| 2801 | NHKE | NIGHTHAWK ENTERPRISES | | | SCAC3 |
| 2802 | NHKF | NIGHTHAWK FLATBED TRANSPORT | | | SCAC4 |
| 2803 | NHKT | NIGHT HAWK TRANSPORT INC | | | SCAC3 |
| 2804 | NHL | Northumbria Helicopters Limited | Callsign: Northumbria, | GB | AVCODES |
| 2805 | NHL | Northumbria Helicopters | | | ICAO1 |
| 2806 | NHLA | NEWTOWN HOLDINGS LTD | | | SCAC4 |
| 2807 | NHLE | NIHLES TRUCKING | | | SCAC3 |
| 2808 | NHLG | NORTH IDAHO ENERGY LOGS INC | | | SCAC4 |
| 2809 | NHLI | N H L INC | | | SCAC3 |
| 2810 | NHLI | NEWHOPE LOGISTICS INC | | | SCAC4 |
| 2811 | NHLL | NATIONWIDE HAULING LLC | | | SCAC4 |
| 2812 | NHLM | NORTHLAND METALS TRANSPORTATION INC | | | SCAC4 |
| 2813 | NHLT | NORTHLAND TRANSPORT INC | | | SCAC4 |
| 2814 | NHLV | NHL DEVELOPMENT CO LTD | | | SCAC4 |
| 2815 | NHMC | NORTH AMERICAN TAPES LLC | | | SCAC4 |
| 2816 | NHMK | NEW HOME MADE KOSHER BAKERY | | | SCAC4 |
| 2817 | NHN | Mongolyn Alt Mak Co., Ltd | | MGL | AVCODES |
| 2818 | NHN | New Hampshire Northcoast Corp. | added 7/1987; eliminated 1/1992; 1/1994-7/2005 | | NAKINA |
| 2819 | NHN | New Hampshire Northcoast Corp. | added 7/87; eliminated 1/92; 1/94-7/2000 | | NRHS |
| 2820 | NHN | NEW HAMPSHIRE NORTHCOAST CORP. | | | PWRC |
| 2821 | NHN | New Hampshire Northcoast Corporation | | | RSRV |
| 2822 | NHN | New Hampshire Northcoast Corp. | | USA | TRAFFIC |
| 2823 | NHN | NHN spol. s r.o. | | CZ | VKM |
| 2824 | NHOI | NASHUA HOMES OF IDAHO INC | | | SCAC4 |
| 2825 | NHOP | NEW HOPE STEAM RAILWAY, INC. | | | PWRC |
| 2826 | NHOP | NEW HOPE & IVYLAND RAILROAD | | | SCAC3 |
| 2827 | NHOS | NATIONAL HOT SHOT INC | | | SCAC3 |
| 2828 | NHOT | NATIONAL HORSE TRANSFER | | | SCAC3 |
| 2829 | NHPC | NORMAC ADHESIVE PRODUCTS INC | | | SCAC4 |
| 2830 | NHPE | NIGHT HAWK PACKAGE EXPRESS INC | | | SCAC3 |
| 2831 | NHPM | NORTHERN HEAT PUMP | | | SCAC4 |
| 2832 | NHPO | NATIONAL HORSE PRODUCTS | | | SCAC3 |
| 2833 | NHPO | NORTH 60 PETRO LTD | | | SCAC4 |
| 2834 | NHPT | NHP TRUCKING | | | SCAC4 |
| 2835 | NHPW | NIKE SHIPPING & TRADING CO LTD | | | SCAC4 |
| 2836 | NHR | Nuevo Morizonte Internacional S.A. de C.V. | Callsign: Nuevo Horizonte, | MEX | AVCODES |
| 2837 | NHR | Nuevo Horizonte Internacional | | | ICAO1 |
| 2838 | NHRC | NEWMAN HAAS RACING | | | SCAC4 |
| 2839 | NHRR | New Hope & Ivyland Rail Road | added 4/1992; 1/1994; eliminated 1/1995; 7/2000; added 4/2001; eliminated 10/2002; 7/2005 | | NAKINA |
| 2840 | NHRR | New Hope & Ivyland Rail Road d/b/a Bucks County Railroad Preservation and Restoration Corp. | added 10/1991; eliminated 4/1992 | | NAKINA |
| 2841 | NHRR | New Hope & Ivyland Rail Road d/b/a Bucks County Railroad Preservation and Restoration Corp. | added 10/91; eliminated 4/92 | | NRHS |
| 2842 | NHRR | New Hope & Ivyland Rail Road | added 4/92; 1/94; eliminated 1/95; 7/2000; added 4/2001 | | NRHS |
| 2843 | NHRR | NEW HOPE & IVYLAND RAIL ROAD | | | PWRC |
| 2844 | NHRR | New Hope and Ivyland Railroad | | | RSRV |
| 2845 | NHRR | NEW HOPE & IVYLAND RAILROAD | | | SCAC4 |
| 2846 | NHRR | New Hope & Ivyland Rail Road | | USA | TRAFFIC |
| 2847 | NHRX | New Haven International Rail Terminal & Transportation Co., LLC | added 1/2004; eliminated 4/2004; 7/2005 (not listed) | | NAKINA |
| 2848 | NHRX | NEW HAVEN INTERNATIONAL RAIL TERMINAL & TRANSPORTATION CO., LLC | | | PWRC |
