| 4601 | NOT | Linea Aerea Costa Norte | | | ICAO1 |
| 4602 | NOT | New Orleans Terminal | 1/1975-7/2005 | | NAKINA |
| 4603 | NOT | New Orleans Terminal Co. (Southern Ry. System) | 8/1920-7/1932 | | NAKINA |
| 4604 | NOT | New Orleans Terminal | 1/75-7/2000 | | NRHS |
| 4605 | NOT | NORFOLK SOUTHERN [SOUTHERN; NEW ORLEANS TERMINAL CO.] | | | PWRC |
| 4606 | NOT | New Orleans Terminal | | | RSRV |
| 4607 | NOTA | NETWORK ONE (1) TRANSPORTATION CORP | | | SCAC4 |
| 4608 | NOTC | NORTHEASTERN TRUCKING CO | | | PWRC |
| 4609 | NOTC | NINE ONE FIVE THREE-THREE FOUR | | | SCAC4 |
| 4610 | NOTD | NOBLE TRANSPORT LTD | | | SCAC3 |
| 4611 | NOTD | NINE ZERO SIX FIVE-ONE THREE TWO FO | | | SCAC4 |
| 4612 | NOTE | NORTH PENN TRANSPORTATION | | | SCAC4 |
| 4613 | NOTF | NORTH TEXAS FARM LINES | | | SCAC3 |
| 4614 | NOTG | NORSEMAN TRUCKING | | | SCAC3 |
| 4615 | NOTG | NORSEMEN TRUCKING INC | | | SCAC4 |
| 4616 | NOTI | NORTON TRANSPORT INC | | | SCAC3 |
| 4617 | NOTJ | NORTRUP PETROLEUM INC | | | SCAC3 |
| 4618 | NOTK | NORTON, RALPH L | | | SCAC3 |
| 4619 | NOTK | NORTON, RALPH L | | | SCAC4 |
| 4620 | NOTL | NORMS TRUCK LINE | | | SCAC3 |
| 4621 | NOTL | NINE ZERO ONE THREE-FOUR TWO TWO TW | | | SCAC4 |
| 4622 | NOTM | New Orleans, Texas & Mexico | 1/1975-1/1980 | | NAKINA |
| 4623 | NOTM | New Orleans, Texas & Mexico | 1/75-1/80 | | NRHS |
| 4624 | NOTM | UP [MISSOURI PACIFIC] [NEW ORLEANS, TEXAS & MEXICO RY.] | | | PWRC |
| 4625 | NOTM | New Orleans, Texas and Mexico | | | RSRV |
| 4626 | NOTM | NINE ONE TWO FIVE-THREE FOUR ZERO O | | | SCAC4 |
| 4627 | NOTM | New Orleans, Texas & Mexico | | USA | TRAFFIC |
| 4628 | NOTN | NOEL TRANSPORT INC | | | SCAC3 |
| 4629 | NOTN | NINE ONE TWO NINE-TWO FOUR NINE ZER | | | SCAC4 |
| 4630 | NOTO | NORTHERN COMMODITIES TRANSPORTATION | | | SCAC3 |
| 4631 | NOTO | Noto Railway | | J | TRAFFIC |
| 4632 | NOTP | NORTHERN LOGISTICS INC | | | SCAC4 |
| 4633 | NOTQ | NORTH EAST TRANSPORTATION INC | | | SCAC3 |
| 4634 | NOTR | NORTH STAR TRANSPORT | | | SCAC3 |
| 4635 | NOTR | NOTHERS | | | SCAC4 |
| 4636 | NOTS | NORRENBERNS TRUCK SERVICE, TKT, INC | | | SCAC3 |
| 4637 | NOTS | NORRENBERNS TRUCK SERVICE | | | SCAC4 |
| 4638 | NOTV | NORTHERN TRANSPORT LTD | | | SCAC3 |
| 4639 | NOTV | NINE ZERO ONE THREE-FIVE THREE NINE | | | SCAC4 |
| 4640 | NOTY | NOTTINGHAM COMPANY (A CORP) | | | SCAC3 |
| 4641 | NOU | Nordic Unmanned AS | Callsign: Nordun, | N | AVCODES |
| 4642 | NOUP | NEW ORLEANS UNION PASSENGER TERMINAL | | | PWRC |
| 4643 | NOV | Alitalia Team | IATA: RD, Callsign: Alitalia Team, Merged into Alitalia w.e.f. 01 August 2002. | I | AVCODES |
| 4644 | NOV | Avianova | IATA: RD, Callsign: Avianova, Merged into Alitalia Express during 1996. | I | AVCODES |
| 4645 | NOV | Nova Airlines | IATA: O9, Callsign: Novanile, IATA Prefix: 948, | SUD | AVCODES |
| 4646 | NOV | Nova Airline | IATA: M4 | | ICAO1 |
| 4647 | NOVA | NOVATION TRANSPORTATION INC | | | SCAC4 |
| 4648 | NOVABUS | NovaBus/TMC | | USA | TRAFFIC |
| 4649 | NOVAC | Novacarb | | FR | VKM |
