| 1 | JR | Aero California | ICAO: SER, Callsign: Aerocalifornia, IATA Prefix: 078, | MEX | AVCODES |
| 2 | JR | Air Yugoslavia | ICAO: YRG, Callsign: Yugair, Designator JR recalled by IATA | YU | AVCODES |
| 3 | JR | Joy Air Co., Ltd. | ICAO: JOY, Callsign: Joy Air, IATA Prefix: 929, | PRC | AVCODES |
| 4 | JR | | | J | TRAFFIC |
| 5 | JR | Jumbo Rail GmbH | | DE | VKM |
| 6 | JRAD | JINSKY TRUCKING | | | SCAC4 |
| 7 | JRAE | J R TRUCKING | | | SCAC4 |
| 8 | JRAG | J R A FREIGHT INC | | | SCAC4 |
| 9 | JRAL | JAMAICA, RAFAEL | | | SCAC4 |
| 10 | JRAR | JR AUTO EXCHANGE | | | SCAC4 |
| 11 | JRAY | JOSAKY RIGGING INC | | | SCAC4 |
| 12 | JRB | JR Bus | | J | TRAFFIC |
| 13 | JRBC | JR Tokai Bus Company | | J | TRAFFIC |
| 14 | JRBCH | Chugoku JR Bus | | J | TRAFFIC |
| 15 | JRBH | JR Hokkaido Bus | | J | TRAFFIC |
| 16 | JRBK | J R BROKERAGE INC | | | SCAC4 |
| 17 | JRBK | JR Bus Kanto | | J | TRAFFIC |
| 18 | JRBKY | JR Kyushu Bus | | J | TRAFFIC |
| 19 | JRBL | JIMS REPAIR | | | SCAC4 |
| 20 | JRBT | J R B TARGET INC | | | SCAC4 |
| 21 | JRBT | JR Bus Tohuku | | J | TRAFFIC |
| 22 | JRBTECH | JR Bus Tech | Owned by JR Bus Kanto | J | TRAFFIC |
| 23 | JRBW | JAMES RIVER BARGE LINE LTD | | | SCAC4 |
| 24 | JRBW | West JR Bus | | J | TRAFFIC |
| 25 | JRC | Jetair Caribbean B.V. | IATA: 4J, | CUR | AVCODES |
| 26 | JRC | Central Japan Railway Company | | J | TRAFFIC |
| 27 | JRCB | J & J FREIGHT BROKERS LLC | | | SCAC4 |
| 28 | JRCD | JRC DEDICATED SERVICES COMPANY | | | SCAC4 |
| 29 | JRCE | JR CARRIER LLC | | | SCAC4 |
| 30 | JRCF | JR CARTAGE INC | | | SCAC4 |
| 31 | JRCG | JACK & RAY TRUCKING | | | SCAC4 |
| 32 | JRCH | JERICH INTERNATIONAL | | | SCAC4 |
| 33 | JRCJ | JRC TRANSPORTATION | | | SCAC4 |
| 34 | JRCM | J R C TRUCKING INC | | | SCAC4 |
| 35 | JRCN | JRC TRUCKING CO | | | SCAC4 |
| 36 | JRCR | J R C TRANSPORTATION INC | | | SCAC4 |
| 37 | JRCS | JARO TRANSPORTATION SERVICES INC | | | SCAC4 |
| 38 | JRCX | GLNX Corp. | added 10/1996; eliminated 7/2000; 7/2000 (not listed); added 10/2000; eliminated 4/2001; 7/2005 (not listed) | | NAKINA |
| 39 | JRCX | Jansen Rail Car, Inc. | added 7/1990; 1/1994; eliminated 7/1996 | | NAKINA |
| 40 | JRCX | Joplin Refining Co. | 7/1932 | | NAKINA |
| 41 | JRCX | Jansen Rail Car, Inc. | added 7/90; 1/94; eliminated 7/96 | | NRHS |
| 42 | JRCX | GLNX Corp. | added 10/96; 7/2000; eliminated 7/2000; added 10/2000; eliminated 4/2001 | | NRHS |
| 43 | JRCX | *JOPLIN REFINING CO. | | | PWRC |
| 44 | JRCX | *JANSEN RAILCAR, INC. | | | PWRC |
| 45 | JRCX | +(GLNX) GLNX CORPORATION | | | PWRC |
| 46 | JRCX | GLNX Corporation | | | RSRV |
| 47 | JRCZ | J. R. CHATHAM CO. | | | PWRC |
| 48 | JRDA | JUST RIDING AROUND LLC | | | SCAC4 |
| 49 | JRDG | JETTEN EXPRESS INC | | | SCAC4 |
