| 5801 | NSSG | NORTH STATE STORAGE CO INC | | | SCAC3 |
| 5802 | NSSH | NORSTAR SHIPPING AGENCY | | | SCAC3 |
| 5803 | NSSH | NEW SUNSHINE TRANSPORTATION INC | | | SCAC4 |
| 5804 | NSSI | NILES TRANSPORTATION INC | | | SCAC3 |
| 5805 | NSSI | NOGALES SYSTEM SALES INC | | | SCAC4 |
| 5806 | NSSL | NORDIC SATURN SHIPPING COMPANY LIMI | | | SCAC4 |
| 5807 | NSSM | NORDIC SOLAR SHIPPING COMPANY LIMIT | | | SCAC4 |
| 5808 | NSSN | NISSAN TITLE DISTRIBUTING CORP | | | SCAC3 |
| 5809 | NSSO | NORDIC SCORPIUS SHIPPING COMPANY LI | | | SCAC4 |
| 5810 | NSSQ | NINE ONE TWO EIGHT-EIGHT SIX SIX TW | | | SCAC4 |
| 5811 | NSSR | NORTH SHORE SCENIC RAILROAD | | | PWRC |
| 5812 | NSSR | NORTHERN STAR SERVICES INC | | | SCAC4 |
| 5813 | NSSS | NORTHERN STAR SERVICES INC | | | SCAC4 |
| 5814 | NSST | NORTHSTAR SHIPPING & TRADING INC | | | SCAC4 |
| 5815 | NSSU | NAM SUNG SHIPPING CO LTD | | ROK | BIC |
| 5816 | NSSU | NAM SUNG SHIPPING CO LTD | | | SCAC4 |
| 5817 | NSSW | NEW SUCCESS SHIPPING INC | | | SCAC4 |
| 5818 | NSSX | National Salvage and Service Corp. | added 7/1990; eliminated 7/1992; 1/1994-7/2005 (not listed) | | NAKINA |
| 5819 | NSSX | National Salvage and Service Corp. | added 7/90; eliminated 7/92; 1/94-7/2000 | | NRHS |
| 5820 | NSSX | NATIONAL SALVAGE & SERVICE CORPORATION | | | PWRC |
| 5821 | NSSX | National Salvage and Service Corporation | | | RSRV |
| 5822 | NSSX | NATIONAL SALVAGE AND SERVICE CORPOR | | | SCAC4 |
| 5823 | NSSY | NOLAN SMITH & SONS INC | | | SCAC4 |
| 5824 | NST | Aviacion Ejecutiva Del Noroeste, S.A. de C.V. | Callsign: Avinoreste, | MEX | AVCODES |
| 5825 | NST | NATIONAL STARCH CO. | | | PWRC |
| 5826 | NSTA | NEW SUPERIOR TRANSPORTATION INC | | | SCAC3 |
| 5827 | NSTA | NORTH STAR TRANSPORT LTD | | | SCAC4 |
| 5828 | NSTB | N & S TRUCKING | | | SCAC3 |
| 5829 | NSTB | NESTIBO AGRA INC | | | SCAC4 |
| 5830 | NSTCM | Nyon - St-Cergue - Morez | | CH | TRAFFIC |
| 5831 | NSTCM | Compagnie du chemin de fer Nyon-St-Cergue-Morez | | CH | VKM |
| 5832 | NSTE | NORTH SHORE TRANSPORTATION SERVICES | | | SCAC3 |
| 5833 | NSTE | NORTH SHORE TRANSPORTATION SERVICES | | | SCAC4 |
| 5834 | NSTF | NINE ONE SEVEN THREE-ONE FIVE ONE T | | | SCAC4 |
| 5835 | NSTG | NORTHSIDE STORAGE | | | SCAC3 |
| 5836 | NSTG | NORTH STAR TRANSPORT GROUP INC | | | SCAC4 |
| 5837 | NSTI | NORTH SIDE TRANSFER COMPANY INC | | | SCAC3 |
| 5838 | NSTI | NORTH SHORE TRANSPORT INC | | | SCAC4 |
| 5839 | NSTO | NORTH STATE TRANSPORT | | | SCAC3 |
| 5840 | NSTO | NORTH STATE TRANSPORT | | | SCAC4 |
| 5841 | NSTP | NORTHSTAR TRANSPORTATION, INC | | | SCAC3 |
| 5842 | NSTP | NEW STAR TRANSPORT LTD | | | SCAC4 |
| 5843 | NSTQ | NASH & SONS TRUCK BROKERAGE INC | | | SCAC4 |
| 5844 | NSTR | NORTH STATE TRANSPORT LLC | | | SCAC4 |
| 5845 | NSTS | NORTH-SOUTH TRANSPORT LTD | | | SCAC3 |
| 5846 | NSTS | NORTH-SOUTH TRANSPORT LTD | | | SCAC4 |
| 5847 | NSTU | NEPAL SHIPPING AND MULTI MODAL TRANSPORT PVT LTD | | NEP | BIC |
| 5848 | NSTU | NORTH SOUTH CONTAINERS LINES LIMITE | | | SCAC4 |
| 5849 | NSTX | Consumers Energy Co. | added 4/2007 | | NAKINA |
| 5850 | NSTX | North Star Steel Co. | added 10/1995; 7/2000; eliminated 4/2003; added 1/2005; 7/2005; eliminated 1/2006 | | NAKINA |
