| 1601 | HEWT | Houston East & West Texas Ry. | 4/1938-7/1954 | | NAKINA |
| 1602 | HEWT | Houston East & West Texas Ry. (Southern Pacific Lines in Texas and Louisiana) | 8/1920-7/1936 | | NAKINA |
| 1603 | HEWT | Houston & Shreveport R.R. (Southern Pacific Lines in Texas and Louisiana) | 8/1920-7/1923 | | NAKINA |
| 1604 | HEWT | Houston East & West Texas Ry. | 4/38-1/52 | | NRHS |
| 1605 | HEWT | HOUSTON EAST & WEST TEXAS RAILWAY | | | PWRC |
| 1606 | HEX | Honiara Cargo Express | Callsign: Honiara Cargo, | SOL | AVCODES |
| 1607 | HEX | Hatfield Executive Aviation Ltd. | Callsign: Hatair, | GB | AVCODES |
| 1608 | HEX | Honiara Cargo Express | | | ICAO1 |
| 1609 | HEX | Heathrow Express Operating Authority | Heathrow Express is a train service from Heathrow Airport to Paddington in central London operated by the Heathrow Express Operating Authority - a wholly-owned subsidiary of BAA. The service is not part of the National Rail system, despite part of its journey sharing track with National Rail trains and terminating at a London mainline station.http://www.heathrowexpress.com/ | GB | TRAFFIC |
| 1610 | HEX | Veolia Verkehr -Sachsen-Anhalt GmbH | | DE | VKM |
| 1611 | HEXA | HEXACAM | | | SCAC4 |
| 1612 | HEXC | HOVEY EXCAVATING | | | SCAC4 |
| 1613 | HEXD | HAMMERD | | | SCAC4 |
| 1614 | HEXG | HEXAGON LOGISTICS INC | | | SCAC4 |
| 1615 | HEXH | HINDLE EXHAUST SYSTEMS | | | SCAC4 |
| 1616 | HEXI | HAMMER EXPRESS INC | | | SCAC4 |
| 1617 | HEXJ | HEILEE EXPRESS | | | SCAC4 |
| 1618 | HEXL | HIGHLAND EXPRESS LLC | | | SCAC4 |
| 1619 | HEXO | HUDSONS EXXON SERVICENTER | | | SCAC4 |
| 1620 | HEXP | HIGHWAY EXPRESS CO | | | PWRC |
| 1621 | HEXQ | HERNANDEZ EXPRESS | | | SCAC4 |
| 1622 | HEXS | HIWAY EXPRESS | | | SCAC4 |
| 1623 | HEXU | HAN EXPRESS | | ROK | BIC |
| 1624 | HEYD | HEYWOOD TRANSPORTATION SERVICES LTD | | | SCAC4 |
| 1625 | HEYK | HEYER TRUCK LINE INC | | | SCAC4 |
| 1626 | HEYU | MERCONLOG GMBH | | D | BIC |
| 1627 | HEYW | HEYWOOD MARITIME S A | | | SCAC4 |
| 1628 | HEZ | Arrow Aviation Ltd. | Callsign: Arrow, | IL | AVCODES |
| 1629 | HEZ | HOLDREGG ELEVATOR | | | PWRC |
| 1630 | HF | Hapag Lloyd Fluggessellschaft mbH | ICAO: HLF, Callsign: Hapag Lloyd, IATA Prefix: 617, Name changed to TUIfly GmbH. ICAO callsign changed to Tuifly. | D | AVCODES |
| 1631 | HF | TUIfly GmbH | ICAO: HLF, Callsign: Hapag Lloyd, IATA Prefix: 617, Name changed from Hapag Lloyd Fluggessellschaft mbH. IATA designator changed to X3* w.e.f. 01 October 2010. ICAO designator changed to TUI w.e.f. 01 October 2010. | D | AVCODES |
| 1632 | HF | Air Cote d Ivoire | ICAO: VRE, Callsign: Cote D'Ivoire, Setup with strategic partner Air France. Founded on 15 May 2012. Commenced operations on 12 November 2012. | CI | AVCODES |
| 1633 | HF | Held & Francke Bau GmbH & Co KG | | AT | VKM |
| 1634 | HFAC | HENNECO FREIGHT AND LOGISTICS INC | | | SCAC4 |
| 1635 | HFAD | HOFFMAN TRANSPORT INC | | | SCAC4 |
| 1636 | HFAF | HOMESTEAD FARM AND FEED | | | SCAC4 |
| 1637 | HFAI | HAGERMAN FINE ART INC | | | SCAC4 |
| 1638 | HFAK | HERITAGE FARMS AND MARKET LLC | | | SCAC4 |
| 1639 | HFAS | HAMBLETON FINE ART SERVICES | | | SCAC4 |
| 1640 | HFAU | DERIVADOS DEL FLUOR SA | | E | BIC |
| 1641 | HFAU | BULKHAUL (UK) LTD | | | SCAC4 |
| 1642 | HFAX | Halifax Transit | | CDN | TRAFFIC |
| 1643 | HFBI | HYPHEN FREIGHT BROKERAGE INC | | | SCAC4 |
| 1644 | HFBL | H & F BROS LLC | | | SCAC4 |
| 1645 | HFBR | HOFF BROTHERS | | | SCAC4 |
| 1646 | HFC | HANNA FURNACE CO. | | | PWRC |
| 1647 | HFCC | HORTON FRUIT CO INC, THE | | | SCAC4 |