| 4650 | NOVB | NOVATTO | | | SCAC4 |
| 4651 | NOVC | NOVA TRANSPORTATION SERVICES INC | | | SCAC3 |
| 4652 | NOVC | NOVA TRANSPORTATION SERVICES, INC | | | SCAC4 |
| 4653 | NOVD | NATIONAL OVERHEAD DOOR CO | | | SCAC4 |
| 4654 | NOVES | Novesia Mineralölhandelsges. mbH | | DE | VKM |
| 4655 | NOVF | NORTH VALLEY FARMS INC | | | SCAC3 |
| 4656 | NOVF | NINE ONE SEVEN EIGHT-SIX FIVE EIGHT | | | SCAC4 |
| 4657 | NOVI | NOVITSKE TRUCKING CORPORATION | | | SCAC3 |
| 4658 | NOVK | NOVIKOFF, PETER J | | | SCAC3 |
| 4659 | NOVK | NOVIK INC | | | SCAC4 |
| 4660 | NOVL | NOVA SCOTIA TRADING LTD LIBERIA | | | SCAC3 |
| 4661 | NOVO | NOVCO INC | | | SCAC4 |
| 4662 | NOVOG | Niederösterreichische Verkehrsorganisationsges.m.b.H | | A | TRAFFIC |
| 4663 | NOVOG | Niederösterreichische Verkehrsorganisationsgesellschaft mbH | | AT | VKM |
| 4664 | NOVP | NEW ORLEANS AND VICKSBURG PACKET CO | | | SCAC3 |
| 4665 | NOVP | NINE ONE SEVEN EIGHT-THREE SEVEN ON | | | SCAC4 |
| 4666 | NOVQ | NOVA TRUCKING SERVICE INC | | | SCAC3 |
| 4667 | NOVR | NOVA ENTERPRISES | | | SCAC3 |
| 4668 | NOVS | NOVAK TRUCKING SERVICE INC | | | SCAC3 |
| 4669 | NOVT | NORTH VICTORIA TRUCKING LTD | | | SCAC4 |
| 4670 | NOVU | NOVATRANS NOVA NATIE | | | SCAC4 |
| 4671 | NOVV | NOVALINK LOGISTICS (NEPTUNE SHIPPIN | | | SCAC4 |
| 4672 | NOVX | Novell Polymers Inc. | 7/2005 (not listed) | | NAKINA |
| 4673 | NOVX | NOVELL POLYMERS, INC. | | | PWRC |
| 4674 | NOVX | Novell Polymers | | | RSRV |
| 4675 | NOVX | NOVELL DISTRIBUTION INC | | | SCAC4 |
| 4676 | NOW | Royal Norwegian Air Force | Callsign: Norwegian, | N | AVCODES |
| 4677 | NOW | Royal Norwegian Air Force | | | ICAO1 |
| 4678 | NOW | Northern Ohio & Western Ry., Ltd. | added 10/1995; eliminated 4/1997; 7/2000-7/2005 | | NAKINA |
| 4679 | NOW | Northern Ohio & Western Ry., Ltd. | added 10/95; eliminated 4/97; 7/2000 | | NRHS |
| 4680 | NOW | NORTHERN OHIO & WESTERN RAILWAY, LTD. | | | PWRC |
| 4681 | NOW | Northern Ohio and Western Railway | | | RSRV |
| 4682 | NOW | NORTHERN OHIO & WESTERN RAILWAY LTD | | | SCAC4 |
| 4683 | NOWB | NORTHWESTERN BUSINESS TRAVEL | | | SCAC3 |
| 4684 | NOWC | N O W TRUCKING INC | | | SCAC4 |
| 4685 | NOWD | NORTHWESTERN EXHIBIT DRAGAGE CO | | | SCAC3 |
| 4686 | NOWD | NOW DELIVERY LLC | | | SCAC4 |
| 4687 | NOWE | NOW EXPRESS | | | SCAC4 |
| 4688 | NOWH | NORTHWESTERN WAREHOUSE COMPANY | | | SCAC3 |
| 4689 | NOWI | NORTHWEST TRUCK SERVICE | | | SCAC3 |
| 4690 | NOWJ | N O W TRUCKING | | | SCAC3 |
| 4691 | NOWK | N O W TRUCKING CO | | | SCAC3 |
| 4692 | NOWL | NOWELL, G R & SON, INC | | | SCAC3 |
| 4693 | NOWL | NOW & LATER TRANSPORTATION | | | SCAC4 |
| 4694 | NOWM | NORTHWEST MOVING SERVICES INC | | | SCAC3 |
| 4695 | NOWM | NORTHWEST MOVING SERVICES INC | | | SCAC4 |
| 4696 | NOWN | NORTHWEST TRANSPORTATION SERVICE IN | | | SCAC3 |
| 4697 | NOWN | NOW OR NEVER | | | SCAC4 |
| 4698 | NOWP | NORTHWEST PACKAGE DELIVERY CO | | | SCAC3 |
| 4699 | NOWQ | NORTHWEST CARRIERS INC | | | SCAC3 |
| 4700 | NOWR | NORTHWEST REFRIGERATION & SALES | | | SCAC3 |
