | JS | Chosonmihang CAA of DPR of Korea | ICAO: KCA, Callsign: Juliett Sierra, ICAO designator changed frm CSM | PRK | AVCODES |
| 6 | JS | Chosonmihang CAA of DPR of Korea | ICAO: KCA, Callsign: Air Korea, Name changed to Air Koryo. ICAO designator changed frm CSM | PRK | AVCODES |
| 7 | JSA | Jetstar Asia Airways Pte Ltd | IATA: 3K, Callsign: Jetstar Asia, IATA Prefix: 375, | SGP | AVCODES |
| 8 | JSA | Jetstar Asia Airways | IATA: 3K | | ICAO1 |
| 9 | JSA | Jetstar Asia Airways | | SGP | TRAFFIC |
| 10 | JSAC | J & S TRANSPORT INC | | | SCAC4 |
| 11 | JSAD | JOEL & SONS TRUCKING | | | SCAC4 |
| 12 | JSAI | J & S ASSOCIATES INC | | | SCAC4 |
| 13 | JSAL | JSA TERMINALS, INC | | | SCAC1 |
| 14 | JSAM | JOHNSON STORAGE & MOVING CO LLC | | | SCAC4 |
| 15 | JSAO | J S AND SONS | | | SCAC4 |
| 16 | JSAP | JSA RUSH TRANSPORTATION SYSTEMS | | | SCAC1 |
| 17 | JSAT | J & S TRUCKING | | | SCAC4 |
| 18 | JSAV | JOHNSON STORAGE & MOVING CO (131) L | | | SCAC4 |
| 19 | JSAY | J S AERO DELIVERY | | | SCAC4 |
| 20 | JSBB | J & S BULK BROKERAGE INC | | | SCAC4 |
| 21 | JSBC | JAMES TRANSPORTATION | | | SCAC4 |
| 22 | JSBD | J S B TRUCKING | | | SCAC4 |
| 23 | JSBF | JONES-STAATS TRANSPORTATION LLC | | | SCAC4 |
| 24 | JSBI | J. S. B. TRUCKING, INC | | | SCAC1 |
| 25 | JSBI | J AND S TRUCKING | | | SCAC4 |
| 26 | JSBL | J & S BULK TRANSPORT CO INC | | | SCAC4 |
| 27 | JSBX | Dairy Shippers Despatch Co. | added 4/1963; eliminated 1/1964 | | NAKINA |
| 28 | JSBX | James S. Bent & Co., Inc. | 7/1935-7/1937 | | NAKINA |
| 29 | JSBX | JAMES S. BENT & CO., IMC. | | | PWRC |
| 30 | JSC | Airstan, Joint-Stock Aviation Company | Callsign: Airstan, | RUS | AVCODES |
| 31 | JSC | Jetstream Aviation Congo | Callsign: Congo River, | RCB | AVCODES |
| 32 | JSC | Johnstown and Stony Creek R.R. Co. | 1/1975-1/1980; eliminated 10/1983 | | NAKINA |
| 33 | JSC | Johnstown and Stony Creek R.R. Co. | 1/75-1/80; eliminated 10/83 | | NRHS |
| 34 | JSC | JOHNSTOWN & STONEY CREEK RAILROAD CO. | | | PWRC |
| 35 | JSCA | JESSICA TRANSPORT SERVICES INC | | | SCAC4 |
| 36 | JSCC | J S CARRIER CORP | | | SCAC4 |
| 37 | JSCC | Jersey Shore Commuter Club | | USA | TRAFFIC |
| 38 | JSCE | J S CARRIERS CORP | | | SCAC4 |
| 39 | JSCF | JIT STEEL CORPORATION | | | SCAC4 |
| 40 | JSCG | J & S CARTAGE INC | | | SCAC4 |
| 41 | JSCH | JOES SEAFOOD CORP | | | SCAC4 |
| 42 | JSCK | JONES, SCOTT KEITH | | | SCAC4 |
| 43 | JSCM | JABERO SALES COMPANY | | | SCAC4 |
| 44 | JSCO | J-STAR CONSOLIDATED INC | | | SCAC4 |
| 45 | JSCQ | JSC RIMSCO | | | SCAC4 |
| 46 | JSCR | JOHNSON & CURRIER TRUCKING CORPORAT | | | SCAC4 |
| 47 | JSCS | JSC YUGREFTRANSFLOT | | | SCAC4 |
| 48 | JSCT | J S C TRUCK LINES | | | SCAC4 |
| 49 | JSCU | JAKE STORAGE CONTAINERS LLC | | USA | BIC |
