| 101 | RECO | REITMANS TRNSPORTATION CO INC | | | SCAC3 |
| 102 | RECP | RECREATIONAL PRODUCTS TRANSPORTATIO | | | SCAC3 |
| 103 | RECP | REGIONAL CARRIERS INC | | | SCAC4 |
| 104 | RECQ | REISS, C COAL COMPANY, THE | | | SCAC3 |
| 105 | RECR | RYNO EXPRESS CORP | | | SCAC4 |
| 106 | RECSK | Recski Bányaüzem | | H | TRAFFIC |
| 107 | RECT | RECOTTA TRUCKING CO INC | | | SCAC3 |
| 108 | RECT | R E C TRUCKING INC | | | SCAC4 |
| 109 | RECU | Vertellus Specialities | | | RSRV |
| 110 | RECU | REILLY CHEMICALS S.A. | | | SCAC3 |
| 111 | RECU | REILLY INDUSTRIES INC | | | SCAC4 |
| 112 | RECUP | RECUPERI S.r.l. | | IT | VKM |
| 113 | RECW | RONELLE EXPEDITING CORP | | | SCAC4 |
| 114 | RECX | Central Louisiana Electric Co., Inc. | added 4/1981; 1/1994-7/2005 | | NAKINA |
| 115 | RECX | Central Louisiana Electric Co., Inc. | added 4/81; 1/94-7/2000 | | NRHS |
| 116 | RECX | CENTRAL LOUISIANA ELECTRIC CO. INC. | | | PWRC |
| 117 | RECX | Central Louisiana Electric | | | RSRV |
| 118 | RECX | CENTRAL LOUISIANA ELECTRIC CO. INC. | | | SCAC4 |
| 119 | RECY | RECYCLED ALUMINUM CO OF AMERICA INC | | | SCAC3 |
| 120 | RED | Comite International de La Croix-Rouge Red Cross (International Committee) | Callsign: Red Cross, Designator RX recalled by IATA. Non-airline Org. in airline industry | CH | AVCODES |
| 121 | RED | Comite International de La Croix-Rouge Red Cross (International Committee) | IATA: RX, Callsign: Red Cross, Designator RX recalled by IATA. Non-airline Org. in airline industry | CH | AVCODES |
| 122 | RED | International Committee of the Red Cross | | | ICAO1 |
| 123 | REDA | RED LINE TRANSPORTATION INC | | | SCAC4 |
| 124 | REDA | Lafarge Aggregates Limited | | UK | VKM |
| 125 | REDAP | Red Apple Transit | | USA | TRAFFIC |
| 126 | REDB | RED BALL EXPRESS | | | SCAC3 |
| 127 | REDC | REDWING CARRIERS, INC | | | SCAC3 |
| 128 | REDC | RED CARPET CONTAINER LINE | | | SCAC4 |
| 129 | REDD | REDDING DESPATCH | | | SCAC3 |
| 130 | REDE | REDE TRUCKING | | | SCAC3 |
| 131 | REDF | RED EAGLE SERVICES | | | SCAC3 |
| 132 | REDG | RED TRUCKING | | | SCAC3 |
| 133 | REDG | RED EAGLE EXPRESS | | | SCAC4 |
| 134 | REDG | Red Route Buses, Gravesend | | GB | TRAFFIC |
| 135 | REDH | REDHAGE TRUCK LINES INC | | | SCAC3 |
| 136 | REDH | RED HOT DELIVERIES | | | SCAC4 |
| 137 | REDI | R E D S | | | SCAC3 |
| 138 | REDJ | RED LETTER TRUCKING CO | | | SCAC3 |
| 139 | REDK | REDDICK AUTO EXPRESS INC | | | SCAC3 |
| 140 | REDK | RED K TRANSPORT INC | | | SCAC4 |
| 141 | REDL | RED LINE INC | | | SCAC3 |
| 142 | REDL | Red Line (Brickwood) | | GB | TRAFFIC |
| 143 | REDLINE | Redline Buses | | GB | TRAFFIC |
| 144 | REDM | REDMAN VAN AND STORAGE CO | | | SCAC3 |
| 145 | REDN | RED CARPET LIMOUSINE SERVICE | | | SCAC3 |
| 146 | REDN | RED TRANSPORTADORA NACIONAL DE CARG | | | SCAC4 |
| 147 | REDO | RED LINE TRANSPORT | | | SCAC3 |
| 148 | REDP | REDDING LUMBER TRANSPORT, INC | | | SCAC3 |
