| 601 | GBDM | GRAEBEL/DENVE | | | SCAC4 |
| 602 | GBDS | GULBRANDSENS | | | SCAC4 |
| 603 | GBDY | GB SPECIALTY TRUCKING LLC | | | SCAC4 |
| 604 | GBE | Gabon Express | Callsign: Gabex, | G | AVCODES |
| 605 | GBE | Gabon Express | | | ICAO1 |
| 606 | GBEA | GILBERT COMPANY, THE | | | SCAC4 |
| 607 | GBEC | GLOBAL ENTERPRISES & LOGISTICS INC | | | SCAC4 |
| 608 | GBEF | G B ENTERPRISES OF FLAT ROCK | | | SCAC4 |
| 609 | GBEG | GLOBAL EAGLE TRANSPORTATION INC | | | SCAC4 |
| 610 | GBEK | GRAEBEL ERICKSON MOVERS INC | | | SCAC4 |
| 611 | GBEM | GRAEBEL/EAS | | | SCAC4 |
| 612 | GBEN | GARRETSON, BILL ENTERPRISES LLC | | | SCAC4 |
| 613 | GBEQ | G B EQUIPEMENTS INC | | | SCAC4 |
| 614 | GBET | GROBE FRUIT FARM LTD | | | SCAC4 |
| 615 | GBEU | SAFMARINE CONTAINER LINES NV | | | SCAC4 |
| 616 | GBEV | GRAEBEL DALLAS MOVERS INC | | | SCAC4 |
| 617 | GBF | North Air LLC | Callsign: Gicon, | KZ | AVCODES |
| 618 | GBFA | GIBSON FARMERS CO-OP | | | SCAC4 |
| 619 | GBFC | GBF ENTERPRISES INC | | | SCAC4 |
| 620 | GBFL | GLEIM BIO FUELS INC | | | SCAC4 |
| 621 | GBFO | GRANT BROTHERS FUEL OIL INC | | | SCAC4 |
| 622 | GBFV | GLOBAL FLEET SERVICE SA DE CV | | | SCAC4 |
| 623 | GBFW | GLOBAL FAIRWAYS INC | | | SCAC4 |
| 624 | GBFX | Green Bay Food Co. | 7/1935-7/1937; 1/1950-7/1965; eliminated 7/1966 | | NAKINA |
| 625 | GBFX | Green Bay Food Co. | 1/52-7/65; eliminated 7/66 | | NRHS |
| 626 | GBFX | GREEN BAY FOOD CO. | | | PWRC |
| 627 | GBFY | GLOBAL INFINITY TRANSPORT INC | | | SCAC4 |
| 628 | GBG | Omega Copters | Callsign: Omega Copters, | GE | AVCODES |
| 629 | GBG | Global Jet Limited | IATA: 7G, Designator 7G* recalled by IATA | UAE | AVCODES |
| 630 | GBG | GullivAir Ltd. | IATA: G2, Callsign: Vagabond, ICAO designator changed from TJJ. | BG | AVCODES |
| 631 | GBGB | GLOBAL TRADING & LOGISTICS INC | | | SCAC4 |
| 632 | GBGC | GLOBAL GOODS CORP | | | SCAC4 |
| 633 | GBGD | GLOBAL AGRICULTURE TRANS-LOADING IN | | | SCAC4 |
| 634 | GBGE | GLOBAL GREETINGS | | | SCAC4 |
| 635 | GBGG | GLOBAL LOGISTICS CONSULTING INC | | | SCAC4 |
| 636 | GBGI | G & B LOGISTICS | | | SCAC4 |
| 637 | GBGL | GIBBONS, G L TRAILER | | | SCAC4 |
| 638 | GBGN | GOLDING BARGE LINE INC | | | SCAC4 |
| 639 | GBGO | GREENE BRO L P GAS & OIL CO | | | SCAC4 |
| 640 | GBGQ | GILL BROTHERS LOGISTICS INC | | | SCAC4 |
| 641 | GBGR | GROUPE BERGER | | | SCAC4 |
| 642 | GBGS | GILBERT, G B SALES LTD | | | SCAC4 |
| 643 | GBH | Global Avia Handling Limited Company | | RUS | AVCODES |
| 644 | GBHC | GABI BROTHERS TRANSPORT INC | | | SCAC4 |
| 645 | GBHR | GRUPO BEHR DE BAJA CALIFORNIA S A | | | SCAC4 |
| 646 | GBIC | G B I CARRIERS INC | | | SCAC4 |
| 647 | GBIG | GLOBAL INTEGRATE LOGISTICS INC | | | SCAC4 |
| 648 | GBIH | GARRETT BROTHERS INC | | | SCAC4 |
| 649 | GBIL | GAMBILL OIL COMPANY INC | | | SCAC4 |
| 650 | GBIM | G & B INTERNATIONAL INC | | | SCAC4 |
| 651 | GBIN | GILBERT INTEREST INC | | | SCAC4 |
| 652 | GBIO | GILLIS BROTHERS INC | | | SCAC4 |
| 653 | GBIP | GRAY BROKERAGE INCORPORATED | | | SCAC4 |
