| 201 | GAG | Global Air Leasing PTY Ltd. | Callsign: Global Airgroup, Name changed from Global Air Operations PTY. Ltd. | COM | AVCODES |
| 202 | GAG | GreyBird Aviation Group | Callsign: Geebird, | DK | AVCODES |
| 203 | GAG | Global Air Operations | | | ICAO1 |
| 204 | GAGA | GARCIA GARCIA, MANUEL | | | SCAC4 |
| 205 | GAGC | GARDNER TRUCKING INC (GP SOUTHERN C | | | SCAC4 |
| 206 | GAGD | GOLDHAGEN ART GLASS STUDIO | | | SCAC4 |
| 207 | GAGJ | G AND G OPERATORS LTD | | | SCAC4 |
| 208 | GAGL | GAGLIANO, B V INC | | | SCAC4 |
| 209 | GAGO | G & A LOGISTIC INC | | | SCAC4 |
| 210 | GAGP | G&G EXPRESS, INC | | | SCAC1 |
| 211 | GAGP | GAGNON, PIERRE | | | SCAC4 |
| 212 | GAH | Ga-Ma Helicoptere | Callsign: Gamhelico, | F | AVCODES |
| 213 | GAH | Ga-Ma Helicoptere | | | ICAO1 |
| 214 | GAHM | G&H MOTOR FREIGHT LINES, INC | | | SCAC1 |
| 215 | GAHM | G & H MOTOR FREIGHT LINES | | | SCAC4 |
| 216 | GAHS | GARDNER, A H & SON COMPANY INC | | | SCAC4 |
| 217 | GAHX | Geo. A. Hormel & Co. | 7/1923-1/1941 | | NAKINA |
| 218 | GAHX | Geo. A. Hormel & Co. (North American Car Corp.) | Apr-38 | | NRHS |
| 219 | GAHX | GEO. A. HORMEL & CO. | | | PWRC |
| 220 | GAI | Gromov Flight Research Institute Airline | {IATA: 3R, Callsign: Gromov Airline, IATA Prefix: 520, Name changed to Joint Stock Company "Moskovia Airlines". Designator 3R reinstated by IATA};SRCKEY=AVCODES | RUS | |
| 221 | GAI | Gromov Air, JSC | Callsign: Gromov Airline, | RUS | AVCODES |
| 222 | GAI | Joint Stock Company "Moskovia Airlines" | IATA: 3R, Callsign: Gromov Airline, IATA Prefix: 520, Name changed from Gromov Flight Research Institute Airline. Designator 3R reinstated by IATA | RUS | AVCODES |
| 223 | GAI | Joint Stock Company "Moskovia Airlines" | Callsign: Gromov Airline, IATA Prefix: 520, AOC Suspended by Rosaviatsia on 29 August 2014 due financial issues. Designator 3R recalled by IATA. Name changed from Gromov Flight Research Institute Airline | RUS | AVCODES |
| 224 | GAI | Moskovia Airlines | IATA: 3R | | ICAO1 |
| 225 | GAIB | GABRIEL, A INC | | | SCAC4 |
| 226 | GAIC | GROUPE ANDERSON INC | | | SCAC4 |
| 227 | GAIE | GAN-TRIBUTE CO LTD | | | SCAC4 |
| 228 | GAIF | GAN-TROPHY CO LTD | | | SCAC4 |
| 229 | GAIG | GAILES GAS TRANSPORTS INC | | | SCAC4 |
| 230 | GAII | GALLANT INTERNATIONAL INC | | | SCAC4 |
| 231 | GAIJ | GRIMMS AUTOMOVATION INC | | | SCAC4 |
| 232 | GAIK | GUMRO & ASSOCIATES INC | | | SCAC4 |
| 233 | GAIN | GAINES MOTOR LINES, INC | | | SCAC1 |
| 234 | GAIP | GRAND AIRE INC | | | SCAC4 |
| 235 | GAIS | GESTION ATLAS 2000 INC | | | SCAC4 |
| 236 | GAIT | GAILSCO TRANSPORTATION/LOGISTICS | | | SCAC4 |
| 237 | GAIT | Gdańskie Autobusy i Tramwaje | City: Gdansk, On January 19, 2017, the company changed its name from Zakład Komunikacji Miejskiej in Gdańsk to Gdańskie Autobusy i Tramwaje . | PL | TRAFFIC |
| 238 | GAIV | GALA INVESTMENTS INC | | | SCAC4 |
| 239 | GAIW | GAN-TRIUMPH CO LTD | | | SCAC4 |
| 240 | GAJ | Gama Charters, Inc. | Callsign: Gama Jet, Name changed to Gama Aviation, LLC. | USA | AVCODES |
| 241 | GAJ | Gama Aviation, LLC. | Callsign: Gama Jet, Name changed from Gama Charters, Inc. | USA | AVCODES |
| 242 | GAJDA | Autokarowe Usługi Przewozowe Krzysztof Gajda | City: Bielawa | PL | TRAFFIC |
| 243 | GAJK | GIL AND J TRUCKING | | | SCAC4 |
| 244 | GAJN | GALLANT AND JONES | | | SCAC4 |
| 245 | GAJO | GOMEZ AGUILAR, JOSE MANUEL | | | SCAC4 |
| 246 | GAJT | G & J TRUCKING INC | | | SCAC4 |
