| 1 | RE | Aer Arann Express (Comharbairt Gaillimh Teo) | ICAO: REA, Callsign: Aer Arann, IATA Prefix: 809, Name changed to Stobart Air. ICAO designator changed to STK. Operates as Aer Arann Express. Designator RE reinstated by IATA | IRL | AVCODES |
| 2 | RE | Americana de Aviacion, C.A. | Callsign: Amevia, | EC | AVCODES |
| 3 | RE | Stobart Air (Comhforbairt Gaillimh) | ICAO: STK, Callsign: Stobart, Ceased operations on 12 June 2021. Name changed from Cornharbairl Gaillimh Teo d/b/a Aer Arann. ICAO designator changed from REA w.e.f. 04 August 2014. Operates as Aer Arann Express. Designator RE reinstated by IATA | IRL | AVCODES |
| 4 | RE | Airhub Airlines Limited | ICAO: GJM, Callsign: Airhub, IATA Prefix: 521, IATA Designator changed from AH*. | M | AVCODES |
| 5 | RE | Rheinische Eisenbahn GmbH | Linz | D | privat-bahn.de |
| 6 | RE | Relco | | | RSRV |
| 7 | RE | Relco Locomotives Incorporated | | USA | TRAFFIC |
| 8 | RE | Rheinische Eisenbahn GmbH | | DE | VKM |
| 9 | REA | Aer Arann Express (Comharbairt Gaillimh Teo) | IATA: RE, Callsign: Aer Arann, IATA Prefix: 809, Name changed to Stobart Air. ICAO designator changed to STK. Operates as Aer Arann Express. Designator RE reinstated by IATA | IRL | AVCODES |
| 10 | REA | Aer Arann Teoranta | IATA: EH, Callsign: Aer Arann, Name changed to Aer Arann Express (Comharbairt Gaillimh Teo) | IRL | AVCODES |
| 11 | REA | Red Air S.r.l. | IATA: L5, Callsign: Red Dominicana, IATA Prefix: 377, | DOM | AVCODES |
| 12 | REA | Aer Arann | IATA: RE | | ICAO1 |
| 13 | REA | RAILWAY EXPRESS AGENCY, INC. | | | PWRC |
| 14 | REA | Reading RailRoad | | USA | TRAFFIC |
| 15 | REAA | RELOCATE AMERICA (DIV OF AUTO TRANS | | | SCAC3 |
| 16 | REAB | REDERI A/B SEA LINK | | | SCAC3 |
| 17 | REAB | RELIABELT, ELIAS | | | SCAC4 |
| 18 | REAC | REA TRAILERS INC | | | SCAC3 |
| 19 | REAC | REAGENT CHEMICAL & RESEARCH INC | | | SCAC4 |
| 20 | READ | REEDEREI FRANK DAHL EK | | | SCAC4 |
| 21 | REAF | Royal Egyptian Air Force | 1937 - 1952 | ET | TRAFFIC |
| 22 | REAG | RELIABLE EXPRESS LLC | | | SCAC4 |
| 23 | REAG | Red Eagle | | GB | TRAFFIC |
| 24 | REAH | ROFRA ENTERPRISES INC | | | SCAC4 |
| 25 | REAI | REESE ASSOCIATES INC | | | SCAC3 |
| 26 | REAJ | REA EXPRESS INC | | | SCAC3 |
| 27 | REAK | RE-ACT TRANSPORTATION INC | | | SCAC3 |
| 28 | REAL | (REAZ) TRANSAMERICA LEASING, INC. | | | PWRC |
| 29 | REALT | Real Transit Inc. | | US-NJ | TRAFFIC |
| 30 | REAM | R E D TECHNOLOGIES LLC | | | SCAC4 |
| 31 | REAN | REAMS TRANSFER & STORAGE COMPANY | | | SCAC3 |
| 32 | REAN | REINDERS, LINDA | | | SCAC4 |
| 33 | REAO | REA REFRIGERATED TRUCKING INC | | | SCAC3 |
| 34 | REAP | REALE, P, TRUCKING | | | SCAC3 |
| 35 | REAQ | REPUBLIC AIRMODAL INC | | | SCAC3 |
| 36 | REAQ | REEL MAN | | | SCAC4 |
| 37 | REAS | REAS EXPRESS | | | SCAC3 |
| 38 | REAS | REAL INDUSTRIES | | | SCAC4 |
| 39 | REAT | REAS TRANSPORTATION | | | SCAC3 |
| 40 | REAT | REAS TRANSPORTATION | | | SCAC4 |
| 41 | REAU | ANDRADE & SANTOS LOCACAO DE MODULOS E IMPORTAÇÃO LTDA | | BR | BIC |
