| 1 | NZ | Air New Zealand Limited | ICAO: ANZ, Callsign: New Zealand, IATA Prefix: 086, IATA designator changed from TE. (Was orginally only Domestic Division) | NZ | AVCODES |
| 2 | NZ | NZH | | NL | TRAFFIC |
| 3 | NZA | Billmans Management Ltd t/a Ansett New Zealand | IATA: ZQ, Callsign: Anza, Name changed to Tasman Pacific Airlines of NZ Limited t/a Qantas New Zealand on 29 August 2000. | NZ | AVCODES |
| 4 | NZA | Tasman Pacific Airlines of NZ Limited t/a Qantas New Zealand | IATA: ZQ, Ceased operation in 2001. Name changed from Ansett New Zealand | NZ | AVCODES |
| 5 | NZA | Nayzak Air Transport Company | IATA: M4, IATA Prefix: 728, Designator M4 reinstated by IATA | LAR | AVCODES |
| 6 | NZA | Nayzak Air Transport Company | Callsign: Nayzak Air, Designator M4 recalled by IATA | LAR | AVCODES |
| 7 | NZA | Nayzak Air Transport | | | ICAO1 |
| 8 | NZAU | NOVOZYMES BLAIR INC | | | SCAC4 |
| 9 | NZCS | NAVIX ZAUMA CONTAINER SERVICE TOKYO | | | SCAC3 |
| 10 | NZCU | THE SHIPPING CORPORATION OF NEW ZEALAND LTD | | | PWRC |
| 11 | NZCU | Shipping Corporation Of New Zealand | | | RSRV |
| 12 | NZCU | THE SHIPPING CORP. OF NEW ZEALAND L | | | SCAC3 |
| 13 | NZCU | P & O NEDLLOYD BV | | | SCAC4 |
| 14 | NZD | Nikolai Railway | | RUS | TRAFFIC |
| 15 | NZDM | NAZARENO, D M & SONS INC | | | SCAC3 |
| 16 | NZDM | NINE ZERO EIGHT FIVE-THREE FIVE FIV | | | SCAC4 |
| 17 | NZDU | NOVOZYMES A/S | | DK | BIC |
| 18 | NZDU | NOVOZYMES A/S | | | SCAC4 |
| 19 | NZE | Zenith Airlines Limited | Callsign: Zenith Air, | WAN | AVCODES |
| 20 | NZEA | NINE ZERO EIGHT ZERO-THREE ZERO EIG | | | SCAC4 |
| 21 | NZEI | NAKED ZOO ENTERPRISES INC | | | SCAC4 |
| 22 | NZES | NINE ZERO EIGHT ZERO-SIX NINE THREE | | | SCAC4 |
| 23 | NZFC | NINE ZERO FOUR EIGHT-TWO NINE FIVE | | | SCAC4 |
| 24 | NZFF | NINE ZERO FIVE FIVE ONE FIVE ZERO E | | | SCAC4 |
| 25 | NZFH | NINE ZERO FIVE FOUR-THREE ONE FIVE | | | SCAC4 |
| 26 | NZFS | NINE ZERO FOUR SEVEN-NINE ONE ZERO | | | SCAC4 |
| 27 | NZFW | NINE ZERO FOUR SIX-TWO EIGHT EIGHT | | | SCAC4 |
| 28 | NZH | Noord-Zuid-Hollandsche Stoomtramweg-Maatschappij | Real: NZHSTM | NL | TRAFFIC |
| 29 | NZKT | NICOLOZAKES TRUCKING & CONSTRUCTION | | | SCAC3 |
| 30 | NZKU | NOVOZYMES A/S | | DK | BIC |
| 31 | NZLQ | NINE ZERO NINE FOUR-SIX NINE FIVE F | | | SCAC4 |
| 32 | NZLU | CONTAINER SALES & LEASING LTD | | NZ | BIC |
| 33 | NZM | The Mount Cook Group Ltd. | IATA: NM, Callsign: Mountcook, IATA Prefix: 445, Name changed to The Mount Cook Airline Ltd. | NZ | AVCODES |
| 34 | NZM | The Mount Cook Airline Ltd. | IATA: NM, Callsign: Mountcook, IATA Prefix: 445, Name changed from The Mount Cook Group Ltd. | NZ | AVCODES |