| 1648 | HFCD | HIGHBALL FISHING CO LTD | | | SCAC4 |
| 1649 | HFCG | HEBERT, FREDERICK CRAIG | | | SCAC4 |
| 1650 | HFCU | SPEDITION RHEINLAND H.FREUND GMBH&CO. KG | | D | BIC |
| 1651 | HFCU | SPEDITION RHEINLAND H FREUND GMBH & | | | SCAC4 |
| 1652 | HFCX | Harlan Fuel Co. | added 10/1978; eliminated 1/1979 | | NAKINA |
| 1653 | HFCX | Harlan Fuel Co. | added 10/78; eliminated 1/79 | | NRHS |
| 1654 | HFCX | HARLAN FUEL CO. | | | PWRC |
| 1655 | HFCY | HOLMAN FREIGHT COMPANY | | | SCAC4 |
| 1656 | HFD | Hatfield BAe | Callsign: Tibbet, | GB | AVCODES |
| 1657 | HFD | BCA Charters Ltd | Callsign: Highfield, | GB | AVCODES |
| 1658 | HFD | Helmut Feger GmbH | | DE | VKM |
| 1659 | HFDS | HARTFORD ENTERPRISES INC | | | SCAC4 |
| 1660 | HFDU | DO-FLUORIDE NEW MATERIALS Co., Ltd. | | PRC | BIC |
| 1661 | HFEC | HASTINGS-FISHER ENERGY CO INC | | | SCAC4 |
| 1662 | HFEK | HIOTT, F E TRUCKING LLC | | | SCAC4 |
| 1663 | HFEM | HERNANDEZ FERNANDEZ, ERMELANDO | | | SCAC4 |
| 1664 | HFFC | HUFF CONTRACTORS INC | | | SCAC4 |
| 1665 | HFFK | HEFFLEY CREEK TRUCKING | | | SCAC4 |
| 1666 | HFFM | HOFFMAN, TOM TRUCKING LLC | | | SCAC4 |
| 1667 | HFFN | HAFFNER & SONS TRUCKING INC | | | SCAC4 |
| 1668 | HFFO | HOFFMAN FUEL COMPANY OF BRIDGEPORT | | | SCAC4 |
| 1669 | HFFP | HUFF PETROLEUM CO | | | SCAC4 |
| 1670 | HFFQ | HITCHCOCK, F F OIL CO LLC | | | SCAC4 |
| 1671 | HFFS | HARVEY FARM & FOREST LTD | | | SCAC4 |
| 1672 | HFFV | H FIVE (H5) FLEET SERVICES LLC | | | SCAC4 |
| 1673 | HFFW | HUFF, WILLIAM B INC | | | SCAC4 |
| 1674 | HFGN | HOOPLE FARMERS GRAIN COMPANY | | | SCAC4 |
| 1675 | HFGT | HFG TRUCKING INC | | | SCAC4 |
| 1676 | HFH | Hafendienste Halle GmbH | Halle | D | privat-bahn.de |
| 1677 | HFH | Hafen Halle GmbH | | DE | VKM |
| 1678 | HFHA | HILLTOP FUEL HEATING & AIR CONDITIO | | | SCAC4 |
| 1679 | HFHJ | Hillerød - Frederiksværk - Hundested Jernbane (Frederiksværkbanen) | 1943 - 2001 | DK | jernbanen.dk |
| 1680 | HFHJ | Hillerød - Frederiksværk - Hundested Jernbane (Frederiksværkbanen) | 1943 - 2001 | DK | TRAFFIC |
| 1681 | HFHL | HUMBLE FREIGHT HAULER LLC | | | SCAC4 |
| 1682 | HFIC | HAYNES FARM INC | | | SCAC4 |
| 1683 | HFIE | HINTZSCHE FERTILIZER INC | | | SCAC4 |
| 1684 | HFIH | HR FISH | | | SCAC4 |
| 1685 | HFIM | HUNT FARMS INC | | | SCAC4 |
| 1686 | HFIN | HALDEMAN FARMS INC | | | SCAC4 |
| 1687 | HFIQ | HUSNEY FARRELL INC | | | SCAC4 |
| 1688 | HFIX | Hunt-Wesson Foods, Inc. | added 10/1969; 4/1970; eliminated 1/1973 | | NAKINA |
| 1689 | HFIX | Hunt Foods and Industries, Inc. | added 4/1959; 4/1961-10/1966; eliminated 10/1969 | | NAKINA |
| 1690 | HFIX | Hunt Foods, Inc. | 4/1947-10/1957; eliminated 4/1959 | | NAKINA |
| 1691 | HFIX | Hunt Foods, Inc. | 1/52-10/57 | | NRHS |
| 1692 | HFIX | Hunt Foods and Industries, Inc. | 4/61-10/66; eliminated 10/69 | | NRHS |
| 1693 | HFIX | Hunt-Wesson Foods, Inc. | added 10/69; 4/70; eliminated 1/73 | | NRHS |
| 1694 | HFIX | HUNT-WESSON FOODS, INC. [HUNT FOODS] | | | PWRC |
| 1695 | HFJ | Yifeng Business Jet Co., Ltd. | Callsign: Pangu, Name changed to Shenzhen United Business Jet Co., Ltd. | PRC | AVCODES |
| 1696 | HFJ | Shenzhen United Business Jet Co., Ltd. | Callsign: Pangu, Name changed from Yifeng Business Jet Co., Ltd.. | PRC | AVCODES |
| 1697 | HFJ | Hillerød - Frederiksværk Jernbane (Frederiksværkbanen) | 1897 - 1943 | DK | jernbanen.dk |
| 1698 | HFJ | Hillerød - Frederiksværk Jernbane (Frederiksværkbanen) | 1897 - 1943 | DK | TRAFFIC |
| 1699 | HFJV | HERRERA, FRANCISCO JAVIER AND VENEG | | | SCAC4 |
| 1700 | HFKC | HOFFMAN TRUCKING CO | | | SCAC4 |
