| 1401 | GDNJ | GOLDEN STAR TRANSPORT INC | | | SCAC4 |
| 1402 | GDNK | GLUNT, DANE TRUCKING | | | SCAC4 |
| 1403 | GDNL | GILLESPIE, DONALD JOHN | | | SCAC4 |
| 1404 | GDNO | GOLDEN STAR TRANSPORTATION INC | | | SCAC4 |
| 1405 | GDNP | GRD TRANSPORT | | | SCAC4 |
| 1406 | GDNS | GUARDIAN STORAGE & VAN CORPORATION | | | SCAC4 |
| 1407 | GDNU | GAZPROM DOBYCHA NOYABRSK | | RUS | BIC |
| 1408 | GDNY | GORDON, WALLY | | | SCAC4 |
| 1409 | GDOG | GRILLER, DOUG | | | SCAC4 |
| 1410 | GDOL | GOOD OIL CO | | | SCAC4 |
| 1411 | GDON | GOOD ONE | | | SCAC4 |
| 1412 | GDOP | GOULD OIL CO INC | | | SCAC4 |
| 1413 | GDOT | GEORGIA DEPARTMENT OF TRANSPORTATION | | | PWRC |
| 1414 | GDOT | G-DIAMOND TRANSPORT INC | | | SCAC4 |
| 1415 | GDOY | GODOY&DAUGHTERS TRUCKING | | | SCAC1 |
| 1416 | GDOY | G & D TRUCKING | | | SCAC4 |
| 1417 | GDPF | GOLDEN PANTRY FOOD STORES INC | | | SCAC4 |
| 1418 | GDPM | G D P MUSHROOMS INC | | | SCAC4 |
| 1419 | GDPN | G & D PETROLEUM TRANSPORTATION INC | | | SCAC4 |
| 1420 | GDPP | GRAN-DEL PETROLEUM PRODUCTS INC | | | SCAC4 |
| 1421 | GDPS | GUARANTEED EXPRESS INC | | | SCAC4 |
| 1422 | GDPT | GREEN, B & R TRUCKING LLC | | | SCAC4 |
| 1423 | GDPX | Gas del Pacifico | 1/1952-7/1954; eliminated 1/1956 | | NAKINA |
| 1424 | GDPX | Gas del Pacifico | Jan-52 | | NRHS |
| 1425 | GDPX | GAS DEL PACIFICO | | | PWRC |
| 1426 | GDQ | Lincoln, Ne Air National Guard | | USA | AVCODES |
| 1427 | GDQ | Lincoln Air National Guard | | | ICAO1 |
| 1428 | GDR | GVG Airlines Company | Callsign: Valiko, | KZ | AVCODES |
| 1429 | GDR | Gadair European Airlines, S.L. | Callsign: Gadair Lines, | E | AVCODES |
| 1430 | GDRA | GARDNER, ARLON TRUCKING | | | SCAC4 |
| 1431 | GDRB | GERARD, ROBERT | | | SCAC4 |
| 1432 | GDRD | GRACE, DAN | | | SCAC4 |
| 1433 | GDRE | GREEN, DARRELL L INC | | | SCAC4 |
| 1434 | GDRF | GOUDREAU TRUCKING INC | | | SCAC4 |
| 1435 | GDRG | GOODRICH TRANSPORT LTD | | | SCAC4 |
| 1436 | GDRK | GOOD, RODNEY TRUCKING | | | SCAC4 |
| 1437 | GDRL | GOLDEN EAGLE OIL REFINERY INC | | | SCAC4 |
| 1438 | GDRN | GRANDRIDGE CARRIERS INC | | | SCAC4 |
| 1439 | GDRQ | GRUPO DOBLE RR REFRIGERADOS SA DE C | | | SCAC4 |
| 1440 | GDRR | GRAND RAPIDS TRANSPORT INC | | | SCAC4 |
| 1441 | GDRT | GODARD, RON TRUCKING | | | SCAC4 |
| 1442 | GDRTA | Greater Dayton Regional Transit Authority | Real: RTA, City: Dayton (OH) | US-OH | TRAFFIC |
| 1443 | GDRV | GLENDALE RECREATIONAL VEHICLES | | | SCAC4 |
| 1444 | GDRY | GUIDRY TRUCKING | | | SCAC4 |
| 1445 | GDS | Golden Airlines | Callsign: Goldline, | RUS | AVCODES |
| 1446 | GDS | Steelman Aviation | Callsign: Goldstrike, ICAO designator changed to XSM. ICAO Callsign changed to Airsmart. | USA | AVCODES |
| 1447 | GDS | Gribskovbanens Driftselskab (Gribskovbanen) | 1880 - 2001 | DK | jernbanen.dk |
| 1448 | GDS | Gribskovbanens Driftselskab (Gribskovbanen) | 1880 - 2001 | DK | TRAFFIC |
| 1449 | GDSB | GRAEBEL RALEIGH MOVERS | | | SCAC4 |
| 1450 | GDSC | GOLD STAR CRATE | | | SCAC4 |
