The roaming situation for EU SIM cards in Martinique is nuanced. As a French Overseas Department, Martinique technically falls under the EU's 'Roam Like at Home' policy. However, many European mobile network operators impose 'Fair Use Policies' (FUPs) that cap data usage in these territories or may throttle speeds after a certain threshold. For consistent, unrestricted data without unexpected charges, CoreESIM recommends a dedicated plan for Martinique, particularly for users with high data consumption or extended stays.
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Are EU SIM cards exempt from roaming fees in Martinique with CoreESIM?
Updated April 22, 2026
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