| 50 | JSCU | FLEXI-VAN LEASING, INC. | | | PWRC |
| 51 | JSCU | Flexi-Van Leasing | | | RSRV |
| 52 | JSCU | GENSTAR CONTAINER CORPORATION | | | SCAC4 |
| 53 | JSCW | JACAMAR SHIPPING CO LTD | | | SCAC4 |
| 54 | JSCX | Consumers Energy Co. | added 1/2007 | | NAKINA |
| 55 | JSCX | CONSUMERS ENERGY CO. | | | PWRC |
| 56 | JSCX | CONSUMERS ENERGY COMPANY | | | SCAC4 |
| 57 | JSCY | JSC TERMINAL LLC | | | SCAC4 |
| 58 | JSCZ | FLEXI-VAN LEASING, INC. | | | PWRC |
| 59 | JSCZ | Flexi-Van Leasing | | | RSRV |
| 60 | JSCZ | FLEXI-VAN LEASING, INC. | | | SCAC3 |
| 61 | JSCZ | FLEXI-VAN LEASING INC | | | SCAC4 |
| 62 | JSDI | J & S DURST INC | | | SCAC4 |
| 63 | JSDL | J & S DRAYAGE LLC | | | SCAC4 |
| 64 | JSDP | J S D TRANSPORT LTD | | | SCAC4 |
| 65 | JSDS | J & S DELIVERY SERVICES INC | | | SCAC4 |
| 66 | JSDT | JET SPEED TRANSPORT LTD | | | SCAC4 |
| 67 | JSDU | JUSDA ENERGY TECHNOLOGY (SHANGHAI) CO LTD | | PRC | BIC |
| 68 | JSE | Jets Y Servicios Ejecutivos, S.A. de C.V. | Callsign: Servijets, | MEX | AVCODES |
| 69 | JSE | Jets Y Servicios Ejecutivos | | | ICAO1 |
| 70 | JSEB | JSE TRUCKING LLC | | | SCAC4 |
| 71 | JSED | J & S EXPRESS | | | SCAC4 |
| 72 | JSEE | J & S ENTERPRISES | | | SCAC4 |
| 73 | JSEQ | J'S EQUINE TRANSPORT | | | SCAC4 |
| 74 | JSEU | SHIN ETSU CHEMICAL CO LTD | | J | BIC |
| 75 | JSEY | JERSEY CHAIR CO | | | SCAC4 |
| 76 | JSFD | JUGET-SINCLAIR FACTEURS D'ORGUES IN | | | SCAC4 |
| 77 | JSFW | JAS FORWARDING (USA) INC | | | SCAC4 |
| 78 | JSFZ | JEFFERSON SMURFIT | | | PWRC |
| 79 | JSGC | JONS GUIDE SERVICE | | | SCAC4 |
| 80 | JSGO | J & S GO4TRUK INC | | | SCAC4 |
| 81 | JSGQ | J.S.G. TRUCKING CO | | | SCAC1 |
| 82 | JSGQ | J S G TRUCKING CO INC | | | SCAC4 |
| 83 | JSGR | JASPER ENGINES & TRANSMISSIONS LTD | | | SCAC4 |
| 84 | JSH | Jetstream Air Ltd. | Callsign: Stream-Air, | H | AVCODES |
| 85 | JSH | Jet-Stream Ltd. | Callsign: Stream Air, | H | AVCODES |
| 86 | JSH | Jetstream Air | | | ICAO1 |
| 87 | JSHH | J & S HEAVY HAUL CORPORATION | | | SCAC4 |
| 88 | JSHK | J S H TRUCKING | | | SCAC4 |
| 89 | JSI | JSC Jet Air Group | Callsign: Sistema, | RUS | AVCODES |
| 90 | JSI | Jet Air Group | | | ICAO1 |
| 91 | JSIC | JOLLY SHIPPING INC | | | SCAC4 |
| 92 | JSIM | JUDD & SIMS INC | | | SCAC4 |
| 93 | JSIX | Jahncke Service, Inc. | added 1/1965; 7/1965-4/1970; eliminated 1/1974 | | NAKINA |
| 94 | JSIX | Jahncke Service, Inc. | added 1/65; 7/65-4/70; eliminated 1/74 | | NRHS |
| 95 | JSIX | JAHNCKE SERVICE, INC. | | | PWRC |
| 96 | JSIY | JOSIE TRANSPORT INC | | | SCAC4 |
| 97 | JSJ | JS Air (Private) Limited | Callsign: JS Charter, | PK | AVCODES |
| 98 | JSJ | JS Air | | | ICAO1 |
| 99 | JSJE | JSJ EXPRESS LLC | | | SCAC4 |
| 100 | JSJI | JOHNSON, S J INC | | | SCAC4 |
