| 6701 | NVTK | NAVE TRUCK LINE | | | SCAC3 |
| 6702 | NVTL | NORTHLAND VALLEY TRANSFER LTD | | | SCAC3 |
| 6703 | NVTL | NAVARRO TRUCKING LLC | | | SCAC4 |
| 6704 | NVTN | NOVA TRANSPORTATION SERVICES INC | | | SCAC3 |
| 6705 | NVTN | NORTH VIEW TRANSPORTATION INC | | | SCAC4 |
| 6706 | NVTO | NAVTO TRUCKING INC | | | SCAC3 |
| 6707 | NVTP | NEVILLE TRANSPORTATION CORPORATION | | | SCAC3 |
| 6708 | NVTP | NOVATRIM INC | | | SCAC4 |
| 6709 | NVTR | NOVEMBER TRANS | | | SCAC3 |
| 6710 | NVTS | NEVADA TRANSPORT SPECIALISTS INC | | | SCAC3 |
| 6711 | NVTS | NEVADA TRANSPORT SPECIALISTS INC | | | SCAC4 |
| 6712 | NVTT | NEVITT MOVING & STORAGE INC | | | SCAC4 |
| 6713 | NVTU | NOVOTRANS-VOSTOK JSC | | | SCAC4 |
| 6714 | NVUB | NAVIERA URBASA, S. A. | | | SCAC3 |
| 6715 | NVV | Niederrheinwerke Viersen GmbH | City: Viersen | D | TRAFFIC |
| 6716 | NVVN | NAVIVAN CORP | | | SCAC4 |
| 6717 | NVWC | NOR-VAN WOODCRAFTS | | | SCAC4 |
| 6718 | NVWT | NAPA VALLEY WINE TRAIN | | | PWRC |
| 6719 | NVXC | NAVIMAX CORPORATION | | | SCAC4 |
| 6720 | NVXL | NAVIX LINE, LTD. | | | SCAC3 |
| 6721 | NVXL | NAVIX LINE, LTD. | | | SCAC4 |
| 6722 | NVXN | NAVILA TRANSPORTATION INC | | | SCAC4 |
| 6723 | NVY | Royal Navy | Callsign: Navy, | GB | AVCODES |
| 6724 | NVY | Royal Navy | | | ICAO1 |
| 6725 | NVYS | NAVY SPLENDOR COMPANIA NAVIERA SA, | | | SCAC3 |
| 6726 | NVYV | NAVY VAN LINES LLC | | | SCAC4 |
| 6727 | NVZL | NAVIERA VEN-AZUL CA | | | SCAC3 |
| 6728 | NVZL | NAVARRO ZAMORA, RAUL | | | SCAC4 |
| 6729 | NW | Northwest Airlines, Inc. | ICAO: NWA, Callsign: Northwest, IATA Prefix: 012, Merged into Delta Air Lines DL/DAL | USA | AVCODES |
| 6730 | NW | Northwest Orient Airlines, Inc. | ICAO: NWA, Callsign: Northwest, IATA Prefix: 012, Name change to Northwest Airlines | USA | AVCODES |
| 6731 | NW | Norfolk Southern Ry. Co. (Norfolk Southern) | 7/2005 | | NAKINA |
| 6732 | NW | Norfolk Southern Ry. Co. | added 1/1991; 1/1994-7/2000 | | NAKINA |
| 6733 | NW | Norfolk and Western Ry. | eliminated 1/1991 | | NAKINA |
| 6734 | NW | Norfolk and Western Ry. Co. (N&W Dist.) | 1/1975-1/1980 | | NAKINA |
| 6735 | NW | Norfolk and Western Ry. Co. (N&W Dist.) | 1/75-1/80 | | NRHS |
| 6736 | NW | Norfolk and Western Ry. | eliminated 1/91 | | NRHS |
| 6737 | NW | Norfolk Southern Ry. Co. | added 1/91; 1/94-7/2000 | | NRHS |
| 6738 | NW | NORFOLK SOUTHERN RAILWAY COMPANY [NORFOLK & WESTERN RY] | | | PWRC |
| 6739 | NW | Norfolk and Western Railway (Norfolk Southern) | | | RSRV |
| 6740 | NW | NORFOLK AND WESTERN RAILWAY | | | SCAC4 |
| 6741 | NW | Norfolk and Western | | USA | TRAFFIC |
| 6742 | NW&B | New York, Westchester & Boston Ry. Co. | 7/1923-7/1936 | | NAKINA |
| 6743 | NW&B | NEW YORK, WINCHESTER & BOSTON RWY. CO. | | | PWRC |
| 6744 | NWA | Northwest Airlines, Inc. | IATA: NW, Callsign: Northwest, IATA Prefix: 012, Merged into Delta Air Lines DL/DAL | USA | AVCODES |
| 6745 | NWA | Northwest Orient Airlines, Inc. | IATA: NW, Callsign: Northwest, IATA Prefix: 012, Name change to Northwest Airlines | USA | AVCODES |
| 6746 | NWA | Northwest Airlines | IATA: NW | | ICAO1 |
| 6747 | NWA | | | | TRAFFIC |
| 6748 | NWAB | NWA TRANSPORTATION | | | SCAC4 |
| 6749 | NWAE | NORTHWEST ARKANSAS TRUCK AND EQUIPM | | | SCAC3 |
