| 101 | GAB | Gendall Air Ltd. | Callsign: Gendall, | CDN | AVCODES |
| 102 | GAB | Aerobell Airlines | Callsign: Cali, | CR | AVCODES |
| 103 | GAB | Gendall Air | | | ICAO1 |
| 104 | GABC | GAB TRANSPORT INC | | | SCAC4 |
| 105 | GABD | GANEM VARGAS, JUAN RAMON | | | SCAC4 |
| 106 | GABE | GABERT, JACK | | | SCAC4 |
| 107 | GABK | GASPER-ATKINSON BULK DIVISION INC | | | SCAC4 |
| 108 | GABL | GABELINE TRUCKING | | | SCAC4 |
| 109 | GABN | GAMBRINUS TRUCKING CO INC | | | SCAC4 |
| 110 | GABON | Trans-Gabon Railway | | G | TRAFFIC |
| 111 | GABS | GABELINE, W T & SONS LLC | | | SCAC4 |
| 112 | GABU | GABO GAS 2 SAS DI GALVA GNI EVALTIE | | | SCAC4 |
| 113 | GABW | Go-ahead Baden-Württemberg GmbH | | D | TRAFFIC |
| 114 | GABX | General American Marks Co. | 7/2000-7/2005 | | NAKINA |
| 115 | GABX | General American Transportation Corp. | 1/1946-4/1961; eliminated 10/1962 | | NAKINA |
| 116 | GABX | General American Transportation Corp. —temporary expiring 30June1941 | 1/1941 | | NAKINA |
| 117 | GABX | General American Transportation Corp. | 1/52-4/61 | | NRHS |
| 118 | GABX | General American Marks Co. | Jul-00 | | NRHS |
| 119 | GABX | GENERAL AMERICAN MARKS COMPANY | | | PWRC |
| 120 | GABX | General American Marks (GATX Corporation) | | | RSRV |
| 121 | GABX | GENERAL AMERICAN MARKS COMPANY | | | SCAC4 |
| 122 | GABY | GABY VENTURES LTD | | | SCAC4 |
| 123 | GAC | General Air Cargo G.A.C. | Callsign: General Cargo, | YV | AVCODES |
| 124 | GAC | GlobeAir AG | Callsign: Dream Team, | A | AVCODES |
| 125 | GAC | Guangzhou Automobile Corporation | | PRC | TRAFFIC |
| 126 | GACF | GARAGE A CHAMBERLAND & FILS | | | SCAC4 |
| 127 | GACG | GERDAU AMERISTEEL CORPORATION | | | SCAC4 |
| 128 | GACH | GATLINGS CHARTER INC | | | SCAC4 |
| 129 | GACI | GT TRANSPORT | | | SCAC4 |
| 130 | GACK | GAC SHIPPING (USA) INC | | | SCAC4 |
| 131 | GACN | GARDNER TRUCKING | | | SCAC4 |
| 132 | GACO | GATECO OIL COMPANY | | | SCAC4 |
| 133 | GACR | G A C TRANSCO INC | | | SCAC4 |
| 134 | GACT | GANTT, CHARLES TRUCKING INC | | | SCAC4 |
| 135 | GACU | ABODI | | E | BIC |
| 136 | GACU | CONTENEDORES DE GALICIA SA | | | SCAC3 |
| 137 | GACU | COMERCIAL ABODI SA | | | SCAC4 |
| 138 | GACV | GREEN ASSOCIATES LOGISTICS INC | | | SCAC4 |
| 139 | GACW | GET AWAY CHARTERS | | | SCAC4 |
| 140 | GACX | General American Marks Co. | added 1/1998; 7/2000-7/2005 | | NAKINA |
| 141 | GACX | General American Transportation Corp. | 7/1937-1/1994; eliminated 1/1998 | | NAKINA |
| 142 | GACX | General American Transportation Corp. | 4/38-1/94; eliminated 1/98 | | NRHS |
| 143 | GACX | General American Marks Co. | added 1/98; 7/2000 | | NRHS |
| 144 | GACX | GENERAL AMERICAN MARKS CO. [{GENERAL AMERICAN TRANSPORTATION CORP.] | | | PWRC |
| 145 | GACX | General American Marks (GATX Corporation) | | | RSRV |
| 146 | GACX | General American Marks Company | | USA | TRAFFIC |
| 147 | GAD | South Coast Airways Ltd. | Callsign: Southcoast, Name changed to South Coast Aviation (Bournemouth) Ltd. | GB | AVCODES |
| 148 | GAD | South Coast Aviation (Bournemouth) Ltd. | Callsign: Southcoast, Name changed from South Coast Airways Ltd. | GB | AVCODES |
| 149 | GAD | South Coast Aviation | | | ICAO1 |
| 150 | GADC | GALA LIVESTOCK LOGISTICS INC | | | SCAC4 |
