Is this WorldESIM plan suitable for non-EU countries bordering Bulgaria, like Turkey, Serbia, or North Macedonia?

For travelers exploring the Balkans, it's important to note that specific WorldESIM country plans are valid exclusively within the designated country, in this case, Bulgaria. If your itinerary includes crossing borders from Sofia into non-EU nations such as Turkey (Istanbul), Serbia (Belgrade), or North Macedonia (Skopje), your Bulgarian plan will not provide coverage. For multi-country journeys, WorldESIM offers excellent regional or global bundles that cover multiple destinations seamlessly.