| 2601 | HKEN | HOCKENBARY, J & J | | | SCAC4 |
| 2602 | HKEP | HAWKS EXPRESS INC | | | SCAC4 |
| 2603 | HKEQ | HASKIN, STEVE TRUCKING | | | SCAC4 |
| 2604 | HKEV | HARVICK, KEVIN INC | | | SCAC4 |
| 2605 | HKEY | HACKER BOAT COMPANY INC | | | SCAC4 |
| 2606 | HKFI | HIS KINGDOM FREIGHT INC | | | SCAC4 |
| 2607 | HKFL | HUSKY FLOORING (DIV OF | | | SCAC4 |
| 2608 | HKG | Government Flying Service of Hong Kong Special Administrative Region | Callsign: Hongkong Government, | HK | AVCODES |
| 2609 | HKG | Government Flying Service | | | ICAO1 |
| 2610 | HKGC | HOOK GRAIN CORP | | | SCAC4 |
| 2611 | HKGI | HOLTHAUS TRUCKING INC | | | SCAC4 |
| 2612 | HKGU | HONG KONG ISLANDS LINE | | | PWRC |
| 2613 | HKGU | Hong Kong Islands Line | | | RSRV |
| 2614 | HKGX | Haines & Kibblehouse, Inc. | 7/2005 (not listed) | | NAKINA |
| 2615 | HKGX | HAINES & KIBBLEHOUSE, INC. | | | PWRC |
| 2616 | HKGX | Haines & Kibblehouse Inc. (The H&K Group) | | | RSRV |
| 2617 | HKGX | HAINES & KIBBLEHOUSE INC | | | SCAC4 |
| 2618 | HKGX | Haines & Kibblehouse Inc | | USA | TRAFFIC |
| 2619 | HKH | Air-Invest Ltd | Callsign: Hawkhungary, | H | AVCODES |
| 2620 | HKH | Air-Invest | | | ICAO1 |
| 2621 | HKHA | Hong Kong Hospital Authority | | HK | TRAFFIC |
| 2622 | HKHU | HONG-KUANG HI TECH, CORP | | RC | BIC |
| 2623 | HKHUV | Klostermann Baugesellschaft GmbH | | DE | VKM |
| 2624 | HKI | Wachovia Flight Operations d/b/a Hawkaire | Callsign: Hawkeye, | USA | AVCODES |
| 2625 | HKI | Hawkaire | | | ICAO1 |
| 2626 | HKIN | HOLLISTER TRUCKING INC | | | SCAC4 |
| 2627 | HKIR | HILLS TRUCKING INC | | | SCAC4 |
| 2628 | HKIS | HONG KONG ISLANDS LINE | | | PWRC |
| 2629 | HKIU | HONG KONG ISLANDS LINE | | | PWRC |
| 2630 | HKIU | Hong Kong Islands Line | | | RSRV |
| 2631 | HKJ | Hong Kong Airlines Corporate Jet Management Ltd | | PRC | AVCODES |
| 2632 | HKJ | Hästveda - Karpalund Järnväg | 1886 - 1898 | S | svenska-lok.se |
| 2633 | HKJF | HARVEL, K & J FARMS | | | SCAC4 |
| 2634 | HKJL | HARKNESS, JIM EQUIPMENT LTD | | | SCAC4 |
| 2635 | HKJT | HACKLE, JERRY TRUCKING | | | SCAC4 |
| 2636 | HKKL | HICKS TRUCKING II LLC | | | SCAC4 |
| 2637 | HKL | Hak Air Limited | Callsign: Hak Airline, | WAN | AVCODES |
| 2638 | HKL | Hak Air | | | ICAO1 |
| 2639 | HKLC | HOKER LOGISTICS LLC | | | SCAC4 |
| 2640 | HKLG | H & K LOGISTICS LLC | | | SCAC4 |
| 2641 | HKLI | HWY-KING LOGISTICS INC | | | SCAC4 |
| 2642 | HKLS | HERRING, KEN L & SON INC | | | SCAC4 |
| 2643 | HKMD | HAWKEYE MOVERS OF DAVENPORT INC | | | SCAC4 |
| 2644 | HKMI | HENKELS & MCCOY INC | | | SCAC4 |
| 2645 | HKMTR | MTR Corporation | | HK | TRAFFIC |
| 2646 | HKMW | HONG KONG MING WAH SHIPPING COMPANY | | | SCAC4 |
| 2647 | HKN | Jim Hankins Air Service, Inc. | Callsign: Hankins, | USA | AVCODES |
| 2648 | HKN | Jim Hankins Air Service | | | ICAO1 |
| 2649 | HKNANNY | School private bus service | City: Hong Kong | HK | TRAFFIC |
| 2650 | HKNI | HIT INC | | | SCAC4 |
| 2651 | HKNU | HUBERT KLAESENER JR. FLUESSIGKEISTRANSPORTE GMBH & CO KG | | D | BIC |