| 149 | REDP | REDDING LUMBER TRANSPORT INC | | | SCAC4 |
| 150 | REDQ | REDSHAW TRUCK SERVICE | | | SCAC3 |
| 151 | REDQ | REDTECH INC | | | SCAC4 |
| 152 | REDR | Red Rose of Aylesbury | | GB | TRAFFIC |
| 153 | REDROSE | Red Rose Transit Authority | | USA | TRAFFIC |
| 154 | REDROV | Red Rover | | GB | TRAFFIC |
| 155 | REDT | REDFORD TRUCK LINE | | | SCAC4 |
| 156 | REDTAN | Red & Tan | | USA | TRAFFIC |
| 157 | REDU | SITEBOX STORAGE | | USA | BIC |
| 158 | REDU | Sitebox Storage | | | RSRV |
| 159 | REDV | RED RIVER TRANSPORTATION | | | SCAC4 |
| 160 | REDW | REDWOOD EMPIRE TRANSPORTATION CO IN | | | SCAC3 |
| 161 | REDW | REDWOOD EMPIRE TRANSPORTATION CO IN | | | SCAC4 |
| 162 | REDX | Miron/U.S.A. Ltd. | added 1/1986; eliminated 7/1991; 1/1994-7/2005 (not listed) | | NAKINA |
| 163 | REDX | Miron/U.S.A. Ltd. | added 1/86; eliminated 7/91; 1/94-7/2000 | | NRHS |
| 164 | REDX | MIRON/USA LTD. | | | PWRC |
| 165 | REDX | Saudi Research and Development Corporation (REDEC) | | | RSRV |
| 166 | REDY | REDDY TRUCKING CO | | | SCAC3 |
| 167 | REDZ | *REDMOND INDUSTRY | | | PWRC |
| 168 | REDZ | *REDON, INC. | | | PWRC |
| 169 | REDZ | REDON Inc. | | | RSRV |
| 170 | REDZ | TRANSPORT INTERNATIONAL POOL INC | | | SCAC4 |
| 171 | REE | Aero Reservaciones Ejecutivas, S.A. de C.V. | Callsign: Aeroresvaciones, | MEX | AVCODES |
| 172 | REE | Regency Air Pvt. Ltd. | Callsign: Regency Aviation, | PK | AVCODES |
| 173 | REE | Exclusive Aviation | Callsign: Skyfall, | BS | AVCODES |
| 174 | REEA | RAMIREZ ELIZONDO, ERNESTINA | | | SCAC4 |
| 175 | REEB | REED BROTHERS | | | SCAC3 |
| 176 | REEB | REEB MILLWORK CORP | | | SCAC4 |
| 177 | REEC | REED TRUCKING COMPANY | | | SCAC4 |
| 178 | REEE | REES ENTERPRIZES INC | | | SCAC4 |
| 179 | REEF | REEFER TRUCK BROKERS INC | | | SCAC4 |
| 180 | REEG | REESE, GARY TRUCKING | | | SCAC3 |
| 181 | REEI | REA EXPRESS | | | SCAC3 |
| 182 | REEI | RECYCLING EXPRESS INC | | | SCAC4 |
| 183 | REEJ | REED, JOHN R INC | | | SCAC4 |
| 184 | REEK | REEK, IVAN, TRUCKING | | | SCAC3 |
| 185 | REEL | REESE TRANSPORTATION LLC | | | SCAC4 |
| 186 | REEN | REE NEWKIRK TRUCK LINE | | | SCAC3 |
| 187 | REEN | R E E ENTERPRISES INC | | | SCAC4 |
| 188 | REEO | REED OIL COMPANY INC | | | SCAC4 |
| 189 | REEP | RACINE, A & FILS LTEE | | | SCAC4 |
| 190 | REEQ | REESE TRUCKING | | | SCAC3 |
| 191 | REER | R E ENTERPRISES | | | SCAC3 |
| 192 | REES | REESMAN TRANSFER, INC | | | SCAC3 |
| 193 | REES | REESOR, PAUL TRANSPORT INC | | | SCAC4 |
| 194 | REET | REED TRUCKING COMPANY | | | SCAC3 |
| 195 | REEV | REEVES TRANSPORTATION COMPANY | | | SCAC3 |
| 196 | REEV | REEVES TRUCKING INC | | | SCAC4 |
| 197 | REEY | REED TRUCKING | | | SCAC3 |
| 198 | REF | Reguljair | IATA: R8, Callsign: Reguljair, Designator R8* recalled by IATA | S | AVCODES |
| 199 | REF | Reef Air Ltd. (Air Transport (Chatham Islands) Ltd) | Callsign: Reef Air, | NZ | AVCODES |
| 200 | REF | Reef Air | | | ICAO1 |