| 247 | GAK | Global Aviation Services Group | IATA: 5S, IATA Prefix: 301, Designator 5S reinstated by IATA | LAR | AVCODES |
| 248 | GAK | Global Aviation Services Group | Designator 5S recalled by IATA | LAR | AVCODES |
| 249 | GAK | Global Aviation and Services Group | | | ICAO1 |
| 250 | GAKL | GASKILL TRUCKING | | | SCAC1 |
| 251 | GAKL | GASKILL TRUCKING | | | SCAC4 |
| 252 | GAKN | GARCIA, A TRUCKING | | | SCAC4 |
| 253 | GAKQ | GUINEA TRUCKING INC | | | SCAC4 |
| 254 | GAKU | Gakunan Railway | | J | TRAFFIC |
| 255 | GAL | Galaxy Air | IATA: 7O, Callsign: Galaxy, | KS | AVCODES |
| 256 | GAL | Gemini Airlines Ltd. | IATA: GP, Callsign: Golf Papa, Designator GP recalled by IATA | GH | AVCODES |
| 257 | GAL | Allanza Glancelot C.A. | IATA: G2, Callsign: Errante, Designator G2* recalled by IATA | YV | AVCODES |
| 258 | GAL | Allanza Glancelot C.A. | IATA: G0, Callsign: Errante, IATA Prefix: 261, Designator G2* recalled by IATA | YV | AVCODES |
| 259 | GAL | Galaxy Air | IATA: 7O | | ICAO1 |
| 260 | GAL | GIDEON-ANDERSON LUMBE | | | PWRC |
| 261 | GAL | GRAY LINE OF ATLANTA (ATLANTA TRANS | | | SCAC4 |
| 262 | GALA | GARCIA ALVARADO, LUIS ALBERTO | | | SCAC4 |
| 263 | GALB | GALBUSIERI, MIKE TRUCKING INC | | | SCAC4 |
| 264 | GALD | GALINDO TRANSPORTS INC | | | SCAC4 |
| 265 | GALE | GALE TRANSFER INC | | | SCAC4 |
| 266 | GALF | GLOBAL AMERICAN LINE | | | SCAC4 |
| 267 | GALG | G A LOGISTIQUE | | | SCAC4 |
| 268 | GALH | GALA FREIGHT SERVICES | | | SCAC4 |
| 269 | GALI | GALIB TRUCKING CO LTD | | | SCAC4 |
| 270 | GALK | GRAND AVENUE LIMOUSINE LLC | | | SCAC4 |
| 271 | GALL | GLOBAL ATLANTIC LOGISTICS LLC | | | SCAC4 |
| 272 | GALL | Galleon Travel | | GB | TRAFFIC |
| 273 | GALLOP | Gallop Bus Lines | | USA | TRAFFIC |
| 274 | GALM | GALLO, TOM INC | | | SCAC4 |
| 275 | GALO | GALASSO TRUCKING INC | | | SCAC4 |
| 276 | GALU | GALCO NV | | B | BIC |
| 277 | GALU | SOCIETE GALEX | | | SCAC4 |
| 278 | GALV | GALVESTON TERMINAL | | | PWRC |
| 279 | GALW | GALEANA TRUCKING COMPANY INCORPORAT | | | SCAC4 |
| 280 | GALX | Falley Corp. | added 4/1969; eliminated 7/1969 | | NAKINA |
| 281 | GALX | Georgia Power Co. | added 4/1986; 1/1994-7/2005 | | NAKINA |
| 282 | GALX | Falley Petroleum Co. | added 1/1969; eliminated 4/1969 | | NAKINA |
| 283 | GALX | Gas Liquids, Inc. | added 10/1960; 4/1961-10/1966; eliminated 1/1969 | | NAKINA |
| 284 | GALX | Gas Liquids, Inc. | added 10/60; 4/61-10/66; eliminated 1/69 | | NRHS |
| 285 | GALX | Falley Petroleum Co. | added 1/69; eliminated 4/69 | | NRHS |
| 286 | GALX | Falley Corp. | added 4/69; eliminated 7/69 | | NRHS |
| 287 | GALX | Georgia Power Co. | added 4/86; 1/94-7/2000 | | NRHS |
| 288 | GALX | *FALLEY CORP. [FALLEY PETROLEUM CO.; GAS LIQUIDS, INC.] | | | PWRC |
| 289 | GALX | +GEORGIA POWER COMPANY | | | PWRC |
| 290 | GALX | Georgia Power | | | RSRV |
| 291 | GALX | GEORGIA POWER COMPANY | | | SCAC4 |
| 292 | GALY | GALYEN TRANSPORTATION INC | | | SCAC4 |
| 293 | GAM | German Army | Callsign: German Army, | D | AVCODES |
| 294 | GAM | Guy America Airways | IATA: GK, Callsign: Guyam, | USA | AVCODES |
| 295 | GAM | German Army | | | ICAO1 |
| 296 | GAMD | GAMACHE, DAN TRUCKING INC | | | SCAC4 |
| 297 | GAME | GULF AMERICAN LINE | | | SCAC4 |
| 298 | GAMJ | GRAEBEL ALBUQUERQUE MOVERS INC | | | SCAC4 |
| 299 | GAMM | GARCIA MURILLO, MARIO ALBERTO | | | SCAC4 |
| 300 | GAMN | GAM TRUCKING | | | SCAC4 |
