One NZ, New Zealand: 2G and 3G shutdown dates
Updated
One NZ switched off 2G on 23 March 2026 and switched off 3G on 23 March 2026, according to the sources we checked on 26 October 2026. The table gives each source and how far we trust it; the rest of the page says what this means for IoT devices in New Zealand.
2G and 3G status at One NZ
| Network | Status | Date | Confidence | Sources and notes |
|---|---|---|---|---|
| 2G | Switched off | 23 March 2026 | high | one.nz, media.one.nz One NZ (formerly Vodafone NZ). 2G was first scheduled for 31 Dec 2025 (Apr 2024 release); it was switched off with 3G in the phased Jan-Mar 2026 programme; nationwide 2G calling ended in the last stage, 23 Mar 2026. |
| 3G | Switched off | 23 March 2026 | high | one.nz, media.one.nz Formerly Vodafone NZ. Postponed from 31 Aug 2024 to 31 Mar 2025 (Apr 2024 release), then replaced by a phased switch-off from 20 Jan 2026 (Dunedin first); all stages complete 23 Mar 2026. |
Confidence is high when the operator or the regulator states the date, medium when several independent sources agree, low otherwise. We recheck every month.
What it means for IoT devices on One NZ
- 2G devices no longer connect to One NZ. Trackers, alarms and meters that only speak GSM/GPRS need a 4G-based replacement, or a SIM that roams onto another network in New Zealand still running 2G.
- 3G fallback no longer works on One NZ. Devices built for 3G (UMTS) or that fall back to it lose service; 4G devices with 2G fallback are not affected by this closure.
- For new devices, choose 4G-based technologies: LTE Cat-1 bis, LTE-M or NB-IoT where the network offers them.
- Foreign SIMs in New Zealand: permanent roaming of foreign IoT SIMs is allowed with conditions. Details on the New Zealand page.
An M2M.global IoT SIM is not tied to a single network in a country, and its data can reach your cloud without the internet through private delivery.
Other operators in New Zealand
| Operator | 2G | 3G |
|---|---|---|
| 2degrees | Switched off, March 2018 | Switched off, 2 February 2026 |
| Spark | Planned, 31 July 2012 | Switched off, 31 March 2026 |
All operators and both rules for New Zealand: IoT connectivity in New Zealand. Every country: 2G and 3G shutdown dates by country and operator.
Frequently asked questions
When did One NZ switch off 2G in New Zealand?
One NZ switched off its 2G network on 23 March 2026. One NZ (formerly Vodafone NZ). 2G was first scheduled for 31 Dec 2025 (Apr 2024 release); it was switched off with 3G in the phased Jan-Mar 2026 programme; nationwide 2G calling ended in the last stage, 23 Mar 2026.
When did One NZ switch off 3G in New Zealand?
One NZ switched off its 3G network on 23 March 2026. Formerly Vodafone NZ. Postponed from 31 Aug 2024 to 31 Mar 2025 (Apr 2024 release), then replaced by a phased switch-off from 20 Jan 2026 (Dunedin first); all stages complete 23 Mar 2026.