| 35 | NZM | Mount Cook Airlines | IATA: NM | | ICAO1 |
| 36 | NZNA | NINE ZERO NINE ONE-SIX FOUR ZERO FO | | | SCAC4 |
| 37 | NZNB | NINE ZERO NINE FOUR-TWO THREE FOUR | | | SCAC4 |
| 38 | NZNC | NINE ZERO NINE FIVE-SEVEN ZERO ONE | | | SCAC4 |
| 39 | NZNH | NINE ZERO NINE FOUR-TWO SIX SEVEN T | | | SCAC4 |
| 40 | NZNM | NINE ZERO NINE ONE-FIVE NINE ONE NI | | | SCAC4 |
| 41 | NZNR | NINE ZERO NINE FIVE-FOUR ONE | | | SCAC4 |
| 42 | NZOI | NINE ZERO ONE ONE-THREE TWO NINE ON | | | SCAC4 |
| 43 | NZOQ | NINE ZERO ONE THREE-THREE SEVEN SIX | | | SCAC4 |
| 44 | NZOS | NINE ZERO ONE SEVEN-TWO FOUR ZERO F | | | SCAC4 |
| 45 | NZP | ATC Alliance Avia Group, Aircompany | Callsign: Orbita, | RUS | AVCODES |
| 46 | NZPX | The New Zanesville Provision Co. | 7/1930 | | NAKINA |
| 47 | NZPX | NEW ZANESVILLE PROVISION CO. | | | PWRC |
| 48 | NZQB | NINE ZERO EIGHT ONE-FOUR SIX THREE | | | SCAC4 |
| 49 | NZQC | NINE ZERO NINE SEVEN-NINE NINE NINE | | | SCAC4 |
| 50 | NZR | Yanzar | Callsign: Nurik, | KZ | AVCODES |
| 51 | NZR | New Zealand Railways | | NZ | TRAFFIC |
| 52 | NZSB | NINE ZERO SIX ONE THREE ONE ZERO (9 | | | SCAC4 |
| 53 | NZSG | NINE ZERO SIX EIGHT-ZERO SEVEN SEVE | | | SCAC4 |
| 54 | NZSK | NINE ZERO SIX SEVEN-NINE FOUR SEVEN | | | SCAC4 |
| 55 | NZSN | NINE ZERO THREE EIGHT-SEVEN NINE TH | | | SCAC4 |
| 56 | NZSQ | NINE ZERO SIX SIX-ONE THREE TWO THR | | | SCAC4 |
| 57 | NZSU | THE SHIPPING CORPORATION OF NEW ZEALAND LTD | | | PWRC |
| 58 | NZSU | Shipping Corporation Of New Zealand | | | RSRV |
| 59 | NZSU | THE SHIPPING CORP. OF NEW ZEALAND L | | | SCAC3 |
| 60 | NZSU | P & O NEDLLOYD BV | | | SCAC4 |
| 61 | NZSV | NINE ZERO SEV | | | SCAC4 |
| 62 | NZTA | NINE ZERO THREE ZERO- SIX FOUR ZERO | | | SCAC4 |
| 63 | NZTB | NINE ZERO TWO THREE-FIVE ONE THREE | | | SCAC4 |
| 64 | NZTF | NINE ZERO TWO FIVE-THREE SEVEN SIX | | | SCAC4 |
| 65 | NZTG | NINE ZERO THREE EIGHT EIGHT SEVEN S | | | SCAC4 |
| 66 | NZTK | Nadwiślański Zakład Transportu Kolejowego Sp. z o.o. | | PL | VKM |
| 67 | NZTN | NINE ZEROTHREE-SEVEN ZERO THREE FIV | | | SCAC4 |
| 68 | NZX | National Zinc Co. | added 7/1974; 1/1975-1/1980; eliminated 7/1991 | | NAKINA |
| 69 | NZX | National Zinc Co. | 8/1920-7/1923 | | NAKINA |
| 70 | NZX | National Zinc Co., Inc. | 7/1930-4/1970 | | NAKINA |
| 71 | NZX | National Zinc Co., Inc. | 4/38-1/80; eliminated 7/91 | | NRHS |
| 72 | NZX | RETIRED 01-23-92 ATP (ACI# 1392) [NATIONAL ZINC CO.] | | | PWRC |
| 73 | NZX | National Zinc | | | RSRV |
| 74 | NZZO | NINE ZERO ZERO ONE-TWO FOUR ONE ZER | | | SCAC4 |
| 75 | NZZQ | NINE ZERO ZERO THREE-ONE FOUR SIX N | | | SCAC4 |
| 76 | NZZS | NINE ZERO ZERO SIX-EIGHT SIX EIGHT | | | SCAC4 |