You may have been near a national border
If you’re near a border, your phone may pick up the neighbouring country's network and start using it without you realising. This is called 'inadvertent roaming'.
If you're still having problems, try:
- Changing your phone settings from automatic to manual network selection. Our device guides can show you how
- Switching off your roaming settings
You’ve used your phone at sea
When you make a call on a ferry or cruise ship, you're often on a maritime network. These networks are registered in specific countries rather than your physical location.
For example, if you make a call on a ferry from Portsmouth to Spain, the call can show up as ‘Iceland’ on your bill.
You’ve used your phone on a flight
When you make a call on a plane (‘in-flight calling’), these networks are also registered in specific countries rather than your physical location.