| 2401 | HLEX | Hunstman Polymers Corporation | RSRV | ||
| 2402 | HLEX | BRASKEM AMERICA INC | SCAC4 | ||
| 2403 | HLEY | HALEY INDUSTRIES LTD | SCAC4 | ||
| 2404 | HLF | Hapagfly | IATA: HF | ICAO1 | |
| 2405 | HLFC | HILLTOP FUEL CO INC | SCAC4 | ||
| 2406 | HLFL | HARBOUR LIGHT FISHERIES (1993) LIMI | SCAC4 | ||
| 2407 | HLFN | H L FUEL CO INC | SCAC4 | ||
| 2408 | HLG | Helog | ICAO1 | ||
| 2409 | HLG | Holzlogistik und Güterbahn GmbH | Bebra | D | privat-bahn.de |
| 2410 | HLGC | HAYNES LOGISTICS | SCAC4 | ||
| 2411 | HLGF | HOLLISTON LOGISTICS LLC | SCAC4 | ||
| 2412 | HLGI | HUNTER EXPRESS LTD | SCAC4 | ||
| 2413 | HLGK | HEDRICK LOGISTICS SPECIALISTS INC | SCAC4 | ||
| 2414 | HLGN | HILL GRAIN INC | SCAC4 | ||
| 2415 | HLGR | HARRAH LOGISTICS GROUP INC | SCAC4 | ||
| 2416 | HLGS | HART LOGISTICS | SCAC4 | ||
| 2417 | HLGX | HELM Financial Corp. | added 7/1998; 7/2000-7/2005 | NAKINA | |
| 2418 | HLGX | HELM Financial Corp. | added 7/98; 7/2000 | NRHS | |
| 2419 | HLGX | HELM FINANCIAL CORPORATION | PWRC | ||
| 2420 | HLGX | Helm Financial Corporation | RSRV | ||
| 2421 | HLH | Hala Air | ICAO1 | ||
| 2422 | HLHC | HILLSIDE HAULING INC | SCAC4 | ||
| 2423 | HLHE | HLH EXPRESS INC | SCAC4 | ||
| 2424 | HLHG | HOLTZ, HUGH | SCAC4 | ||
| 2425 | HLHL | HILL AND HILL TRANSPORT | SCAC4 | ||
| 2426 | HLHU | HORN LINIE | SCAC4 | ||
| 2427 | HLI | Heli Securite | ICAO1 | ||
| 2428 | HLIA | HOLLIS TRANSPORT AGENCY INC | SCAC4 | ||
| 2429 | HLIB | HTL LOGISTICS INC | SCAC4 | ||
| 2430 | HLIC | HURST LOGISTICS INC | SCAC4 | ||
| 2431 | HLID | HURST LOGISTICS INC (WAREHOUSE) | SCAC4 | ||
| 2432 | HLIG | HALL, ROBERT ORIGINALS | SCAC4 | ||
| 2433 | HLIH | HOLT LOGISTICS INC | SCAC4 | ||
| 2434 | HLII | HARMEL IMPLEMENT INC | SCAC4 | ||
| 2435 | HLIQ | HULLISON & SON CARTAGE, INC | SCAC1 | ||
| 2436 | HLIV | HEINS LOGISTICS INC | SCAC4 | ||
| 2437 | HLIX | Hudson Logistics, Inc. | added 4/2007; eliminated 10/2009 | NAKINA | |
| 2438 | HLIX | HUDSON LOGISTICS, INC. | PWRC | ||
| 2439 | HLIX | HUDSON LOGISTICS INC | SCAC4 | ||
| 2440 | HLJB | HULL, JOHN B INC | SCAC4 | ||
| 2441 | HLJN | HOLLINGER, J L & SONS INC | SCAC4 | ||
| 2442 | HLJY | HARLEY, PHILIP J | SCAC4 | ||
| 2443 | HLK | Heli-Link | ICAO1 | ||
| 2444 | HLKA | HELKA EXPRESS INTERNATIONAL LTD | SCAC4 | ||
| 2445 | HLKC | H & L TRUCKING LLC | SCAC4 | ||
| 2446 | HLKD | HILKER, DENNIS R TRUCKING INC | SCAC4 | ||
| 2447 | HLKE | HLINKA ENTERPRISE INC | SCAC4 | ||
| 2448 | HLKG | HEATLINK GROUP INC | SCAC4 | ||
| 2449 | HLKJ | HILL TRUCKING INC | SCAC4 | ||
| 2450 | HLKN | HALLS TRUCKING | SCAC4 | ||
| 2451 | HLKQ | HALEAKALA TRANSPORTATION & WAREHOUS | SCAC4 | ||
| 2452 | HLKS | HALL, KEITH & SONS TRANSPORT LTD | SCAC4 | ||