| 42 | REAU | (REAZ) TRANSAMERICA LEASING, INC. | | | PWRC |
| 43 | REAU | TAL International | | | RSRV |
| 44 | REAU | ANDRADE & SANTOS LOCACAO DE MODULOS | | | SCAC4 |
| 45 | REAW | ROSMER ENTERPRISES INC | | | SCAC4 |
| 46 | REAX | Reaxcer AB | | S | TRAFFIC |
| 47 | REAY | RELAY EXPRESS | | | SCAC3 |
| 48 | REAY | RELAY EXPRESS INC | | | SCAC4 |
| 49 | REAZ | TRANSAMERICA LEASING, INC. | | | PWRC |
| 50 | REAZ | TIP Intermodal Services | | | RSRV |
| 51 | REAZ | TRANSAMERICA TRANSPORTATION SERVICE | | | SCAC3 |
| 52 | REAZ | TRANSPORT INTERNATIONAL POOL INC | | | SCAC4 |
| 53 | REB | Rebus | Callsign: Rebus, | BG | AVCODES |
| 54 | REB | Rebus | | | ICAO1 |
| 55 | REB | Rekers Betonwerk GmbH & Co. KG | | DE | VKM |
| 56 | REBA | RELIABLE CHARTER CORP | | | SCAC3 |
| 57 | REBB | REB TRUCKING INC | | | SCAC3 |
| 58 | REBB | REDS EXPRESS LLC | | | SCAC4 |
| 59 | REBC | REBCO SERVICES | | | SCAC3 |
| 60 | REBD | REDBIRD DEVELOPMENT CORP | | | SCAC3 |
| 61 | REBD | REPUBLIC SHIPPING CONSOLIDATORS | | | SCAC4 |
| 62 | REBE | RED BALL EXPRESS | | | PWRC |
| 63 | REBF | REBEL FORWARDING INC | | | SCAC3 |
| 64 | REBG | R E B TRANSPORTATION INC | | | SCAC3 |
| 65 | REBH | REBICH TRUCKING | | | SCAC3 |
| 66 | REBH | REMPEL, JOHN | | | SCAC4 |
| 67 | REBJ | R E B TRANSPORT INC | | | SCAC3 |
| 68 | REBJ | REBEL TRANSPORT INC | | | SCAC4 |
| 69 | REBK | R E B TRUCKING INC | | | SCAC4 |
| 70 | REBLE | Martin Reble Omnibusreisen | | D | TRAFFIC |
| 71 | REBM | REB TRANSPORTATION | | | SCAC3 |
| 72 | REBM | REMINGTON TRUCKING LLC | | | SCAC4 |
| 73 | REBN | REBANDA TRANSPORTATION, INC. | | | SCAC3 |
| 74 | REBN | R E B EXPRESS LLC | | | SCAC4 |
| 75 | REBO | R E BROS TRUCKING CO | | | SCAC3 |
| 76 | REBP | REBER TRANSPORT INC | | | SCAC3 |
| 77 | REBQ | RELIABLE TRANSFER CO | | | SCAC3 |
| 78 | REBR | REBER CORP | | | SCAC3 |
| 79 | REBS | RED EXPRESS BOX-TRUCK SERVICE INC | | | SCAC4 |
| 80 | REBV | REBEL VAN LINES INC | | | SCAC3 |
| 81 | REBV | REBEL VAN LINES INC | | | SCAC4 |
| 82 | REBY | RELIABLE EXPRESS DELIVERY LTD | | | SCAC4 |
| 83 | REC | Trans Reco | Callsign: Trans-Reco, | RIM | AVCODES |
| 84 | REC | Trans Reco | | | ICAO1 |
| 85 | REC | RELCO EQUIPMENT COMPANY | | | PWRC |
| 86 | RECA | REA CASTLE | | | SCAC3 |
| 87 | RECA | RECICLADORA CALIFORNIA | | | SCAC4 |
| 88 | RECB | RED CARPET TOURS INC | | | SCAC3 |
| 89 | RECC | READING TRUCKING AND CARTAGE COMPAN | | | SCAC3 |
| 90 | RECD | REED OIL CO INC | | | SCAC4 |
| 91 | RECE | REED, CHARLES E | | | SCAC3 |
| 92 | RECE | REFRIGERATED EXPRESS LC | | | SCAC4 |
| 93 | RECF | REED, CLIFF INC | | | SCAC3 |
| 94 | RECG | REFRIGERATED INTERNATIONAL CARGO HA | | | SCAC3 |
| 95 | RECI | RECO TRANSPORTATION INC | | | SCAC3 |
| 96 | RECI | RECO TRANSPORTATION OF SOUTH CAROLI | | | SCAC4 |
| 97 | RECJ | RESHMIS BOUTIQUE | | | SCAC4 |
| 98 | RECK | RECK, JAMES TRUCKING | | | SCAC3 |
| 99 | RECL | RECYCLE INDUSTRIES INC | | | SCAC3 |
| 100 | RECM | REC CARTAGE INC | | | SCAC3 |
