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Advance notice of 3G Network Upgrade


As part of a nationwide network modernisation programme aimed at ensuring An Post Mobile customers continue to enjoy enhanced coverage and connectivity, the existing 3G network (a wireless technology that is over 20 years old), will be upgraded to a more sustainable and energy efficient 4G service in the coming months. At that time a phased programme will begin to move the An Post Mobile 3G service on to our 4G service. Today, very little 3G data travels on the An Post Mobile network, so the expectation is that the move from 3G to 4G will not impact the majority of our customers.
The 2G network, which provides core voice coverage, will not be affected and will continue for the foreseeable future.
Why is this necessary?
The transition for 3G to 4G is necessary in order to futureproof our services, make it more sustainable and energy efficient, and to increase levels of network performance and resilience. Similar programmes are in progress across the world (UK, Italy, Netherlands, USA and many other countries).
When will this happen?
From early 2023, An Post Mobile will start the move for our 3G service on to our more reliable and futureproofed 4G network. This nationwide network modernisation programme is set to be completed over an 18-month period. An Post Mobile will make best efforts to contact any effected customers closer to the time.
What does it mean for An Post Mobile customers?
While we expect that the move from 3G to 4G will not affect the majority of our customer’s, if you have an older ‘legacy’ device, including handsets, tablets and IOT/M2M devices, you may find these devices are not compatible with our network once the 3G network service moves to 4G. Below you will find a list of the devices that could be affected.  Some customers will also need a setting update.
There is still plenty of time until we move the 3G network to 4G, so, while no immediate action is required, customers with older ‘legacy’ devices may wish to consider upgrading to a 4G device to enjoy enhanced coverage and improved connectivity, rather than falling back to the slower 2G network.
What support can customers expect?          
An Post Mobile is well aware that some customers may need support with the move to 4G. Our dedicated customer care team will be on hand to provide support and assistance to ensure a smooth transition from 3G to 4G for all An Post Mobile customers.
What support will older and more vulnerable customers get? 
Some older (and more vulnerable) customers may need additional support with the move from 3G to 4G. Our dedicated customer care team will provide extra support to ensure older and more vulnerable customers get the assistance they need.
Customers can also contact Hi Digital, a free programme offered by charities ALONE and Active Retirement Ireland. It offers training on how to use smartphones and the internet. Support is available online or in person: Go to or call 1800 203030 .
What will happen if I don’t upgrade to 4G or 5G?
If you have a 3G only phone, and haven’t made the switch to 4G by 2023, your phone will switch over to the 2G network. An Post Mobile will do everything possible to ensure you benefit from the best possible service connection. Our expert customer service team will be ready to answer any questions you may have and will ensure you find the right solution. As mentioned earlier, customers with older ‘legacy’ devices may wish to consider an upgrade to a 4G device and enjoy enhanced coverage and improved connectivity, rather than falling back to the slower 2G network. 
What devices other than handsets may be impacted?
Some older legacy devices may be 3G only and will need to be updated/replaced, or may need a new SIM. Customers may need to contact the manufacturer to check this. The list below is not exhaustive, and is provided for guidance only:

  • Medical alert devices (fall detectors, communicators, etc.)
  • Fire alarms
  • Inventory trackers
  • Smartwatches
  • E-readers (Kindles, Nooks, etc.)
  • GPS trackers (including for pets)
  • Safety devices
  • Water features/fountains
  • Traffic lights
  • Handheld devices
  • Heating systems
  • Payment devices


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