NO, Antigua and Barbuda (sovereign English-speaking state in the Lesser Antilles with 365 beaches — one per day of the year according to the tourist slogan) is outside the EU — telecom roaming is billed at high rates with your usual carrier. The Alosea Antigua and Barbuda eSIM is essential for paradise vacations (Half Moon Bay, Pink Sand Beach Barbuda, UNESCO Nelson's Dockyard) or Caribbean cruise stopovers. You connect to Digicel Antigua, Flow or APUA upon landing at St John's V.C. Bird (ANU).