This specific CoreESIM data plan is provisioned exclusively for network access within Serbia. It does not include roaming allowances for neighboring Balkan states. If your itinerary includes travel to countries such as Croatia, Bosnia and Herzegovina, or Montenegro, your connectivity will cease at the Serbian border. For multi-country Balkan tours, CoreESIM offers regional plans that cover multiple territories, ensuring seamless connectivity from Belgrade to Dubrovnik.
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Is this CoreESIM plan valid for other Balkan countries (e.g., Croatia, Bosnia, Montenegro)?
Updated April 22, 2026
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