| 151 | GADI | GARCIA COTA, JORGE LUIS | | | SCAC4 |
| 152 | GADJ | GADOLA, J & J TRUCKING | | | SCAC4 |
| 153 | GADL | G & D INTEGRATED INC | | | SCAC4 |
| 154 | GADN | GADSDEN TRUCKING LLC | | | SCAC4 |
| 155 | GADO | GT A DIVISION OF | | | SCAC4 |
| 156 | GADQ | GALE DELIVERY, INC | | | SCAC1 |
| 157 | GADU | MARINE ANTIPOLLUTION ENTERPRISE JSCO | | BG | BIC |
| 158 | GADX | SAB Trucking Inc. | 7/2005 (not listed) | | NAKINA |
| 159 | GADX | *GENERAL AMERICAN MARKS COMPANY [PILLSBURY] | | | PWRC |
| 160 | GADX | +SAB TRUCKING INC. | | | PWRC |
| 161 | GADX | SAB TRUCKING INC | | | SCAC4 |
| 162 | GAE | Grand Aire Express, Inc. | Callsign: Grand Express, | USA | AVCODES |
| 163 | GAE | Shenzhen Gulf Aviation Co., Ltd. | Callsign: Gulf Aviation, | PRC | AVCODES |
| 164 | GAE | Grand Aire Express | | | ICAO1 |
| 165 | GAEE | GAONA ARTEAGA, MARTIN | | | SCAC4 |
| 166 | GAEI | GARLAND TRANSPORT | | | SCAC4 |
| 167 | GAEK | GAD TRANSPORT | | | SCAC4 |
| 168 | GAEL | GUALOZ TRUCKING | | | SCAC4 |
| 169 | GAEO | G NADEAU EXPRESS INC | | | SCAC4 |
| 170 | GAEP | GRUPO 15 AUTO EXPRESS SA DE CV | | | SCAC4 |
| 171 | GAER | GRABER TRUCKING INC | | | SCAC4 |
| 172 | GAET | GAETANO, P L TRANSPORTATION INC | | | SCAC4 |
| 173 | GAEU | TEXTAINER EQUIPMENT MANAGEMENT LTD | | BM | BIC |
| 174 | GAEU | GATEWAY MANAGEMENT SERVICES LIMITED | | | SCAC4 |
| 175 | GAEX | General American Marks Co. | 7/2000; added 10/2000; 7/2005 | | NAKINA |
| 176 | GAEX | General American Transportation Corp. | added 4/1962; 7/1965-1/1980; eliminated 1/1988; 1/1994 (not listed) | | NAKINA |
| 177 | GAEX | General American-Evans Co. | 1/1952-4/1961; eliminated 4/1962 | | NAKINA |
| 178 | GAEX | General American-Evans Co. | 1/52-4/61; eliminated 4/62 | | NRHS |
| 179 | GAEX | General American Transportation Corp. | added 4/62; 7/65-1/80; eliminated 1/88; 1/94 | | NRHS |
| 180 | GAEX | General American Marks Co. | 7/2000; added 10/2000 | | NRHS |
| 181 | GAEX | GENERAL AMERICAN MARKS COMPANY [EVANS CORP] | | | PWRC |
| 182 | GAEX | General American Marks (GATX Corporation) | | | RSRV |
| 183 | GAF | German Air Force | Callsign: German Air Force, | D | AVCODES |
| 184 | GAF | German Air Force | | | ICAO1 |
| 185 | GAFA | G A F SEELIG INC | | | SCAC4 |
| 186 | GAFC | GEORGIA FREIGHTWAYS CORPORATION | | | SCAC4 |
| 187 | GAFL | GREEN ACRES FUELS | | | SCAC4 |
| 188 | GAFLT | K+M Fahrleitungstechnik GmbH | | DE | VKM |
| 189 | GAFT | GUARANTEED A FURNITURE & APPLIANCE | | | SCAC4 |
| 190 | GAFU | MACS MARITIME CARRIER SHIPPING GMBH & CO | | D | BIC |
| 191 | GAFU | GALBORG PTE LTD | | | SCAC4 |
| 192 | GAFX | Fuller Co. | 1/1994-7/2005 (not listed) | | NAKINA |
| 193 | GAFX | General American Transportation Corp. | added 7/1975; 1/1980 | | NAKINA |
| 194 | GAFX | General American Transportation Corp. | added 7/75; 1/80 | | NRHS |
| 195 | GAFX | Fuller Co. | 1/94-7/2000 | | NRHS |
| 196 | GAFX | *GENERAL AMERICAN TRANSPORTATION CORP | | | PWRC |
| 197 | GAFX | +FULLER COMPANY | | | PWRC |
| 198 | GAFX | General American Transportation (Fuller Co.) | | | RSRV |
| 199 | GAFX | FULLER COMPANY | | | SCAC4 |
| 200 | GAG | Global Air Operations PTY. Ltd. | Callsign: Global Airgroup, Name changed to Global Air Leasing PTY Ltd. | COM | AVCODES |
