O2 has announced that UK customer will\u00a0be able to use their UK mobile plans, in 47 countries with\u00a0no extra roaming charges.\n\nThe UK mobile provider's decision to allow customers to use minutes, texts and data roaming abroad comes into effect on the 15th of June this year, the same date that the European Union's policy\u00a0of abolishing roaming charges\u00a0begins.\n\nIt's still unclear how the UK's decision to leave the EU by 2019 will affect these new changes.\n\nIn a statement O2 said: "O2 customers don\u2019t need to do anything to take advantage of the changes. Instead, from Thursday 15 June they\u2019ll simply be able to make and receive calls and texts to anyone in O2\u2019s Europe Zone and use their data allowance too."\n\n"If they need extra data while they\u2019re abroad, O2 customers will be able to add a Bolt On just like they can at home \u2013 they\u2019ll be able to use any leftover data when they return too."\n\nThe move comes after EE announced that they would be doing the same last week, and Vodafone has been offering free roaming for over a month at this point.\n\nHowever, Three UK is still the market leader in this department and has been offering fee-less roaming in 42 countries for several years now.\n\nThe full list of countries that customers will be able to take advantage of this offer in are:\u00a0Austria, Azores, Belgium, Bulgaria, Canary Islands, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, French Guiana, Germany, Gibraltar (UK), Greece, Guadeloupe, Hungary, Iceland, Ireland, Italy, Latvia, Liechtenstein, Lithuania, Luxembourg, Madeira, Malta, Martinique, Norway, Poland, Portugal, Reunion Islands, Romania, Saint Barthelemy, Saint Martin (French), San Marino, Slovakia, Slovenia, Spain, Sweden, The Netherlands and Vatican City. Destinations outside the EU\/EEA are also included \u2013 Guernsey, Isle of Man, Jersey, Monaco and Switzerland.\n\nO2 will begin notifying customers of the change via text between now and the 15th of June.