From BBC Website: Vodafone has scrapped roaming charges for UK customers in 40 countries, meaning they can use their plans there without additional costs.
However, the new terms are being applied initially
only to new or upgraded contracts.
The EU is expected to abolish roaming charges for its 28 member states in June.
Countries in Vodafone's roam-free destinations list include non-EU states such as Norway, Iceland and
Turkey.
Beyond these territories, mobile phone users will be charged £5 per day to use UK plans in 60 states including the United States, Russia, China and India.
Vodafone rival Three already offers free roaming in 42 countries on advanced plans.
http://www.bbc.co.uk/news/technology-39576402