| 601 | HBGX | +HBG ENTERPRISES OF TAMPA, INC. [HILLSBORO BOTTLED GAS CO.] | | | PWRC |
| 602 | HBGX | Hillsboro Bottled Gas (HBG Enterprises of Tampa) | | | RSRV |
| 603 | HBGX | HBG ENTERPRISES OF TAMPA, INC. | | | SCAC4 |
| 604 | HBH | Hebei Airlines Co., Ltd. | IATA: NS, Callsign: Hebei Air, IATA Prefix: 836, Name changed from Northeast Airlines Co. Ltd. | PRC | AVCODES |
| 605 | HBHF | H B HELLER FASHION TEAM INC | | | SCAC4 |
| 606 | HBI | CHC Denmark APS | Callsign: Helibird, | DK | AVCODES |
| 607 | HBI | CHC Denmark | | | ICAO1 |
| 608 | HBIC | HARBOR BRIDGE INTERMODAL INC | | | SCAC4 |
| 609 | HBII | HARBOUR INTERNATIONAL INCORPORATED | | | SCAC4 |
| 610 | HBIL | HILLBILLY TRANSPORT LTD | | | SCAC4 |
| 611 | HBIM | HILL BROTHERS INTERMODAL LOGISTICS | | | SCAC4 |
| 612 | HBIN | HOFFMAN, BILL | | | SCAC4 |
| 613 | HBIR | HUELLINGHOFF BROS INC | | | SCAC4 |
| 614 | HBIS | HEMPT BROTHERS INC | | | SCAC4 |
| 615 | HBIU | H B I | | | SCAC4 |
| 616 | HBIZ | HARVEST BRAND INC. | | | PWRC |
| 617 | HBJ | Horsens - Bryrup Jernbane | 1899 - 1929 | DK | jernbanen.dk |
| 618 | HBJ | Horsens - Bryrup Jernbane | 1899 - 1929 | DK | TRAFFIC |
| 619 | HBJS | HILAC BEAUTY & JEWELLERY | | | SCAC4 |
| 620 | HBKC | HAMEL BULK CARRIERS LTD | | | SCAC4 |
| 621 | HBKF | HAWBAKER FARMS | | | SCAC4 |
| 622 | HBKG | HUBERT TRUCKING INC | | | SCAC4 |
| 623 | HBKH | HERBIES TRUCKING LLC | | | SCAC4 |
| 624 | HBKK | HABECK TRUCKING INC | | | SCAC4 |
| 625 | HBKX | Hills Bros. Coffee, Inc. | 7/1932-7/1937 | | NAKINA |
| 626 | HBKX | HILLS BROTHERS COFFEE, INC. | | | PWRC |
| 627 | HBL | HKJ Bermuda Ltd. | | BM | AVCODES |
| 628 | HBL | Faroecopter | | | ICAO1 |
| 629 | HBL | Harbor Belt Line | 1/1994-7/2005 | | NAKINA |
| 630 | HBL | Harbor Belt Line | 1/94-7/2000 | | NRHS |
| 631 | HBL | HARBOR BELT LINE RAILROAD | | | PWRC |
| 632 | HBL | Harbor Belt Line | | | RSRV |
| 633 | HBLA | HERBAL GARDEN, THE | | | SCAC4 |
| 634 | HBLD | HARBORLITE DISTRIBUTION CORP | | | SCAC4 |
| 635 | HBLL | H B LOGISTICS LLC | | | SCAC4 |
| 636 | HBLP | HBL EXPRESS INC | | | SCAC4 |
| 637 | HBLU | SHANGHAI BAILIN INTERNATIONAL TRANSPORTATION CO.LTD | | PRC | BIC |
| 638 | HBLU | SHANGHAI BALIN INTERNATIONAL TRANSP | | | SCAC4 |
| 639 | HBM | Mali-tinbouctou Air Service (Malitas) | | RMM | AVCODES |
| 640 | HBM | Hafenbahn Mülheim | | D | TRAFFIC |
| 641 | HBMC | HAYDEN BUILDING MAINTENANCE CORP | | | SCAC4 |
| 642 | HBMH | H BECK MACHINERY LTD | | | SCAC4 |
| 643 | HBMI | HEBERT, MEUNERIE INC | | | SCAC4 |
| 644 | HBMR | HONEY BEE MANUFACTURING LTD | | | SCAC4 |
| 645 | HBMU | HOPE BAY MINING LTD | | | SCAC4 |
| 646 | HBMX | Henry Bower Chemical Manufacturing Co. | 8/1920-7/1923 | | NAKINA |
| 647 | HBMX | HENRY BROWER CHEMICAL MANUFACTURING CO. | | | PWRC |
| 648 | HBN | Hibernian Airlines Limited | IATA: HG, Callsign: Finch, Wholly-owned by ILAI (Inversiones L�neas A�reas Internacionales), the parent of Air Nostrum. ACMI operator with CRJ-1000. | IRL | AVCODES |
| 649 | HBN | Verein Hafenbahn Neustrelitz e.V | | DE | VKM |
