This is when your device accidentally connects to a network in another destination. This can happen if you live or travel close to an international border or a coastline where you may connect to a maritime network.
Accidentally connecting to another network could mean you pay higher roaming charges. You can stop this from happening by switching off data roaming on your device.
For more information about roaming costs, check our roaming abroad page.
Accidental roaming in Northern Ireland
If you live close to the Northern Irish border, you may connect to a network in the Republic of Ireland without meaning to.
To avoid adding accidental charges to your bill, we’ve excluded the Republic of Ireland from our monthly fair use limit of 12GB. And we’ve also removed the daily roaming charge of £2.
There are no fair use limits for making calls or sending texts while roaming in a Go Roam in Europe destination.