| 2652 | HKNU | HUBERT KLASENER JR FLUSSIGKEITSTRAN | | | SCAC4 |
| 2653 | HKO | Helico ApS | | DK | AVCODES |
| 2654 | HKO | Hilton Kommunal GmbH | | DE | VKM |
| 2655 | HKOD | HHTANKERS ONE LTD | | | SCAC4 |
| 2656 | HKOL | HAWKEYE OIL CO | | | SCAC4 |
| 2657 | HKONG | | | | TRAFFIC |
| 2658 | HKPE | HOLTKAMP ENTERPRISES | | | SCAC4 |
| 2659 | HKPI | HAWK PLASTICS LTD | | | SCAC4 |
| 2660 | HKPU | HONG KONG ISLANDS LINE | | | PWRC |
| 2661 | HKPU | Hong Kong Islands Line | | | RSRV |
| 2662 | HKR | Hawk Air, S.A. | Callsign: Air Haw, Founded in 1998. Ceased operations during 2006. | RA | AVCODES |
| 2663 | HKR | Tower Aviation Management LLC d/b/a A2V | Callsign: Data Bird, | USA | AVCODES |
| 2664 | HKR | Hawk Air | | | ICAO1 |
| 2665 | HKRA | HOEKSTRA TRANSPORTATION LLC | | | SCAC4 |
| 2666 | HKRD | HOEKSTRA DEDICATED (DIV OF HOEKSTRA | | | SCAC4 |
| 2667 | HKRE | HINKLEY, R E CO INC | | | SCAC4 |
| 2668 | HKREHA | The Hong Kong Society for Rehabilitation | | HK | TRAFFIC |
| 2669 | HKRL | HOEKSTRA LOGISTICS LLC | | | SCAC4 |
| 2670 | HKRN | HAMELIN, KRISTIN | | | SCAC4 |
| 2671 | HKS | Helikopter Service A/S | IATA: L5, Callsign: Helibus, Name changed to CHC Helikopter Service AS | N | AVCODES |
| 2672 | HKS | Helikopter Service A/S | IATA: HK, Callsign: Helibus, | N | AVCODES |
| 2673 | HKS | CHC Helikopter Service AS | IATA: L5, Callsign: Helibus, Designator L5 recalled by IATA. Name changed from Helikopter Service A/S | N | AVCODES |
| 2674 | HKS | CHC Helikopter Service AS | Callsign: Helibus, Designator L5 recalled by IATA. Name changed from Helikopter Service A/S | N | AVCODES |
| 2675 | HKS | CHC Helikopter Service | | | ICAO1 |
| 2676 | HKSB | HAMRICK SR, BRET T | | | SCAC4 |
| 2677 | HKSC | HUCKABAY, KENT S LLC | | | SCAC4 |
| 2678 | HKSD | HOOKS, DUANE | | | SCAC4 |
| 2679 | HKSL | HENRIKSEN, AL TRANS | | | SCAC4 |
| 2680 | HKSN | HOCKERSMITH TRANSPORTATION SERVICES COMPANY, INC | | | SCAC1 |
| 2681 | HKSP | HAWK SHIPPING LLC | | | SCAC4 |
| 2682 | HKSR | H K SPEED EXPRESS INC | | | SCAC4 |
| 2683 | HKST | HILKER, STEVE TRUCKING INC | | | SCAC4 |
| 2684 | HKTD | HK TOWING LLC | | | SCAC4 |
| 2685 | HKTI | HANCOCK TRUCKING LLC | | | SCAC4 |
| 2686 | HKTK | HUKRIEDE TRUCKING INC | | | SCAC4 |
| 2687 | HKTN | H K P TRUCKING | | | SCAC4 |
| 2688 | HKTO | HANADARKO TRANSPORT LLC | | | SCAC4 |
| 2689 | HKTU | KLAESER INT FACHSPEDITION & FAHRZEUGBAU GMBH | | D | BIC |
| 2690 | HKTU | HONG KONG ISLANDS LINE | | | PWRC |
| 2691 | HKTU | Hong Kong Islands Line | | | RSRV |
| 2692 | HKTU | KLAESER INT FACHSPEDITION & FARHZEU | | | SCAC4 |
| 2693 | HKUE | HOKU EXPRESS INC | | | SCAC4 |
| 2694 | HKUT | HANSEN, KURT | | | SCAC4 |
| 2695 | HKUU | HONG KONG ISLANDS LINE | | | PWRC |
| 2696 | HKUU | Hong Kong Islands Line | | | RSRV |
| 2697 | HKV | Inversiones Hucaven C.A. | Callsign: Hucaven, | YV | AVCODES |
| 2698 | HKVS | HOOK, V B & COMPANY INC | | | SCAC4 |
| 2699 | HKWC | HOFFMANN, K W TRANSPORT COMPANY LLC | | | SCAC4 |
| 2700 | HKX | Hamburg-Köln-Express GmbH | Berlin | D | privat-bahn.de |
