| 1 | ND | Airlink Limited | IATA Prefix: 159, Established in 1989 and started scheduled operations in June 1990. Ceased operations on 27 July 2007. | PNG | AVCODES |
| 2 | ND | Airline (PTY) Ltd. | | AUS | AVCODES |
| 3 | ND | Inter-Canadian | ICAO: ICN, Designator ND recalled by IATA | CDN | AVCODES |
| 4 | ND | Sky Wings Airlines S.A. | ICAO: GSW, Callsign: Arrow Jet, Founded in 2004. Merged with the Ukrainian airline Khors Aircompany on 1 December 2012. | GR | AVCODES |
| 5 | ND | Nordair Ltd. | ICAO: NDR, Callsign: Nordair, | CDN | AVCODES |
| 6 | ND | FMI Air Ltd. | ICAO: FMI, Callsign: Gecko, ICAO callsign changed from First Myanmar. | MYA | AVCODES |
| 7 | ND | Nordic Aviation Group AS d/b/a Nordica | ICAO: NDA, Callsign: Nordica Air, All flights operated under LOT Polsih Airlines AOC (LO/LOT) w.e.f. 19 November 2016. Established by Nordic Aviation Group on 25 September 2015 as Nordic Aviation Group. | EST | AVCODES |
| 8 | NDA | Northern Airways | Callsign: Northern Dakota, | USA | AVCODES |
| 9 | NDA | Nordic Aviation Group AS d/b/a Nordica | IATA: ND, Callsign: Nordica Air, All flights operated under LOT Polsih Airlines AOC (LO/LOT) w.e.f. 19 November 2016. Established by Nordic Aviation Group on 25 September 2015 as Nordic Aviation Group. | EST | AVCODES |
| 10 | NDA | Northern Airways | | | ICAO1 |
| 11 | NDAL | NADEAU, ALFRED L | | | SCAC4 |
| 12 | NDAM | NORDIC AMERICAN SHIPPING INC. | | | SCAC3 |
| 13 | NDAM | NORDIC AMERICAN SHIPPING INC. | | | SCAC4 |
| 14 | NDAR | NEED-A-RIDE TRANSPORTATION CO | | | SCAC3 |
| 15 | NDAR | NORTH DAKOTA MUSEUM OF ART | | | SCAC4 |
| 16 | NDAU | INTERNATIONAL NUCLEAR SERVICES LTD | | GB | BIC |
| 17 | NDAU | INTERNATIONAL NUCLEAR SERVICES LTD | | | SCAC4 |
| 18 | NDAX | Ouachita Fertilizer & Grain Co. | added 1/1962; 7/1965; eliminated 10/1965 | | NAKINA |
| 19 | NDAX | Ouachita Fertilizer & Grain Co. | added 1/62; 7/65; eliminated 10/65 | | NRHS |
| 20 | NDAX | OUACHITA FERTILIZER & GRAIN CO. | | | PWRC |
| 21 | NDAY | NEW STANDARD AG INC | | | SCAC4 |
| 22 | NDBI | NORTHERN DRY-BULK INC | | | SCAC4 |
| 23 | NDBS | NADA BUS INC | | | SCAC3 |
| 24 | NDBT | N D B TRUCKING LTD | | | SCAC4 |
| 25 | NDC | Nordic East Airlink AB | IATA: 7I, Callsign: Nordic, IATA designator changed to LF w.e.f. 30 December 2002. Designator changed from 9R* | S | AVCODES |
| 26 | NDC | Nordic East Airlink AB | IATA: 9R, Callsign: Nordic, Designator changed to 7I | S | AVCODES |
| 27 | NDC | Nordic East Airlink AB | IATA: LF, Callsign: Nordic, Name changed to Nordic Airlink Holding AB dba FlyNordic. Designator changed from 9R*. IATA designator changed from 7I w.e.f. 30 December 2002. | S | AVCODES |
| 28 | NDC | Nordic Airlink Holding AB dba FlyNordic | IATA: LF, Callsign: Nordic, Purchased by and merged in Norwegian Air Shuttle. Name changed from Nordic East Airlink AB. Designator changed from 9R*. IATA designator changed from 7I w.e.f. 30 December 2002. | S | AVCODES |
| 29 | NDC | FlyNordic | IATA: LF | | ICAO1 |
| 30 | NDCE | NORDIC ENTERPRISES INC | | | SCAC3 |
| 31 | NDCE | NORDIC ENTERPRISES INC | | | SCAC4 |
| 32 | NDCF | N D C FREIGHT INC | | | SCAC3 |
| 33 | NDCH | NEEDHAMS MARINE LIMITED | | | SCAC4 |
| 34 | NDCI | NATIONAL DISTRIBUTING CO INC | | | SCAC3 |
| 35 | NDCL | NADCLOGISTICS INC | | | SCAC4 |
| 36 | NDCN | NATIONAL DISTRIBUTING CO INC | | | SCAC4 |
| 37 | NDCO | NATIONWIDE DISTRIBUTORS INC | | | SCAC3 |
| 38 | NDCO | NADO INC | | | SCAC4 |
| 39 | NDCR | N.D.C. R.R. Co. | 1/1994-7/2005 | | NAKINA |
