List of the top 20 organizations with the largest IP allocations in New Zealand
| Rank | Name | IPv4 addresses | IPv6 /64 networks | AS numbers | Prefixes |
|---|---|---|---|---|---|
| One New Zealand Group Limited | 1,459,201 | 235 | 10 | 100 | |
| Two Degrees Mobile Limited | 1,029,632 | 1.02 x 237 | 5 | 181 | |
| Spark New Zealand Trading Limited | 925,184 | 1.11 x 232 | 5 | 745 | |
| 4 | Voyager Internet Ltd. | 113,920 | 1.5 x 234 | 2 | 41 |
| 5 | Mercury NZ Limited | 110,336 | 233 | 2 | 34 |
| 6 | Massey University | 100,864 | 232 | 1 | 12 |
| 7 | Devoli LTD | 87,808 | 1.69 x 233 | 2 | 206 |
| 8 | InSPire Net Ltd | 76,818 | 232 | 1 | 49 |
| 9 | Air New Zealand Limited | 67,584 | 0 | 1 | 9 |
| 10 | Jade Software Corporation Limited | 66,304 | 0 | 1 | 18 |
| 11 | Sky Network Television Ltd | 66,048 | 232 | 2 | 195 |
| 12 | Auckland University of Technology | 66,048 | 232 | 1 | 4 |
| 13 | The University of Auckland | 66,048 | 217 | 1 | 5 |
| 14 | University of Otago | 65,792 | 0 | 1 | 2 |
| 15 | INTERNET COMPANY OF NEW ZEALAND LIMITED | 64,768 | 232 | 2 | 19 |
| 16 | HostRoyale Technologies Pvt Ltd | 50,944 | 235 | 1 | 64 |
| 17 | Solarix Networks Limited | 49,408 | 1.61 x 233 | 5 | 96 |
| 18 | Kordia Limited | 44,544 | 232 | 1 | 26 |
| 19 | University of Canterbury | 41,472 | 232 | 1 | 7 |
| 20 | Vector Communications Ltd | 37,376 | 232 | 1 | 20 |