| 654 | GBIT | GUILBAULT INTERNATIONAL TRANSPORT I | | | SCAC4 |
| 655 | GBIZ | GOLDBERG, INC. | | | PWRC |
| 656 | GBJ | WM Aero Charter | Callsign: Global Jet, Name changed to Aero Business Charter GmbH | D | AVCODES |
| 657 | GBJ | Aero Business Charter GmbH | Callsign: Global Jet, Name changed from WM Aero Charter | D | AVCODES |
| 658 | GBJ | RPS System Co., Ltd. | Callsign: Global Thai, | T | AVCODES |
| 659 | GBJ | Aero Business Charter | | | ICAO1 |
| 660 | GBJ | Göteborg - Borås Järnväg | 1894 - 1940 | S | svenska-lok.se |
| 661 | GBJ | Göteborg - Borås Järnväg | City: 1894 - 1940 | S | TRAFFIC |
| 662 | GBK | Gabon Airlines Cargo | IATA: 6G, | G | AVCODES |
| 663 | GBKG | GIBSON TRUCKING | | | SCAC4 |
| 664 | GBKU | TAM INTERNATIONAL LP | | CDN | BIC |
| 665 | GBKU | TAM International | | | RSRV |
| 666 | GBKU | TAM INTERNATIONAL INC | | | SCAC4 |
| 667 | GBL | GB Airways Ltd. | IATA: GT, Callsign: GeeBee Airways, IATA Prefix: 171, Merged into Easyjet on 30 March, 2008. ICAO callsign changed from Gibair | GB | AVCODES |
| 668 | GBL | GB Airways Ltd. | IATA: GT, Callsign: Gibair, IATA Prefix: 171, Name changed from Gibraltar Airways Ltd. | GB | AVCODES |
| 669 | GBL | UAB Global Airways | Callsign: Litglobe, | LT | AVCODES |
| 670 | GBL | GB Airways | IATA: GT | | ICAO1 |
| 671 | GBL | Green Bus Lines | | USA | TRAFFIC |
| 672 | GBLA | GLOBAL FREIGHT TRANSFER CORP | | | SCAC4 |
| 673 | GBLB | GARBO LOBSTER COMPANY INC | | | SCAC4 |
| 674 | GBLD | GLOBAL DRIVER SERVICES | | | SCAC4 |
| 675 | GBLF | GLOBAL FREIGHT MANAGEMENT INC | | | SCAC4 |
| 676 | GBLG | GENES CHARTERS | | | SCAC4 |
| 677 | GBLH | GLOBAL SHIPPING COMPANY LLC | | | SCAC4 |
| 678 | GBLN | GLOBE LOGISTICS INC | | | SCAC4 |
| 679 | GBLos | Geschw Balter Bauunternehmung GmbH | | DE | VKM |
| 680 | GBLP | GLOBAL LOGISTICS SOLUTIONS COMPANY | | | SCAC4 |
| 681 | GBLR | GABLER TRUCKING INC | | | SCAC4 |
| 682 | GBLS | G & B LOAD TRANSPORT LLC | | | SCAC4 |
| 683 | GBLU | SAFMARINE CONTAINER LINES NV | | | SCAC4 |
| 684 | GBLV | GROFF, BARRY L | | | SCAC4 |
| 685 | GBLW | GO BEST LOGISTICS INC | | | SCAC4 |
| 686 | GBLY | GRUMLEY BROKERAGE LLC | | | SCAC4 |
| 687 | GBM | GBM Aereo, S.A. de C.V. | Callsign: Aereo Gee-Bee-Emm, | MEX | AVCODES |
| 688 | GBM | GBM Gleisbaumechanik Brandenburg /H. GmbH | | D | TRAFFIC |
| 689 | GBM | GBM Wiebe Gleisbaumaschiennen GmbH | | DE | VKM |
| 690 | GBMA | G BROS MARITIME S A | | | SCAC4 |
| 691 | GBMF | GOLDEN BEAR MOVING AND STORAGE INCO | | | SCAC4 |
| 692 | GBMG | GONZALES DEL BOSQUE, MARIA | | | SCAC4 |
| 693 | GBMH | GRAEBEL BIRMINGHAM MOVERS INC | | | SCAC4 |
| 694 | GBMI | GLOBAL MARINE SYSTEMS LTD | | | SCAC4 |
| 695 | GBMK | GOLDEN BEAR MARKETING | | | SCAC4 |
| 696 | GBMO | GABINETES MEXICANOS | | | SCAC4 |
| 697 | GBMP | GAF BUILDING MATERIALS CORP | | | SCAC4 |
| 698 | GBMR | GUTIERREZ BARRERA, MARIA JUANITA | | | SCAC4 |
| 699 | GBMS | G B MANAGEMENT SYSTEMS INC | | | SCAC4 |
| 700 | GBMT | GLOBAL MATERIAL TECHNOLOGIES INC | | | SCAC4 |