| 650 | HBNS | HUEBNER & SON TRUCKING INC | | | SCAC4 |
| 651 | HBNT | HOLBORN TRUCKING | | | SCAC4 |
| 652 | HBNU | HALLIBURTON | | USA | BIC |
| 653 | HBO | HARMON BROS CHARTER SERVICES INC | | | SCAC4 |
| 654 | HBOF | HOBBS LEASING INC | | | SCAC4 |
| 655 | HBOR | HARBOR RAIL TRANSPORT, Intermodal Container Service, INC | | | SCAC1 |
| 656 | HBOR | HARBOR RAIL TRANSPORT | | | SCAC4 |
| 657 | HBOT | HUNTER BOTTLING | | | SCAC4 |
| 658 | HBOU | CANGZHOU HUIBANG ELECTRICAL & MECHANICAL PRODUCTS MAKING CO., LTD. | | PRC | BIC |
| 659 | HBP | Hornonitrianske bane Prievidza, a.s. | | SK | VKM |
| 660 | HBPN | HARVEST BLEND PET NUTRITION INC | | | SCAC4 |
| 661 | HBR | Hebridean Air Services | Callsign: Hebridean, | GB | AVCODES |
| 662 | HBRA | HILDEBRAND, BERNIE & RON | | | SCAC4 |
| 663 | HBRB | HARBAUER, ROBERT K | | | SCAC4 |
| 664 | HBRC | HIBBARD, ROBERT TRUCKING | | | SCAC4 |
| 665 | HBRD | HEBERT, DANIEL | | | SCAC4 |
| 666 | HBRE | HUTTERIAN BRETHREN OF KYLE | | | SCAC4 |
| 667 | HBRI | HEBERT, P J INC | | | SCAC4 |
| 668 | HBRJ | HIGHWAY, BRUCE | | | SCAC4 |
| 669 | HBRK | HARBOR TRUCKING LTD | | | SCAC4 |
| 670 | HBRO | HEEREN BROS INC | | | SCAC4 |
| 671 | HBRP | HADLEY, BRIAN RALPH | | | SCAC4 |
| 672 | HBRQ | HBR TRUCKING INC | | | SCAC4 |
| 673 | HBRU | HERNANDEZ BELLO S I | | | SCAC4 |
| 674 | HBRY | Hudson Bay Ry. Co. | added 10/1997; 7/2000-7/2005; eliminated 4/2006 | | NAKINA |
| 675 | HBRY | Hudson Bay Ry. Co. | added 10/97; 7/2000 | | NRHS |
| 676 | HBRY | HUDSON BAY RAILWAY COMPANY (OMNITRAX) | | | PWRC |
| 677 | HBRY | Hudson Bay Railway (OmniTRAX) | | | RSRV |
| 678 | HBRY | HUDSON BAY RAILWAY COMPANY | | | SCAC4 |
| 679 | HBRY | Hudson Bay Railway Company (Omnitrax) | | USA | TRAFFIC |
| 680 | HBS | Horsens - Bryrup - Silkeborg (Bryrupbanen) | 1929 - 1968 | DK | jernbanen.dk |
| 681 | HBS | Hoboken Shore R.R. | 1/1975; eliminated 7/1977; 1/1980 | | NAKINA |
| 682 | HBS | Hoboken Shore R.R. | 1/75; eliminated 7/77; 1/80 | | NRHS |
| 683 | HBS | HOBOKEN SHORE RAILROAD | | | PWRC |
| 684 | HBS | Hoboken Shore R.R. | | USA | TRAFFIC |
| 685 | HBSD | HEMISPHE | | | SCAC4 |
| 686 | HBSD | Horsens - Bryrup - Silkeborg (Bryrupbanen) | Real: HBS, 1929 - 1968 | DK | TRAFFIC |
| 687 | HBSK | HOBUS TRUCKING | | | SCAC4 |
| 688 | HBSO | HALBERT & SON | | | SCAC4 |
| 689 | HBSU | HANBAO CONTAIINER SHIPPING & TRADING GMBH | | D | BIC |
| 690 | HBSU | HANBAO CONTAINER SHIPPING & TRADING | | | SCAC4 |
| 691 | HBSV | HANDBELL SERVICES INC | | | SCAC4 |
| 692 | HBSX | Purex Corp., Ltd. | 4/1961 | | NAKINA |
| 693 | HBSX | Purex Corp. | added 1/1957; 10/1957 | | NAKINA |
| 694 | HBSX | Haskins Bros. & Co. | 8/1920; 7/1935-7/1954; eliminated 1/1957 | | NAKINA |
| 695 | HBSX | Haskins Bros. & Co. | 4/38-1/52 | | NRHS |
| 696 | HBSX | Purex Corp. | Oct-57 | | NRHS |
| 697 | HBSX | Purex Corp., Ltd. | Apr-61 | | NRHS |
| 698 | HBSX | *HASKINS BROS. & CO. | | | PWRC |
| 699 | HBSX | *PUREX CORP., LTD. | | | PWRC |
| 700 | HBT | Polizeihubschrauberstaffel Thuringen | Callsign: Habicht, | D | AVCODES |
