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Is your fleet ready? NZ 3G Shutdown will disable GPS trackers, Dashcams and Asset trackers
New Zealand’s 3G shutdown is coming fast. Spark and One NZ (formerly Vodafone) will switch off their 3G networks by 31 December 2025, ending an era and forcing every business still using 3G telematics devices to upgrade to 4G LTE or lose connectivity completely.
When is 3G being switched off and why?
If your fleet relies on 3G GPS trackers, vehicle telematics, IoT sensors, or M2M devices, this deadline directly affects you. Here’s everything you need to know about the NZ 3G shutdown in 2025 and why switching to 4G telematics hardware now is the smartest move for performance, cost, and future-proofing.
When is the 3G shutdown in New Zealand?
- Spark 3G shutdown: Progressively from mid-2025.
- One NZ 3G shutdown: Full closure will take place from 31 December 2025
- 2degrees: Will take place towards the end of 2025
After December 2025, any device that only supports 3G (including many older telematics units) will stop working.
Why 4G LTE Is Far Superior for Telematics
| Feature | 3G (WCDMA) | 4G LTE (OFDM) |
|---|---|---|
| Data Speed | Up to 7–21 Mbps | 50–150 Mbps+ (real-world) |
| Latency | 100–200 ms | 20–50 ms |
| Connection Reliability | Good | Excellent (better in rural areas too) |
| Concurrent Device Support | Limited | Much higher (critical for large fleets) |
| Future-Proofing | End-of-life in 2025 | Supported well into the 2030s |
Is Your Fleet at Risk from NZ’s 3G Shutdown?
Thousands of New Zealand businesses still run older telematics hardware that only supports 3G or 2G/3G fallback. Common affected devices include:
- Older GPS trackers from 2015–2020
- Some asset trackers and cold-chain monitors
- Legacy M2M SIMs in alarms, EFTPOS machines, and telemetry units
If your devices show “3G only” or were installed before 2020, start planning your 4G telematics upgrade immediately.
This isn’t just about phones. Thousands of vehicles, trailers, machinery, and IoT sensors across logistics, construction, agriculture, and trades still rely on 3G for connectivity. When the networks go dark, so do your devices.
Real-World Impact of the 3G Shutdown on Fleet Management
| Risk Area | What Happens After 31 Dec 2025 | Business Consequences |
|---|---|---|
| Real-time GPS tracking | Stops completely on 3G-only devices | Lost vehicles, delayed deliveries, stolen assets untraceable |
| Driver behaviour & safety alerts | No longer transmitted | Higher crash risk, no instant harsh-braking or speeding alerts |
| Temperature & cold-chain monitoring | Sensors go offline | Potential spoilage of perishable goods, regulatory non-compliance |
| Remote engine diagnostics | No data flow | Increased breakdowns, higher repair costs |
| Rural & regional coverage | Sudden black spots where 3G was the only reliable signal | Entire regions of NZ lose fleet visibility (especially South Island and Far North) |
Ready to future-proof your fleet? Contact a 4G telematics specialist today and beat the deadline.
The 2025 New Zealand 3G network shutdown is non-negotiable. Once the networks turn off, 3G devices will go dark overnight.
Your 4-Step Plan to Prepare for the 4G Telematics Upgrade
- Audit every device – know exactly what’s 3G and must be replaced
- Select the best 4G/5G-ready provider for coverage, cost and support
- Build a prioritised, date-driven upgrade roadmap with testing built in
- Communicate timelines and train drivers/staff on the new system
Upgrading today guarantees:
- Near real-time GPS tracking
- Faster video upload from dashcams
- Instant driver behaviour alerts
- Lower downtime and more accurate ETA predictions
- Compatibility with upcoming 4G networks
Benefits of 4G hardware
Extended wireless network coverage
Enhanced connectivity for fleet tracking.
Higher bandwidth and data speeds
Faster data transmission rates for real time monitoring.
Low latency
Minimal delay in data transfer for instant updates.
Wider range of coverage
Broader geographic reach for tracking remote assets.
Improved network reliability
Enhanced service reliability for uninterrupted tracking.
Greater compatibility with cellular tech
Seamless integration with advanced telematics technology.
Prepare your business
Assessing your fleet inventory
Before embarking on the transition, it's crucial to conduct a thorough assessment of your fleet's existing inventory of telematics devices. This involves compiling a comprehensive list of all the devices currently in use, including GPS trackers, dash cams, that rely on 3G connectivity. This inventory will serve as the foundation for planning the upgrade process and identifying which devices need to be replaced. At Radius, our team can help you with our vast range of products, to match the compatibility of the device.
Prepare your business
Finding the right provider
Fleet managers should explore the offerings of various telecommunications providers to determine the best options for transitioning to 4G services. Try considering factors such as network coverage, data plans, and compatibility with your fleet's devices. Get a free quote from Radius for your upgrade options or provides guidance on transitioning to newer technologies.
Prepare your business
A detailed roadmap
With an understanding of your fleet inventory and telecommunications options, it's time to develop a comprehensive transition plan. This plan should outline the entire process from start to finish, including timelines, responsibilities, and contingency plans. Calculate the time required for installers to replace 3G devices in each vehicle, considering factors such as installation time per vehicle and the total number of vehicles in your fleet. A clear and structured plan will ensure a smooth and efficient transition. Here at Radius, we have our dedicated installers all across New Zealand; we can arrange and timeline your Installations.
Prepare your business
Communication and training
Effective communication and training are essential components of a successful transition away from 3G technology. Hold team meetings with all relevant stakeholders to communicate the upcoming changes, reasons behind the transition, and benefits of upgrading to 4G or 5G technologies. Provide comprehensive training sessions to familiarize your team with the operation of new devices and any updated fleet software or applications. At Radius, we offer personal account managers who will work closely to ensure a smooth transition to advanced telematics solutions and schedule training sessions as well.
Industries we're helping with the 3G shutdown
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