| 5851 | NSTX | North Star Steel Co. | added 10/95; 7/2000 | | NRHS |
| 5852 | NSTX | *NORTH STAR STEEL COMPANY | | | PWRC |
| 5853 | NSTX | +CONSUMERS ENERGY CO. | | | PWRC |
| 5854 | NSTX | North Star Steel | | | RSRV |
| 5855 | NSTX | CONSUMERS ENERGY COMPANY | | | SCAC4 |
| 5856 | NSTY | NORTH SOUTH TRUCKING | | | SCAC4 |
| 5857 | NSUC | NADEAU SUGAR CAMP | | | SCAC4 |
| 5858 | NSUM | NILSON VAN & STORAGE (SUMTER OFFICE | | | SCAC4 |
| 5859 | NSUT | N E S TRANSPORTATION INC | | | SCAC3 |
| 5860 | NSVA | NORTH STAR VAN LINES LLC | | | SCAC4 |
| 5861 | NSVI | NATIONAL SERVICE LOGISTICS INC | | | SCAC4 |
| 5862 | NSVL | NSL, INC | | | SCAC3 |
| 5863 | NSVL | NSL INC | | | SCAC4 |
| 5864 | NSVN | NORTH SHORE VAN LINES | | | SCAC3 |
| 5865 | NSVQ | NORTH STAR VAN AND STORAGE INC | | | SCAC3 |
| 5866 | NSVS | NAUM SERVICE STORAGE CO INC | | | SCAC3 |
| 5867 | NSVT | NASHVILLE TRUCKING CO INC | | | SCAC3 |
| 5868 | NSW | Country Connection Airlines Pty Ltd. | IATA: XL, Designator XL recalled by IATA | AUS | AVCODES |
| 5869 | NSW | Ansett Airlines of New South Wales | Callsign: Newsouth, | AUS | AVCODES |
| 5870 | NSW | Norwegian Air Sweden AB | IATA: LE, Callsign: Nordic, IATA Prefix: 348, | S | AVCODES |
| 5871 | NSW | Country Connection Airlines | | | ICAO1 |
| 5872 | NSW | New South Wales Government Railways | | AUS | TRAFFIC |
| 5873 | NSWA | NEW STAR WAY | | | SCAC4 |
| 5874 | NSWQ | N S W CARRIERS CORP | | | SCAC3 |
| 5875 | NSWT | New South Wales TrainLink | | AUS | TRAFFIC |
| 5876 | NSWU | NORDDEUTSCHE SEEKABELWERKE GMBH | | D | BIC |
| 5877 | NSWX | NEVERSWEAT & WASHOE RAILROAD | | | PWRC |
| 5878 | NSX | Niagara Smelting Corp. | 7/1930-1/1946 | | NAKINA |
| 5879 | NSX | Niagara Smelting Corp. | Apr-38 | | NRHS |
| 5880 | NSX | *NIAGARA SMELTING CO. | | | PWRC |
| 5881 | NSX | *NORFOLK SOUTHERN CORPORATION | | | PWRC |
| 5882 | NSXI | NORTHSTAR EXPRESS INC | | | SCAC3 |
| 5883 | NSXI | NSX INC | | | SCAC4 |
| 5884 | NSXJ | NON STOP XPRESS | | | SCAC4 |
| 5885 | NSXO | NS TRANSPORT | | | SCAC4 |
| 5886 | NSXP | NORTH STATE EXPRESS INC | | | SCAC4 |
| 5887 | NSXR | NINETY SIX (96) EXPRESS INC | | | SCAC3 |
| 5888 | NSXS | NEW SOUTH EXPRESS INC | | | SCAC3 |
| 5889 | NSXS | NEW SOUTH EXPRESS INC | | | SCAC4 |
| 5890 | NSXU | NORFOLK SOUTHERN CORPORATION | | | SCAC4 |
| 5891 | NSXZ | NORFOLK SOUTHERN RAILWAY COMPANY | | | PWRC |
| 5892 | NSXZ | Norfolk Southern Railway | | | RSRV |
| 5893 | NSXZ | NORFOLK SOUTHERN RAILWAY COMPANY (N | | | SCAC4 |
| 5894 | NSY | Shandong Nanshan International Flight Co., Ltd | Callsign: Qunying, | PRC | AVCODES |
| 5895 | NSYU | NEW SILK ROAD INTERMODAL (SICHUAN) CO.,LTD | | PRC | BIC |
| 5896 | NSZ | Norwegian Air Sweden AOC AB | IATA: D8, Callsign: Norlight, ICAO Callsign changed to Rednose. | S | AVCODES |
| 5897 | NSZ | Norwegian Air Sweden AOC AB | IATA: D8, Callsign: Rednose, ICAO Callsign changed from Norlight. | S | AVCODES |
| 5898 | NSZ | NORFOLK SOUTHERN RAILWAY COMPANY | | | PWRC |
| 5899 | NSZ | Norfolk Southern Railway | | | RSRV |
| 5900 | NSZ | NORFOLK SOUTHERN RAILWAY COMPANY (N | | | SCAC4 |