| 2849 | NHRX | NEW HAVEN NATIONAL RAIL TERMINAL & | | | SCAC4 |
| 2850 | NHS | Helisys Japan Inc. | | J | AVCODES |
| 2851 | NHSC | NIGHTHAWK SPECIAL COMMODITIES | | | SCAC4 |
| 2852 | NHSN | NORTHERN SHEEN | | | SCAC4 |
| 2853 | NHSO | NEVADA HOT SHOT | | | SCAC4 |
| 2854 | NHSP | NORTH STAR COOP | | | SCAC4 |
| 2855 | NHSR | NORTH SHORE CORE | | | SCAC4 |
| 2856 | NHST | NEW HORIZONS TRANSPORT | | | SCAC3 |
| 2857 | NHST | NORTHQUIP MANUFACTURING | | | SCAC4 |
| 2858 | NHT | New Heights 291 (PTY) Ltd. | Callsign: Newheights, | ZA | AVCODES |
| 2859 | NHT | New Heights 291 | | | ICAO1 |
| 2860 | NHT | Neftekhimtrans - Société russe Neftekhimtrans, Entreprise d’Etat | | RU | VKM |
| 2861 | NHTA | NEW HAVEN TRANSPORT LLC | | | SCAC4 |
| 2862 | NHTB | NEW HORIZON TOURS | | | SCAC3 |
| 2863 | NHTB | NORTHERN TOBOGGAN & SLED | | | SCAC4 |
| 2864 | NHTC | NORTON & HAINES TRANSPORTATION CO I | | | SCAC3 |
| 2865 | NHTE | NORIEGA HERNANDEZ, TEODORO | | | SCAC4 |
| 2866 | NHTG | NASHVILLE TRIAXLE | | | SCAC4 |
| 2867 | NHTI | NORTHERN HILLS TRANSPORT INC | | | SCAC3 |
| 2868 | NHTL | NEW HOPE TRANSPORT LTD | | | SCAC3 |
| 2869 | NHTL | NEW HOPE TRANSPORT LTD | | | SCAC4 |
| 2870 | NHTN | NEW HORIZONS TRANSPORTATION SPECIAL | | | SCAC4 |
| 2871 | NHTP | NEW HOPE TRANSPORT | | | SCAC4 |
| 2872 | NHTQ | NEW HOLLAND TRANSPORT INC | | | SCAC4 |
| 2873 | NHTR | NORTHERN HEMISPHERE TRUCKING | | | SCAC3 |
| 2874 | NHTR | NEW HOLLAND TIRE INC | | | SCAC4 |
| 2875 | NHTR | NH-TRANS, a.s. | | CZ | VKM |
| 2876 | NHTS | NEWHOUSE & HUTCHINS TOWING SERVICE, | | | SCAC3 |
| 2877 | NHTS | NAMAHA TRANSPORT SERVICES INC | | | SCAC4 |
| 2878 | NHTT | NEW HORIZON TRANSPORT LTD | | | SCAC4 |
| 2879 | NHTW | NORTHERN HEMISPHERE TRUCKING | | | SCAC3 |
| 2880 | NHUU | NORFOLK SOUTHERN CORP | | | SCAC4 |
| 2881 | NHV | NHV Aviation | | GH | AVCODES |
| 2882 | NHV | New Hampshire and Vermont Railroad | Real: NHVT | USA | TRAFFIC |
| 2883 | NHVD | NEW HAVEN | | | SCAC4 |
| 2884 | NHVT | New Hampshire and Vermont R.R. Co. | added 7/1990; 1/1994; eliminated 1/2000; 7/2000-7/2005 | | NAKINA |
| 2885 | NHVT | New Hampshire and Vermont R.R. Co. | added 7/90; 1/94; eliminated 1/2000; 7/2000 | | NRHS |
| 2886 | NHVT | NEW HAMPSHIRE & VERMONT RAILROAD COMPANY | | | PWRC |
| 2887 | NHVT | New Hampshire and Vermont Railroad | | | RSRV |
| 2888 | NHVT | NEW HAMPSHIRE AND VERMONT RAILROAD | | | SCAC3 |
| 2889 | NHVT | NEW HAMPSHIRE AND VERMONT RAILROAD | | | SCAC4 |
| 2890 | NHVX | East Carolina Chapter National Railway Historical Society | 7/2005 (not listed) | | NAKINA |
| 2891 | NHVX | NATIONAL RAILWAY HISTORICAL SOCIETY (EAST CAROLINA CHAPTER) - NEW HOPE VALLEY RAILROAD MUSEUM | | | PWRC |
| 2892 | NHVX | East Carolina Chapter National Railway Historical Society | | | RSRV |
| 2893 | NHVX | EAST CAROLINA CHAPTER NATIONAL RAIL | | | SCAC4 |
| 2894 | NHWB | NORTH WEST TIGER TRANSPORT | | | SCAC4 |
| 2895 | NHWC | NEW HIGHWAY CARRIER, INC | | | SCAC3 |
| 2896 | NHWC | NORTHWEST CARRIERS INC | | | SCAC4 |
| 2897 | NHWE | NATIONAL HIGHWAY EXPRESS INC | | | SCAC3 |
| 2898 | NHWE | NATIONAL HIGHWAY EXPRESS CO | | | SCAC4 |
| 2899 | NHWF | NORTH WIND FREIGHT SYSTEMS INC | | | SCAC4 |
| 2900 | NHWS | NIGHTHAWK SHIPPING LLC | | | SCAC4 |