| 40 | NDCR | N.D.C. R.R. Co. | 1/94-7/2000 | | NRHS |
| 41 | NDCR | N.D.C. RAILROAD CO. | | | PWRC |
| 42 | NDCR | NDC Railroad | | | RSRV |
| 43 | NDCR | N D C RAILROAD COMPANY | | | SCAC3 |
| 44 | NDCR | Northampton Development Center Railroad | | USA | TRAFFIC |
| 45 | NDCS | NDC COMMUNICATIONS LLC | | | SCAC4 |
| 46 | NDCU | NIDEC | | F | BIC |
| 47 | NDCW | NDC INC (NATIONAL DISTRIBUTION CENT | | | SCAC4 |
| 48 | NDCX | NICKEL & DIME RAILWAY COMPANY, INC. | | | PWRC |
| 49 | NDD | Nordend S.r.l. | Callsign: Nordend, | I | AVCODES |
| 50 | NDDD | NORIEGA DEWITT, DAVID RUBEN | | | SCAC4 |
| 51 | NDDS | NORDLING, DENNIS GRAIN | | | SCAC4 |
| 52 | NDDX | National Dairy Despatch | 7/1930-7/1932 | | NAKINA |
| 53 | NDDX | National Dairy Despatch, Inc. | 7/1935 | | NAKINA |
| 54 | NDDX | NATIONAL DAIRY DESPATCH | | | PWRC |
| 55 | NDED | NIEBLAS DELFIN, EDGARDO | | | SCAC4 |
| 56 | NDEL | NEWDEL EXPRESS CO INC | | | SCAC4 |
| 57 | NDEM | FERROCARRILES NACIONALES DE MEXICO | | | PWRC |
| 58 | NDEM | Ferrocarriles Nacionales de México | | | RSRV |
| 59 | NDEM | Ferrocarriles Nacionales de Mexico | | MEX | TRAFFIC |
| 60 | NDEP | NAVIERA DEL PACIFICO SA MEXICO | | | SCAC3 |
| 61 | NDEP | NAVIERA DEL PACIFICO SA | | | SCAC4 |
| 62 | NDEQ | NEW DIRECTION EQUIPMENT CO | | | SCAC4 |
| 63 | NDEY | NOBLE DELIVERY | | | SCAC4 |
| 64 | NDF | Namibian Defence Force | Callsign: Namibian Airforce, | NAM | AVCODES |
| 65 | NDF | Namibian Defence Force | | | ICAO1 |
| 66 | NDFE | NEWMANS DISCOUNT FUEL | | | SCAC4 |
| 67 | NDFM | NEUFELD FARMS HARVESTING INC | | | SCAC4 |
| 68 | NDGI | NICKELL, D | | | SCAC4 |
| 69 | NDHA | NEUFELD, JOHAN & JACOB | | | SCAC4 |
| 70 | NDI | KS Nordic Air | | DK | AVCODES |
| 71 | NDIA | NIDIA SHIPPING CORPORATION | | | SCAC3 |
| 72 | NDIC | NOMADIC INTERNATIONAL A/S | | | SCAC3 |
| 73 | NDIC | NORDIC LOGISTICS LLC | | | SCAC4 |
| 74 | NDIG | NAVIGATOR DIRECT INC | | | SCAC4 |
| 75 | NDIN | NATIONAL DISTRIBUTORS INC | | | SCAC3 |
| 76 | NDIN | NATIONAL DISTRIBUTORS INC | | | SCAC4 |
| 77 | NDIR | NEW DIRECTION SHIPPING CO/., LTD. | | | SCAC3 |
| 78 | NDIS | NATIONWIDE DISTRIBUTORS INC | | | SCAC4 |
| 79 | NDIT | NATIONS DIRECT | | | SCAC4 |
| 80 | NDIX | Merchants Despatch Transportation Corp. | added 7/1956; 10/1957; eliminated 7/1960; 4/1961 (not listed) | | NAKINA |
| 81 | NDIX | Merchants Despatch Transportation Corp. | added 7/56; 10/57; eliminated 7/60; 4/61 | | NRHS |
| 82 | NDIX | MERCHANTS DESPATCH TRANSPORTATION CORP. | | | PWRC |
| 83 | NDJ | Maiba Airways | Callsign: Bassamat, | TCH | AVCODES |
| 84 | NDJL | NELSON, D J LTD | | | SCAC3 |
| 85 | NDKB | NICK & DEES TRUCKING & BROKERAGE IN | | | SCAC4 |
| 86 | NDKQ | NORTH DEKAB TRANSFER CO | | | SCAC3 |
| 87 | NDL | Chrono Aviation Inc. d/b/a Chrono Aviation | Callsign: Needle, | CDN | AVCODES |
| 88 | NDLA | NIAGARA DRIVE LTD | | | SCAC4 |
| 89 | NDLC | N D LEASING CO | | | SCAC3 |
| 90 | NDLC | NORTH DELTA COPTERS LTD | | | SCAC4 |
| 91 | NDLD | NORTHLAND DEDICATED LLC | | | SCAC4 |
| 92 | NDLI | NATIONAL DELIVERY SERVICE INC | | | SCAC3 |
| 93 | NDLL | NORTHSHORE DRAYAGE LLC | | | SCAC4 |
| 94 | NDLO | NEW DEAL LOGISTICS | | | SCAC4 |
| 95 | NDLO | Norwegian Defence Logistics Organisation | | NO | VKM |
| 96 | NDLP | NDL TRANSPORT INC | | | SCAC3 |
| 97 | NDLQ | NADLER, MAYNARD | | | SCAC3 |
| 98 | NDLQ | NEW DIMENSION LOGISTICS LLC | | | SCAC4 |
| 99 | NDLR | NDL XPRESS | | | SCAC4 |
| 100 | NDLS | NATIONAL DISTRIBUTORS LEASING INC | | | SCAC4 |