| 50 | JRDH | J R DRILLING LTD | | | SCAC4 |
| 51 | JRDN | JORDAN & SON TRUCKING INC | | | SCAC4 |
| 52 | JRDO | JORDAN & JORDAN INC | | | SCAC4 |
| 53 | JRDP | JRD LOGISTICS CORP | | | SCAC4 |
| 54 | JRDS | JOINT CARRIER INC | | | SCAC4 |
| 55 | JRDU | J.TRAD CO.,LTD. | | J | BIC |
| 56 | JRDV | JACOBS, R D TRANSPORT LLC | | | SCAC4 |
| 57 | JRDX | J. & R. Dumas Inc. | 7/2005 (not listed) | | NAKINA |
| 58 | JRDX | J. & R. DUMAS, INC. | | | PWRC |
| 59 | JRDX | J & R DUMAS INC | | | SCAC4 |
| 60 | JRDY | JORDAN PRODUCTIONS INC | | | SCAC4 |
| 61 | JRE | Exclusive Jets, LLC | Callsign: Jet Share, Name change to LGM Enterprises, LLC t/a flyExclusive | USA | AVCODES |
| 62 | JRE | LGM Enterprises, LLC t/a flyExclusive | Callsign: Jet Share, Name change from Exclusive Jets, LLC | USA | AVCODES |
| 63 | JRE | JR East | | J | TRAFFIC |
| 64 | JREA | J R E TRANSPORTATION CORP | | | SCAC4 |
| 65 | JREC | J & R ENTERPRISES LLC | | | SCAC4 |
| 66 | JREF | JOHNSON, R REFRIGERATED TRUCKING SE | | | SCAC4 |
| 67 | JREL | JOHNSON, R ENTERPRISES LLC | | | SCAC4 |
| 68 | JREM | JONES, R E TRUCKING | | | SCAC4 |
| 69 | JRF | First Air Transport Co. Ltd. | | J | AVCODES |
| 70 | JRF | First Air Transport | | | ICAO1 |
| 71 | JRF | JR Freight | | J | TRAFFIC |
| 72 | JRFC | JORDAN, R F & SONS LLC | | | SCAC4 |
| 73 | JRFI | J R FURNITURE PLACE LTD | | | SCAC4 |
| 74 | JRFK | J & R FU TRUCKING LLC | | | SCAC4 |
| 75 | JRFL | JR'S FUELS | | | SCAC4 |
| 76 | JRFM | J & R FARMS TRANSPORTATION INC | | | SCAC4 |
| 77 | JRFN | JUTTE, RALPH FARMS INC | | | SCAC4 |
| 78 | JRFR | J & R FUEL OF LONG ISLAND CORP | | | SCAC4 |
| 79 | JRG | Freight On Wings CC | Callsign: Jooly Roger, | ZA | AVCODES |
| 80 | JRGA | JARUGA TRANS INC | | | SCAC4 |
| 81 | JRGE | JURGENS FARM SERVICE | | | SCAC4 |
| 82 | JRGQ | JRG TRANSPORT LLC | | | SCAC4 |
| 83 | JRGT | J & R TRUCKING | | | SCAC4 |
| 84 | JRH | J R Investments t/a Halsteds Aviation Corporation | Callsign: Bluetip, | ZW | AVCODES |
| 85 | JRH | JR Hokkaido | | J | TRAFFIC |
| 86 | JRHF | JRH FARMS LLC | | | SCAC4 |
| 87 | JRHG | J & R HAULING INC | | | SCAC4 |
| 88 | JRHL | J & R HAULING INC | | | SCAC4 |
| 89 | JRHT | J R TRUCKING | | | SCAC4 |
| 90 | JRI | Jetrider International | Callsign: Jetrider, ICAO designator changed from ARS | GB | AVCODES |
| 91 | JRI | Jetrider International | | | ICAO1 |
| 92 | JRIG | JASAR RECYCLING INC | | | SCAC4 |
| 93 | JRIH | J RANCH INC | | | SCAC4 |
| 94 | JRIP | JR TRANSPORTATION | | | SCAC4 |
| 95 | JRIT | J & R TRUCKING INC | | | SCAC4 |
| 96 | JRIV | James River Bus Lines | | USA | TRAFFIC |
| 97 | JRJG | J R J TRUCKING | | | SCAC4 |
| 98 | JRJK | JRJ TRUCKING LLC | | | SCAC4 |
| 99 | JRJL | JRJ LOGISTICS | | | SCAC4 |
| 100 | JRK | JR Kyushu | | J | TRAFFIC |