| 6750 | NWAG | NORTHWEST AGRIGULTURAL COOPERATIVE | | | SCAC3 |
| 6751 | NWAI | NICKELS BOAT WORKS INC | | | SCAC4 |
| 6752 | NWAJ | NU-WAY TRANSPORTATION SERVICE INC | | | SCAC3 |
| 6753 | NWAK | NEW-ARK TRUCKING INC | | | SCAC3 |
| 6754 | NWAK | NORTHWEST FORWARDERS INC | | | SCAC4 |
| 6755 | NWAM | NOW AMERICA | | | SCAC3 |
| 6756 | NWAM | NINE ONE FIVE TWO-ZERO ZERO TWO THR | | | SCAC4 |
| 6757 | NWAP | NORTHWEST ARKANSAS TRANSPORTATION I | | | SCAC3 |
| 6758 | NWAP | NEWELL TRANSPORTATION LLC | | | SCAC4 |
| 6759 | NWAS | NEWTON & SONS, INC | | | SCAC3 |
| 6760 | NWAW | NORTHWEST AIRLINES (AGENT AIT WORLD | | | SCAC4 |
| 6761 | NWAX | BP Global Special Products (America) Inc. | added 1/2002; eliminated 1/2004; 7/2005 (not listed) | | NAKINA |
| 6762 | NWAX | Dussek Campbell, Inc. | added 7/2000; 7/2000; eliminated 1/2002 | | NAKINA |
| 6763 | NWAX | National Wax Co. | added 4/1962; 7/1965-1/1994; eliminated 7/2000 | | NAKINA |
| 6764 | NWAX | National Wax Co. | added 4/62; 7/65-1/94; eliminated 7/2000 | | NRHS |
| 6765 | NWAX | Dussek Campbell, Inc. | added 7/2000; 7/2000 | | NRHS |
| 6766 | NWAX | BP GLOBAL SPECIAL PRODUCTS (AMERICA), INC. [DUSSEK CAMPBELL, INC.; NATIONAL WAX COMPANY] | | | PWRC |
| 6767 | NWAX | National Wax (BP Global Special Products) | | | RSRV |
| 6768 | NWAX | NATIONAL WAX CO | | | SCAC3 |
| 6769 | NWAY | NEWAY-LOVE DISTRIBUTION INC | | | SCAC3 |
| 6770 | NWB | Nigeria Air | Callsign: Nigeria Air, Planned start-up of new National Carrier. | WAN | AVCODES |
| 6771 | NWB | NordWestBahn GmbH | Osnabrück (Connex-Gruppe > Veolia Verkehr) | D | privat-bahn.de |
| 6772 | NWB | Nordwest-Bahn | | D | TRAFFIC |
| 6773 | NWB | NordWestBahn | | DE | VKM |
| 6774 | NWBE | NATIONWIDE BROKERAGE | | | SCAC3 |
| 6775 | NWBG | NATIONWIDE BROKERAGE INC | | | SCAC3 |
| 6776 | NWBL | N W BOTTLING CO | | | SCAC3 |
| 6777 | NWBQ | NEW BOSTON TRACTOR & EQUIPMENT SALE | | | SCAC3 |
| 6778 | NWBQ | NEWALTA CORPORATION | | | SCAC4 |
| 6779 | NWBR | NELSON-WESTERBERG, INC | | | SCAC3 |
| 6780 | NWBR | NELSON-WESTERBE | | | SCAC4 |
| 6781 | NWBS | N & W BROKERAGE SERVICE | | | SCAC3 |
| 6782 | NWBU | NIJHOF WASSINK B.V. | | NL | BIC |
| 6783 | NWBU | NIJHOF-WASSINK B V | | | SCAC4 |
| 6784 | NWC | New ACS Ltd. | Callsign: Newflight, | EAT | AVCODES |
| 6785 | NWC | Aircompany North-West LLC | IATA: 0E, Callsign: West Way, | RUS | AVCODES |
| 6786 | NWC | NordWestCargo GmbH | Osnabrück (Connex-Gruppe > Veolia Verkehr) | D | privat-bahn.de |
| 6787 | NWC | NordWestCargo GmbH | | DE | VKM |
| 6788 | NWCA | NEW BRIDGE LOGISTICS INC | | | SCAC4 |
| 6789 | NWCB | NEWCOMBS FUEL OIL SERVICE | | | SCAC4 |
| 6790 | NWCC | NORTHWEST CONTRACT CARRIERS INC | | | SCAC3 |
| 6791 | NWCD | NETWORK COMMUNICATIONS INC | | | SCAC4 |
| 6792 | NWCE | NEW CENTURY TRANSPORT LLC | | | SCAC4 |
| 6793 | NWCF | NORTH/WEST CONNECTION INC | | | SCAC3 |
| 6794 | NWCF | NATIONWIDE TRANSPORTATION SERVICES | | | SCAC4 |
| 6795 | NWCG | NOAHS WAREHOUSE & CARTAGE INC | | | SCAC3 |
| 6796 | NWCG | NORTHWEST CASTING SERVICE INC | | | SCAC4 |
| 6797 | NWCH | NORWICH TRANSPORTATION | | | SCAC4 |
| 6798 | NWCI | NATIONWIDE CARTAGE SERVICE INC | | | SCAC3 |
| 6799 | NWCJ | NEW CONCEPT LOGISTICS LLC | | | SCAC4 |
| 6800 | NWCM | NEWCOMER TRUCKING INC | | | SCAC3 |