| 1451 | GDSD | G D S EXPRESS INC | | | SCAC4 |
| 1452 | GDSE | GOLDEN SERVICES INC | | | SCAC4 |
| 1453 | GDSF | GUARDIAN SAFETY SYSTEMS | | | SCAC4 |
| 1454 | GDSG | GOLD STAR SHIPPING INC | | | SCAC4 |
| 1455 | GDSJ | GMR DEDICATED SERVICES INC | | | SCAC4 |
| 1456 | GDSK | GRANADOS TRUCKING | | | SCAC4 |
| 1457 | GDSM | GENERAL DELIVERY & SERVICE COMPANY | | | SCAC4 |
| 1458 | GDSN | GOLD, A & SONS LTD | | | SCAC4 |
| 1459 | GDSQ | GATEWAY DISTRIBUTION SERVICES INC | | | SCAC4 |
| 1460 | GDSR | GOOD SPIRIT SHIPPING COMPANY LTD | | | SCAC4 |
| 1461 | GDSS | GRANE DISTRIBUTION SERVICES LLC | | | SCAC4 |
| 1462 | GDSU | GOLDEN SHIP LLC | | VN | BIC |
| 1463 | GDSW | GREEN DRAYAGE SYSTEMS INC | | | SCAC4 |
| 1464 | GDTA | G D T ENTERPRISES LTD | | | SCAC4 |
| 1465 | GDTB | GREAT DAY TRUCKING INC | | | SCAC4 |
| 1466 | GDTD | G D TRANSPORT | | | SCAC4 |
| 1467 | GDTF | GOOD, DOUGLAS TRUCKING | | | SCAC4 |
| 1468 | GDTI | GRIMSLEY TRUCKING, INC. | | | SCAC1 |
| 1469 | GDTK | G & D TRUCKING | | | SCAC4 |
| 1470 | GDTL | GINTEC SHADE TECHNOLOGIES INC | | | SCAC4 |
| 1471 | GDTM | GREEN DAY TRANSPORT LLC | | | SCAC4 |
| 1472 | GDTN | GRANTHAM, D T TRUCKING COMPANY | | | SCAC4 |
| 1473 | GDTO | GODINA TOVIAS, MAURICIO | | | SCAC4 |
| 1474 | GDTP | GOLDEN DROP TRUCKING | | | SCAC4 |
| 1475 | GDTS | GSE DEDICATED TRUCKLOAD | | | SCAC4 |
| 1476 | GDTT | GD TRANSPORT | | | SCAC4 |
| 1477 | GDTV | GERDES TRANSPORTATION SERVICES | | | SCAC4 |
| 1478 | GDTW | GREATWIDE DEDICATED TRANSPORT I LLC | | | SCAC4 |
| 1479 | GDTY | GORDON TRANSPORT INC | | | SCAC4 |
| 1480 | GDVN | GOOD VENTURES MARITIME INC | | | SCAC4 |
| 1481 | GDVP | GILBERT DEVELOPMENT CORPORATION | | | SCAC4 |
| 1482 | GDVT | GAGNON, DAVID TRANSPORT | | | SCAC4 |
| 1483 | GDW | Goldwing Airlines S.p.A. | IATA: EE, Ceased operations during March 2001. Designator EE recalled by IATA. Founded in December 2000. | I | AVCODES |
| 1484 | GDWK | GODWIN, R FLATBED SERVICE | | | SCAC4 |
| 1485 | GDWP | GOLDEN WEST TRANSPORT | | | SCAC1 |
| 1486 | GDWP | GOLDEN WEST TRANSPORT | | | SCAC4 |
| 1487 | GDWY | GRENADA RAILWAY LLC | | | SCAC4 |
| 1488 | GDX | Metal & Thermit Corp. | 7/1923-4/1938 | | NAKINA |
| 1489 | GDX | Metal & Thermit Corp. | Apr-38 | | NRHS |
| 1490 | GDX | METAL & THERMIT CORP. | | | PWRC |
| 1491 | GDXC | GEDEX TECHNOLOGIES INC | | | SCAC4 |
| 1492 | GDXI | GEDEX INC | | | SCAC4 |
| 1493 | GDXL | GUARDIAN TRANSPORT LLC | | | SCAC4 |
| 1494 | GDXM | GO THE DISTANCE TRANSPORTS LLC | | | SCAC4 |
| 1495 | GDXN | GALLARDOS TRANSPORT | | | SCAC4 |
| 1496 | GDXT | GDX TRUCKING | | | SCAC4 |
| 1497 | GDXV | GOOD EXCAVATING & HAULING LLC | | | SCAC4 |
| 1498 | GDY | Australian Law Enforcement Agencies | Callsign: Guardian, Name changed to LifeFlight Australia Pty Ltd. | AUS | AVCODES |
| 1499 | GDY | LifeFlight Australia Pty Ltd. | Callsign: Guardian, Name changed from Australian Law Enforcement Agencies. | AUS | AVCODES |
| 1500 | GDY | | City: Gdynia | PL | TRAFFIC |