| 2453 | HLLA | HOLLIS, ALVIN & COMPANY | SCAC4 | ||
| 2454 | HLLB | HOLLENBECK ENTERPRISES INC | SCAC4 | ||
| 2455 | HLLD | HOLLAND TESTERS LTD | SCAC4 | ||
| 2456 | HLLE | HOLLAND ENTERPRISES INC | SCAC4 | ||
| 2457 | HLLF | HALLS FREIGHTWAY INC | SCAC4 | ||
| 2458 | HLLG | HILL LOGISTICS INC | SCAC4 | ||
| 2459 | HLLH | HILL, GRAHAM | SCAC4 | ||
| 2460 | HLLI | HISS LOGISTICS LLC | SCAC4 | ||
| 2461 | HLLL | HOUSTON LOGISTICS LLC | SCAC4 | ||
| 2462 | HLLN | HOLLAND TRUCKING CO INC | SCAC4 | ||
| 2463 | HLLP | HALL TRUCKING | SCAC4 | ||
| 2464 | HLLQ | HILLSIDE LOGISTICS INC | SCAC4 | ||
| 2465 | HLLR | HOLLIE TRANSPORTATION | SCAC4 | ||
| 2466 | HLLS | HILLIUS TRUCKING | SCAC4 | ||
| 2467 | HLLU | HELLENIC LINES LIMITED | SCAC4 | ||
| 2468 | HLLW | HEYL LOGISTICS LLC | SCAC4 | ||
| 2469 | HLLX | Helm Financial Corp. | added 1/2002; 7/2005 | NAKINA | |
| 2470 | HLLX | Helm Locomotive Leasing | added 1/1993; 1/1994-7/2000; eliminated 4/2001 | NAKINA | |
| 2471 | HLLX | Helm Locomotive Leasing | added 1/93; 1/94-7/2000; eliminated 4/2001 | NRHS | |
| 2472 | HLLX | HELM LOCOMOTIVE LEASING (HELM FINANCIAL CORPORATION) | PWRC | ||
| 2473 | HLLX | Helm Financial Corporation | RSRV | ||
| 2474 | HLLX | HELM LOCOMOTIVE LEASING | SCAC4 | ||
| 2475 | HLLY | HILL, TERRY INC | SCAC4 | ||
| 2476 | HLM | Heli Medwest De Mexico | ICAO1 | ||
| 2477 | HLM | HOLCIM S.A. | RO | VKM | |
| 2478 | HLMA | HILL MEAT COMPANY | SCAC4 | ||
| 2479 | HLMC | HOLMES TRUCKING INC | SCAC4 | ||
| 2480 | HLMI | HALE MARITIME INC | SCAC4 | ||
| 2481 | HLMJ | HOLMAN MOVING SYSTEMS (NJ DIVISION) | SCAC4 | ||
| 2482 | HLML | H & L MOTORS LTD | SCAC4 | ||
| 2483 | HLMN | HOLMAN DISTRIBUTION CENTER OF OREGON, INC | SCAC1 | ||
| 2484 | HLMO | HOLMAN MOVING SYSTEMS | SCAC4 | ||
| 2485 | HLMV | HALL, MEL TRANSPORT LIMITED | SCAC4 | ||
| 2486 | HLMX | HELM Financial Corp. | added 10/1985; 1/1994-7/2005 | NAKINA | |
| 2487 | HLMX | H.L. Mills | 7/1930-7/1965; eliminated 4/1966 | NAKINA | |
| 2488 | HLMX | H.L. Mills | 4/38-7/65; eliminated 4/66 | NRHS | |
| 2489 | HLMX | HELM Financial Corp. | 1/94-7/2000 | NRHS | |
| 2490 | HLMX | *H.L. MILLS | PWRC | ||
| 2491 | HLMX | +HELM FINANCIAL CORPORATION | PWRC | ||
| 2492 | HLMX | Helm Financial Corporation | RSRV | ||
| 2493 | HLMX | HELM FINANCIAL CORPORATION | SCAC4 | ||
| 2494 | HLNA | HALL TRANSPORTATION OF GEORGIA INC | SCAC4 | ||
| 2495 | HLNC | HILLS INC | SCAC4 | ||
| 2496 | HLND | HIGHLAND EXPRESS | SCAC4 | ||
| 2497 | HLNE | Hillsboro and North Eastern Ry. Co. | 1/1975-1/1980; eliminated 7/1985 | NAKINA | |
| 2498 | HLNE | Hillsboro and North Eastern Ry. Co. | 1/75-1/80 | NRHS | |
| 2499 | HLNE | HILLSBORO & NORTH EASTERN RAILROAD CO. | PWRC | ||
| 2500 | HLNE | Hillsboro and North Eastern Railway | RSRV |