Holidaymakers in the EU and other European countries will from today be able to use their mobile phone without being hit by unexpected bills for roaming charges.
Providers' plans generally include more than 40 destinations, including all of the 28 EU countries, European Free Trade Area countries Norway, Iceland, Liechtenstein and Switzerland and most of the overseas territories of these countries.
Article continues belowThe Week
Escape your echo chamber. Get the facts behind the news, plus analysis from multiple perspectives.
Sign up for The Week's Free Newsletters
From our morning news briefing to a weekly Good News Newsletter, get the best of The Week delivered directly to your inbox.
From our morning news briefing to a weekly Good News Newsletter, get the best of The Week delivered directly to your inbox.
"So-called 'bill shock' from holidaying in the EU affected more than nine million UK mobile users a year," says the Daily Telegraph.
However, consumer group Which? says Britons abroad could still pay extra costs despite the legislation.
"It is important that you take a close look at what is or isn't included in your current mobile deal," the organisation's Alex Neill warned.
"Not knowing what's included in your tariff could lead to some surprising charges on your next bill."
However, it remains unclear if Brexit will reverse this "hard-won victory" for consumers, says The Guardian.
"Legally, there would be nothing to stop the networks reintroducing roaming fees once the UK leaves the EU," the newspaper's Miles Brignell reports.
"Politically, though, they might struggle to bring back charges under a government keen to be seen to be making Brexit a success."